1. An optical system for a car lamp is characterized by comprising a lighting unit or a lighting unit group with a plurality of lighting units, wherein a light-emitting surface (3) is arranged in front of the lighting unit, the lighting unit comprises a light-entering part and a light-guiding structure, the light-entering part is arranged to enable incident light to be converged and emitted to the light-guiding structure, the light-guiding structure comprises a first reflecting surface and a second reflecting surface, one part of the light converged by the light-entering part is emitted to the first reflecting surface, after being reflected by the first reflecting surface, the other part of the light converged by the light-entering part is reflected by the second reflecting surface, the emitted light of the second reflecting surface of the lighting unit or the lighting unit group can form an intermediate light shape (a) after being projected, and the light forming the intermediate light shape (a) can be emitted through the light-emitting surface (3) to form a lighting light shape (b), the light distribution of the intermediate light shape (a) and the illumination light shape (b) is uniform.

2. The vehicle lamp optical system according to claim 1, wherein the light exit surface (3) is a smooth curved surface, and a longitudinal sectional line thereof is a straight line extending in an up-down direction.

3. The optical system for vehicular lamp according to claim 1, wherein the light incident portion is a semi-light-gathering cup structure, and the outer contour surface thereof includes a flat surface and a curved surface with a gradually increasing aperture from an end away from the light guide structure to an end close to the light guide structure, the curved surface is a reflection surface of the light incident portion, a concave cavity is provided at an end of the light incident portion away from the light guide structure, a sidewall of the concave cavity is a second light incident surface of the light incident portion, a side of the concave cavity close to the light guide structure is provided with a protrusion, and the protrusion is a first light incident surface of the light incident portion.

4. Vehicle lamp optical system according to claim 1, characterized in that the lighting unit is a main low beam unit (1), or an auxiliary low beam unit (2), or a high beam unit, the lighting unit group comprising a plurality of the same lighting units, or a main low beam unit (1) and an auxiliary low beam unit (2), the plurality of lighting units in the lighting unit group being arranged at intervals along the length direction of the light exit surface (3).

5. The vehicular lamp optical system according to claim 4, wherein the light incident portion of the auxiliary low beam unit (2) is an auxiliary low beam light incident portion (21), the first reflective surface of the light guide structure of the auxiliary low beam unit (2) is an auxiliary low beam first reflective surface (22), the second reflective surface is an auxiliary low beam second reflective surface (23), a part of the light converged by the auxiliary low beam light incident portion (21) is incident on the auxiliary low beam first reflective surface (22), the auxiliary low beam first reflective surface (22) is capable of reflecting the incident light to the auxiliary low beam second reflective surface (23), and another part of the light converged by the auxiliary low beam light incident portion (21) is directly incident on the auxiliary low beam second reflective surface (23); the auxiliary near-beam second reflecting surface (23) can reflect incident light to form an auxiliary near-beam intermediate light shape, reflect the light forming the auxiliary near-beam intermediate light shape to the light emitting surface (3), and form an auxiliary near-beam illuminating light shape after being projected by the light emitting surface (3); an auxiliary low-beam cut-off line structure (221) is formed on the edge of the auxiliary low-beam first reflection surface (22) close to the auxiliary low-beam second reflection surface (23).

6. The vehicle lamp optical system according to claim 5, wherein the auxiliary low-beam first reflecting surface (22) and the auxiliary low-beam second reflecting surface (23) are provided above the auxiliary low-beam light entrance portion (21) in this order from bottom to top; the auxiliary low-beam first reflecting surface (22) is a plane, and the auxiliary low-beam second reflecting surface (23) is a curved surface.

7. Vehicle lamp optical system according to claim 5, characterized in that the auxiliary low beam unit (2) is formed in one piece with the light exit surface (3).

8. The vehicular lamp optical system according to claim 4, wherein the light incident portion of the main low-beam unit (1) is a main low-beam light incident portion (11), the first reflection surface of the light guide structure of the main low-beam unit (1) is a main low-beam first reflection surface (12), the second reflection surface is a main low-beam second reflection surface (15), the light guide structure of the main low-beam unit (1) further comprises a main low-beam first refraction surface (13) and a main low-beam second refraction surface (14), a portion of light converged by the main low-beam light incident portion (11) is incident on the main low-beam first reflection surface (12), the main low-beam first reflection surface (12) can refract incident light to the main low-beam second reflection surface (15) through the main low-beam first refraction surface (13) and the main low-beam second refraction surface (14) in sequence, another part of the light rays converged by the main and near light incident part (11) are directly refracted by the main and near light first refraction surface (13) and the main and near light second refraction surface (14) in sequence and then are reflected to the main and near light second reflection surface (15); the main and near light second reflecting surfaces (15) can reflect the incident light to the light emitting surface (3); and a main and low beam cut-off line structure (121) is formed on the edge of the main and low beam first reflecting surface (12) close to the main and low beam first refractive surface (13).

9. The vehicle lamp optical system according to claim 8, wherein the main low-beam first reflecting surface (12), the main low-beam first refractive surface (13), the main low-beam second refractive surface (14), and the main low-beam second reflecting surface (15) are provided above the main low-beam light entrance portion (11) in this order from bottom to top; the main near-beam first reflecting surface (12) is a plane, the main near-beam first refracting surface (13) is an upward convex curved surface, the main near-beam second refracting surface (14) is a downward convex curved surface, the main near-beam second reflecting surface (15) is a plane or a curved surface, wherein,

when the main and near light second reflecting surfaces (15) are planes, the main and near light second refraction surface (14) can refract the incident light to form a light shape consistent with the light distribution of the main and near light illumination light shape, and the main and near light middle light shape is formed after the main and near light second reflecting surfaces (15) project the light; when main near light second plane of reflection (15) is the curved surface, main near light second plane of reflection (15) can form after the light reflection of incidence main near light intermediate light shape to will form the light reflection of main near light intermediate light shape reaches go out plain noodles (3), the warp form after going out plain noodles (3) are thrown main near light illumination light shape.

10. The vehicular lamp optical system according to claim 8, wherein the main low-beam second refractive surface (14) and the main low-beam second reflective surface (15) are formed integrally with the light exit surface (3), and the main low-beam light entrance portion (11), the main low-beam first reflective surface (12), and the main low-beam first refractive surface (13) are formed integrally.

11. The vehicular lamp optical system according to claim 4, wherein the light entrance portion of the high beam unit is a high beam light entrance portion, the first reflecting surface of the light guide structure of the high beam unit is a high beam first reflecting surface, the second reflecting surface is a high beam second reflecting surface, a part of the light beams condensed by the high beam light entrance portion is incident on the high beam first reflecting surface, the high beam first reflecting surface is capable of reflecting the incident light beams to the high beam second reflecting surface, and another part of the light beams condensed by the high beam light entrance portion is directly incident on the high beam second reflecting surface; the high-beam second reflecting surface can reflect the incident light to form a high-beam intermediate light shape, reflect the light forming the high-beam intermediate light shape to the light emitting surface (3), and form a high-beam illuminating light shape after being projected by the light emitting surface (3).

12. Vehicle lamp optical system according to claim 11, characterized in that the high beam unit is formed integrally with the light exit surface (3).

13. The vehicle lamp optical system according to any one of claims 1 to 12, further comprising a signal lamp unit (5), wherein the signal lamp unit (5) is disposed behind the light exit surface (3), the signal lamp unit (5) comprises a signal lamp light entrance surface (51) and a signal lamp reflection surface (52), and the signal lamp reflection surface (52) can reflect the light rays incident from the signal lamp light entrance surface (51) to the light exit surface (3).

14. The vehicular lamp optical system according to claim 13, wherein the signal lamp unit (5) and the illumination unit are arranged in a vertical direction, and the signal lamp unit (5) is integrated with the light exit surface (3); the number of the signal lamp units (5) is one or more, and when the number of the signal lamp units (5) is more than one, the signal lamp units (5) are arranged along the length direction of the light emergent surface (3).

15. Vehicle lamp optical system according to claim 13, characterized in that a light diffusing structure (521) is provided on the signal lamp reflecting surface (52).

16. A vehicle lamp module comprising the vehicle lamp optical system according to any one of claims 1 to 15 and a light source cooperating with the vehicle lamp optical system.

17. A vehicular lamp comprising the vehicular lamp module defined in claim 16.

18. A vehicle comprising the lamp of claim 17.

Background

At present, the illumination implementation of far and near light mainly includes two types, namely a lens type and a reflection type: the lighting lamp of the vehicle is formed by the combination of the reflector and the lens or by the form of the reflector alone. The light-emitting window of far and near light module group of prior art presents the pattern for round lens or square lens, and the size of this light-emitting window is subject to the size of speculum and lens, and the upper and lower opening size of light-emitting window is very big, along with the continuous promotion of automobile modeling demand, people more hope that the upper and lower opening size of car light-emitting window is littleer, the molding is more diversified, for example, the light-emitting window is the more diversified molding of narrow and long type and lines.

In addition, the vehicle lamp located on the front side of the vehicle includes a position lamp, a turn lamp, a daytime running lamp and other signal lamps which are related to the safety of the vehicle, in addition to a low beam lamp and a high beam lamp for realizing high and low beam illumination.

Disclosure of Invention

The present invention provides an optical system for a vehicle lamp, which can make the shape of a light-emitting window of the vehicle lamp more diversified.

The technical problem to be solved by the second aspect of the invention is to provide a car lamp module, which can realize the design of diversified shapes of light-emitting windows of car lamps.

A third aspect of the present invention is to provide a vehicle lamp, which can implement a design with diversified shapes of light exit windows.

The object of the fourth aspect of the present invention is to provide a vehicle that can be designed in a variety of configurations.

In order to solve the above technical problems, a first aspect of the present invention provides an optical system for a vehicle lamp, including a lighting unit or a lighting unit group having a plurality of the lighting units, a light exit surface is disposed in front of the lighting unit, the lighting unit includes a light entry portion and a light guide structure, the light entry portion is configured to enable incident light to be converged and emitted to the light guide structure, the light guide structure includes a first reflection surface and a second reflection surface, a part of light converged by the light entry portion is emitted to the first reflection surface, after being reflected by the first reflection surface, another part of light converged by the light entry portion is reflected by the second reflection surface, after being projected, emitted light of the second reflection surface of the lighting unit or the lighting unit group can form an intermediate light shape, and light forming the intermediate light shape can be emitted through the light exit surface to form a lighting light shape, the light distribution of the intermediate light shape and the illumination light shape is consistent.

Preferably, the light-emitting surface is a smooth curved surface, and a longitudinal sectional line of the light-emitting surface is a straight line extending in the up-down direction.

Preferably, the light incident portion is a semi-light-gathering cup structure, an external contour surface of the light incident portion includes a plane and a curved surface, the caliber of the curved surface gradually increases from one end far away from the light guide structure to one end close to the light guide structure, the curved surface is a reflection surface of the light incident portion, one end of the light incident portion far away from the light guide structure is provided with a concave cavity, a side wall of the concave cavity is a second light incident surface of the light incident portion, one side of the concave cavity close to the light guide structure is provided with a protrusion, and the protrusion is a first light incident surface of the light incident portion.

Preferably, the lighting unit is a main low beam unit, or an auxiliary low beam unit or a high beam unit, the lighting unit group includes a plurality of the same lighting units, or a main low beam unit and an auxiliary low beam unit, and the lighting units in the lighting unit group are arranged at intervals along the length direction of the light emitting surface.

Preferably, the light incident portion of the auxiliary low beam unit is an auxiliary low beam light incident portion, the first reflective surface of the light guide structure of the auxiliary low beam unit is an auxiliary low beam first reflective surface, the second reflective surface is an auxiliary low beam second reflective surface, a part of the light rays converged by the auxiliary low beam light incident portion is incident on the auxiliary low beam first reflective surface, the auxiliary low beam first reflective surface can reflect the incident light rays to the auxiliary low beam second reflective surface, and another part of the light rays converged by the auxiliary low beam light incident portion is directly incident on the auxiliary low beam second reflective surface; the auxiliary near-light second reflecting surface can reflect incident light to form an auxiliary near-light intermediate light shape, reflect the light forming the auxiliary near-light intermediate light shape to the light emitting surface, and form an auxiliary near-light illuminating light shape after being projected by the light emitting surface; an auxiliary near-beam cut-off line structure is formed on the edge of the auxiliary near-beam first reflecting surface, which is close to the auxiliary near-beam second reflecting surface.

Preferably, the auxiliary low-beam first reflecting surface and the auxiliary low-beam second reflecting surface are arranged above the auxiliary low-beam light incoming portion in sequence from bottom to top; the first reflecting surface of the auxiliary near light is a plane, and the second reflecting surface of the auxiliary near light is a curved surface.

Preferably, the auxiliary low beam unit is formed integrally with the light exit surface.

Preferably, the light entering portion of the main low-beam unit is a main low-beam light entering portion, the first reflection surface of the light guide structure of the main low-beam unit is a main low-beam first reflection surface, the second reflection surface is a main low-beam second reflection surface, the light guide structure of the main low-beam unit further includes a main low-beam first refraction surface and a main low-beam second refraction surface, a part of the light converged by the main low-beam light entering portion is incident on the main low-beam first reflection surface, the main low-beam first reflection surface can refract the incident light sequentially by the main low-beam first refraction surface and the main low-beam second refraction surface and then irradiate the incident light to the main low-beam second reflection surface, and the other part of the light converged by the main low-beam light entering portion is directly refracted sequentially by the main low-beam first refraction surface and the main low-beam second refraction surface and then irradiates to the main low-beam second reflection surface; the main and near light second reflecting surfaces can reflect the incident light to the light emitting surface; the edge of the main near-light first reflecting surface, which is close to the main near-light first refracting surface, is provided with a main near-light cut-off line structure.

Preferably, the main low-beam first reflecting surface, the main low-beam first refracting surface, the main low-beam second refracting surface and the main low-beam second reflecting surface are sequentially arranged above the main low-beam light incoming portion from bottom to top; the main and near light first reflecting surfaces are planes, the main and near light first refractive surfaces are curved surfaces protruding upwards, the main and near light second refractive surfaces are curved surfaces protruding downwards, and the main and near light second reflective surfaces are planes or curved surfaces, wherein when the main and near light second reflective surfaces are planes, the main and near light second refractive surfaces can refract incident light to form light shapes consistent with the light distribution of the main and near light shapes, and form main and near light intermediate light shapes after being projected by the main and near light second reflective surfaces; when main near light second plane of reflection is the curved surface, main near light second plane of reflection can form after the reflection of the shined light main near light intermediate light shape to will form the light reflection of main near light intermediate light shape reaches the play plain noodles, form after the play plain noodles is thrown main near light illumination light shape.

Preferably, the main low-beam second refractive surface and the main low-beam second reflective surface are formed integrally with the light exit surface, and the main low-beam light entrance portion, the main low-beam first reflective surface, and the main low-beam first refractive surface are formed integrally.

Preferably, the light entering part of the high beam unit is a high beam light entering part, the first reflecting surface of the light guiding structure of the high beam unit is a high beam first reflecting surface, the second reflecting surface is a high beam second reflecting surface, a part of the light beams converged by the high beam light entering part is emitted to the high beam first reflecting surface, the high beam first reflecting surface can reflect the emitted light beams to the high beam second reflecting surface, and the other part of the light beams converged by the high beam light entering part is directly emitted to the high beam second reflecting surface; the high-beam second reflecting surface can reflect the incident light to form a high-beam intermediate light shape, reflect the light forming the high-beam intermediate light shape to the light emitting surface, and form a high-beam illuminating light shape after being projected by the light emitting surface.

Preferably, the high beam unit is formed integrally with the light exit surface.

Preferably, car light optical system still includes the signal lamp unit, the signal lamp unit is established play plain noodles rear, the signal lamp unit includes signal lamp income plain noodles and signal lamp plane of reflection, the signal lamp plane of reflection can with by the light reflection that the signal lamp income plain noodles jets into extremely it goes out the plain noodles.

Preferably, the signal lamp unit and the lighting unit are arranged along the vertical direction, and the signal lamp unit and the light emergent surface are connected into a whole; the number of the signal lamp units is one or more, and when the number of the signal lamp units is more than one, the signal lamp units are arranged along the length direction of the light emergent surface.

Preferably, a light diffusion structure is arranged on the reflecting surface of the signal lamp.

The invention provides a vehicle lamp module, which comprises the vehicle lamp optical system and a light source matched with the vehicle lamp optical system.

The third aspect of the invention provides a vehicle lamp comprising the vehicle lamp module set of the second aspect.

A fourth aspect of the invention provides a vehicle including the lamp of the third aspect.

The lighting unit of the vehicle lamp optical system is arranged to form the middle light shape which is consistent with the light distribution of the lighting light shape after the incident light is emitted, the light distribution of the middle light shape cannot be changed by the refraction of the light-emitting surface arranged in front of the lighting unit, the lighting light shape which meets the requirements of regulations can be formed, the light-emitting surface can be designed into different shapes, the design requirement that the molding surface is a free curved surface can be met, and the shape of the light-emitting window of the vehicle lamp is more diversified.

Additional features and advantages of the invention will be set forth in the detailed description which follows.

Drawings

FIG. 1 is a schematic structural diagram of one embodiment of the present invention;

fig. 2 is a schematic structural view of an auxiliary low beam unit and a light emitting surface according to an embodiment of the present invention;

FIG. 3 is a first schematic structural diagram of an auxiliary low beam unit according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of an auxiliary low beam unit according to an embodiment of the present invention;

FIG. 5 is a schematic optical path diagram of an auxiliary low beam unit in one embodiment of the present invention;

FIG. 6 is a schematic structural diagram of a main and low beam unit and a light emitting surface according to an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a main low beam unit according to an embodiment of the present invention;

FIG. 8 is a schematic optical path diagram of the main low beam unit in one embodiment of the present invention;

FIG. 9 is a first schematic structural diagram of another embodiment of the present invention;

FIG. 10 is a second schematic structural view of another embodiment of the present invention;

FIG. 11 is an enlarged schematic view of FIG. 10 at A;

FIG. 12 is a third schematic structural view of another embodiment of the present invention;

FIG. 13 is a sectional view taken along line B-B of FIG. 12;

fig. 14 is a schematic optical path diagram of an auxiliary low beam unit and a signal lamp unit in another embodiment of the present invention;

FIG. 15 is a cross-sectional view C-C of FIG. 12;

fig. 16 is a schematic optical path diagram of a main low beam unit and a signal lamp unit in another embodiment of the present invention;

FIG. 17 is a front view of a light exiting surface in another embodiment of the present invention;

fig. 18 is a schematic structural view of a signal lamp unit (excluding a lighting unit) in another embodiment of the present invention;

fig. 19 is a comparison of the intermediate light shape formed after exiting the illumination unit of the present invention and the illumination light shape formed after exiting the light exit surface.

Description of the reference numerals

1 main low beam unit 11 main low beam light inlet part

111 first light incident surface of main near light 112 second light incident surface of main near light

113 third reflection surface 12 for main and low beams

121 main and low beam cut-off line structure 13 main and low beam first refraction surface

14 primary and secondary light secondary refraction surface 15 primary and secondary reflection surface

2 auxiliary low beam unit 21 for assisting low beam light entering part

211 auxiliary low-beam first light-in surface 212 auxiliary low-beam second light-in surface

213 auxiliary low beam third reflecting surface 22 auxiliary low beam first reflecting surface

221 auxiliary low-beam cut-off line structure 23 auxiliary low-beam second reflecting surface

3 light-emitting surface 31 signal lamp area

32 low beam region 4 illumination source

5 signal lamp unit 51 signal lamp light incident surface

52 signal lamp reflecting surface 521 light diffusion structure

6 signal lamp light source 7 virtual screen

8 light distribution screen a middle light shape

b lighting light shape

Detailed Description

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", and the like, indicate orientations or positional relationships for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention. Wherein "up" refers to a direction approaching the signal light unit and away from the lighting unit, and "down" is a direction opposite to "up"; "front" refers to the light exit direction of the lighting unit, and "rear" is the opposite direction to "front"; the terms "left" and "right" are directions perpendicular to the directions of "up" and "down" and the directions of "front" and "rear".

The light distribution screen is a screen for testing the light distribution performance of a lamp and is a vertical screen arranged 25m ahead of a vehicle; "virtual screen" is an imaginary ray-casting screen; "light distribution" refers to the light characteristics such as light intensity distribution, illumination distribution, etc. projected by light on a light distribution screen or a virtual screen; "light distribution is consistent" means that the light distribution is basically consistent and can meet the requirements of the vehicle lamp regulations within the allowable range; "intermediate light shape a" refers to a light shape in which light is projected on a virtual screen and can form a specific shape; the "illumination light shape b" refers to a light shape in which light is projected on a light distribution screen and can be formed into a specific shape.

The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.

The invention provides an optical system for a vehicle lamp, comprising a lighting unit or a lighting unit group with a plurality of lighting units, the front of the illumination unit is provided with a light-emitting surface 3, the illumination unit comprises a light-entering part and a light-guiding structure, the light inlet part is arranged to enable the incident light to be converged and emitted to the light guide structure, the light guide structure comprises a first reflecting surface and a second reflecting surface, a part of the light rays converged by the light incident part are emitted to the first reflecting surface and reflected by the first reflecting surface, the other part of the light rays capable of being converged with the light incident part is reflected by the second reflecting surface, the emergent light of the second reflecting surface of the lighting unit or the lighting unit group can form an intermediate light shape a after being projected, the light forming the intermediate light shape a can be emergent from the light emergent surface 3 to form a lighting light shape b, and the light distribution of the intermediate light shape a is consistent with that of the lighting light shape b.

In the optical system for the vehicle lamp, the lighting unit is arranged to make the incident light beam form an intermediate light shape a consistent with the light beam distribution of the lighting light shape b after being emitted, and to emit the light beam formed with the intermediate light shape a to the light emitting surface 3, and to emit the light beam of the intermediate light shape a through the light emitting surface 3. Although the light-emitting surface 3 refracts the light, the light distribution of the intermediate light shape a is not changed by the refraction of the light-emitting surface 3. As shown in fig. 19, if the virtual screen 7 is virtually disposed between the illumination unit and the light exit surface 3, the shape of the intermediate light shape a projected on the virtual screen 7 by the outgoing rays of the illumination unit or the illumination unit group is substantially the same as the shape of the desired illumination light shape b; the illumination light shape b projected onto the light distribution screen 8 after being refracted by the light outgoing surface 3 is still the illumination light shape meeting the requirements of the regulations, and the shapes of the front light shape and the rear light shape are basically the same, so that the light distribution of the middle light shape a cannot be changed by the refraction of the light outgoing surface 3. In the lighting module of the prior art, the light shape with a specific shape cannot be formed before the light-emitting lens, that is, the light is projected on the virtual screen as a messy light spot without a shape, and the light must be refracted by the light-emitting lens to form the lighting light shape with a specific shape, so that the shape of the light-emitting lens is greatly limited. In summary, since the light-emitting surface 3 of the optical system of the vehicle lamp has little influence on the light distribution of the intermediate light shape a formed after the light is emitted by the lighting unit, the light-emitting surface 3 can be designed into different shapes, and the design requirement that the molded surface is a free-form surface can be met.

Preferably, the light emitting surface 3 is a smooth curved surface, and a longitudinal sectional line thereof is a straight line extending in the up-down direction. The longitudinal sectional line of the light emitting surface 3 is a straight line extending in the vertical direction, so that the refraction effect of the light emitting surface 3 on light in the vertical direction can be reduced, the light forming the middle light shape a is only finely adjusted in the left-right direction after being emitted through the light emitting surface 3, and the light cannot be changed in the vertical direction, and the influence of the light emitting surface 3 on the middle light shape a is further reduced.

More specifically, the light incident portion is a semi-light-gathering cup structure, an external contour surface of the light incident portion includes a plane and a curved surface, the caliber of the curved surface gradually increases from one end far away from the light guide structure to one end close to the light guide structure, the curved surface is a reflection surface of the light incident portion, one end of the light incident portion far away from the light guide structure is provided with a concave cavity, a side wall of the concave cavity is a second light incident surface of the light incident portion, one side of the concave cavity close to the light guide structure is provided with a protrusion, and the protrusion is a first light incident surface of the light incident portion, namely the light incident portion is formed by enclosing the plane, the reflection surface of the light incident portion, the first light incident surface of the light incident portion and the second light incident surface of the light incident portion. The light entering the light incident portion is divided into two parts to be emitted, one part of the light is directly emitted through the first light incident surface and is emitted to the light guide structure, and the other part of the light is emitted through the second light incident surface to the reflecting surface of the light incident portion and is reflected to the light guide structure through the reflecting surface. Through setting up the income light portion of half spotlight cup structure, compare and adopt whole spotlight cup structure, can realize better spotlight effect to light in front and back direction, consequently can make the light guide structure that corresponds about from top to bottom the size can be done very little, and then can make the upper and lower size of going out plain noodles 3 diminish to realize the little open design of light-emitting window.

In particular, the lighting unit is a main low beam unit 1, or an auxiliary low beam unit 2, or a high beam unit, which comprises a plurality of identical lighting units, or a main low beam unit 1 and an auxiliary low beam unit 2. When there are multiple lighting units, the light exit surface 3 may be a strip-shaped free-form surface, and the multiple lighting units in the lighting unit group may be arranged at intervals along the length direction of the light exit surface 3. Therefore, the vehicle lamp optical system can be used in a low-beam or high-beam lighting module to realize the low-beam or high-beam function. In addition, when the high beam function is realized, the irradiation area of the vehicle lamp can be controlled by arranging a plurality of high beam units and a plurality of illumination light sources 4 matched with the high beam units and controlling the on/off of each illumination light source 4 so as to avoid the area of the vehicle running in opposite directions, so that the problem of dazzling is avoided, the intelligent anti-dazzling effect is achieved, and the high beam ADB function is realized; and when realizing the passing light function, can also be through setting up a plurality of passing light lighting units and with a plurality of lighting source 4 of a plurality of passing light lighting unit matched with, can set up a plurality of main passing light units 1 or set up a plurality of main passing light units 1 and a plurality of supplementary passing light unit 2, the lighting source 4 switch that corresponds of the passing light inflection point stop line structure of every passing light lighting unit of independent control realizes the removal of passing light inflection point stop line horizontal direction, the removal of passing light inflection point promptly, thereby realize AFS follow-up turns to the illumination function. Therefore, the vehicle lamp optical system can be applied to dipped headlights, high beams, corner lamps, curve auxiliary illuminating lamps or fog lamps and the like according to different illumination requirements, and can also realize the AFS follow-up steering illumination function and the high beam ADB illumination function.

It should be noted that, when a plurality of lighting units are provided, the relative position between each lighting unit and the light-emitting surface 3 needs to be determined according to the bending direction of the light-emitting surface 3, so as to ensure that the refraction of the light-emitting surface 3 to the emergent light of each lighting unit does not affect the light distribution of the intermediate light shape a, so that the shape of the lighting light shape b formed after being emitted through the light-emitting surface 3 is basically unchanged from the shape of the intermediate light shape a, and the lighting light shape b can be emitted towards the front, so as to meet the requirements of the vehicle lamp regulations and can be projected to the front of the vehicle for lighting. For example, when the light emitting surface 3 is curved forward as shown in fig. 1 and has a small curvature, the arrangement trend of the plurality of lighting units may be consistent with the extension trend of the light emitting surface 3, and when the light emitting surface 3 is not curved forward or has a large curvature, the arrangement trend of the plurality of lighting units may not be consistent with the extension trend of the light emitting surface 3, and needs to be adaptively adjusted according to the refraction degree of the light emitting surface 3 to the light.

As a specific embodiment, as shown in fig. 1 to 8, when the vehicular lamp optical system of the present invention is used for a low beam module, the vehicular lamp optical system includes a lighting unit group including at least one main low beam unit 1 and a plurality of auxiliary low beam units 2. The emergent light of the main near light unit 1 is suitable for forming a main near light intermediate light shape, the emergent light of the auxiliary near light unit 2 is suitable for forming an auxiliary near light intermediate light shape, the light forming the main near light intermediate light shape and the light forming the auxiliary near light intermediate light shape are projected through the light emitting surface 3 to form a main near light illumination light shape and an auxiliary near light illumination light shape, the main near light illumination light shape and the auxiliary near light illumination light shape are superposed to form a complete near light illumination light shape, and the light forming the near light illumination light shape is projected to the front of the vehicle for illumination.

Specifically, as shown in fig. 2 to 4, the light incident portion of the auxiliary low beam unit 2 is an auxiliary low beam light incident portion 21, the auxiliary low beam light incident portion 21 includes an auxiliary low beam first light incident surface 211, an auxiliary low beam second light incident surface 212 and an auxiliary low beam third reflecting surface 213, the first reflecting surface of the light guiding structure of the auxiliary low beam unit 2 is an auxiliary low beam first reflecting surface 22, the second reflecting surface is an auxiliary low beam second reflecting surface 23, a part of the light condensed by the auxiliary low beam light incident portion 21 is incident on the auxiliary low beam first reflecting surface 22, the auxiliary low beam first reflecting surface 22 can reflect the incident light to the auxiliary low beam second reflecting surface 23, and another part of the light condensed by the auxiliary low beam light incident portion 21 is directly incident on the auxiliary low beam second reflecting surface 23; the auxiliary near-light second reflecting surface 23 can reflect the incident light to form an auxiliary near-light intermediate light shape, reflect the light forming the auxiliary near-light intermediate light shape to the light emitting surface 3, and form an auxiliary near-light illuminating light shape after being projected through the light emitting surface 3.

In the present embodiment, by providing the auxiliary low-beam first reflecting surface 22 and the auxiliary low-beam second reflecting surface 23, the transmission direction of light can be better adjusted, so that a desired light shape can be better formed, and the structure can be made more compact. The auxiliary near-beam first reflecting surface 22 and the auxiliary near-beam second reflecting surface 23 are sequentially disposed above the auxiliary near-beam light incident portion 21 from bottom to top, so that light rays converged by the auxiliary near-beam light incident portion 21 can be directly reflected by the auxiliary near-beam first reflecting surface 22 or reflected by the auxiliary near-beam first reflecting surface 22 to reach the auxiliary near-beam second reflecting surface 23, and then reflected by the auxiliary near-beam second reflecting surface 23 to reach the light emitting surface 3. The auxiliary low-beam first reflecting surface 22 is a plane, so that the outgoing direction of light can be better controlled, and more light can be ensured to be incident on the auxiliary low-beam second reflecting surface 23. The auxiliary near-light second reflecting surface 23 is a curved surface, so that the incident light can form an auxiliary near-light intermediate light shape after being reflected by the auxiliary near-light second reflecting surface 23.

Specifically, the edge of the auxiliary low-beam first reflective surface 22 close to the auxiliary low-beam second reflective surface 23 is formed with an auxiliary low-beam cut-off line structure 221 for forming an auxiliary low-beam cut-off line. Since the auxiliary low-beam cutoff line is a horizontal line and has no inflection point, it is not necessary to provide a secondary optical portion having a single focus corresponding thereto, i.e., a secondary light incident surface protruding toward the auxiliary low-beam first reflecting surface 22, and therefore, in order to facilitate the installation of the optical system of the vehicle lamp and to make the structure more compact, the auxiliary low-beam unit 2 and the light emitting surface 3 are preferably formed integrally, and may constitute an integral light guide member. At this time, as shown in fig. 13, the auxiliary low beam first reflecting surface 22 is integrated with the plane of the auxiliary low beam light incident portion 21, and the auxiliary low beam first reflecting surface 22 preferably extends upward from the plane of the auxiliary low beam light incident portion 21, so that the structure is more compact; a corner is provided at the upper end of the auxiliary low beam first reflecting surface 22, so that an auxiliary low beam cut line structure 221 is formed at the corner. Of course, the auxiliary low-beam unit 2 and the light emitting surface 3 may also be independently disposed, in this case, the auxiliary low-beam first reflecting surface 22 may be formed by disposing a light shielding plate, and the auxiliary low-beam second reflecting surface 23 may be formed by disposing a reflector, and the auxiliary low-beam first reflecting surface 22 and the auxiliary low-beam second reflecting surface 23 may also be reflecting surfaces formed by adopting other reflecting structures.

In the present embodiment, as shown in fig. 5, a part of the light collected by the auxiliary low-beam light incident portion 21 is incident on the auxiliary low-beam first reflection surface 22, and is reflected by the auxiliary low-beam first reflection surface 22 to the auxiliary low-beam second reflection surface 23, another part of the light is incident on the auxiliary low-beam cut-off line structure 221 on the edge of the auxiliary low-beam first reflection surface 22, and is incident on the auxiliary low-beam second reflection surface 23 after passing through the auxiliary low-beam cut-off line structure 221, and another part of the light is directly incident on the auxiliary low-beam second reflection surface 23, and the auxiliary low-beam second reflection surface 23 reflects the incident light to form an auxiliary low-beam intermediate light pattern having an auxiliary low-beam cut-off line, and reflects the light forming the auxiliary low-beam intermediate light pattern to the light emitting surface 3, and forms an auxiliary low-beam illumination light pattern having an auxiliary low-beam cut-off line after being projected by the light emitting surface 3.

Specifically, as shown in fig. 6 and 7, the light incident portion of the main low-beam unit 1 is a main low-beam light incident portion 11, the main low-beam light incident portion 11 includes a main low-beam first light incident surface 111, a main low-beam second light incident surface 112 and a main low-beam third reflection surface 113, the first reflection surface of the light guide structure of the main low-beam unit 1 is a main low-beam first reflection surface 12, the second reflection surface is a main low-beam second reflection surface 15, the light guide structure of the main low-beam unit 1 further includes a main low-beam first refraction surface 13 and a main low-beam second refraction surface 14, a portion of light rays converged by the main low-beam light incident portion 11 is incident on the main low-beam first reflection surface 12, the main low-beam first reflection surface 12 can refract incident light rays to the main low-beam second reflection surface 15 through the main low-beam first refraction surface 13 and the main low-beam second reflection surface 14, and the other portion of light rays directly converged by the main low-beam light incident portion 11 is refracted by the main low-beam first reflection surface 13 and the main low-beam second reflection surface 14 The main and low beam second refraction surfaces 14 sequentially refract and then irradiate the main and low beam second reflection surfaces 15; the primary and secondary light reflecting surfaces 15 can reflect the incident light to the light emitting surface 3.

In the present embodiment, by providing the main low beam first reflecting surface 12 and the main low beam second reflecting surface 15, the transmission direction of light can be better adjusted, so that a desired light shape can be better formed, and the structure can be more compact. The main near-beam first reflecting surface 12, the main near-beam first refracting surface 13, the main near-beam second refracting surface 14 and the main near-beam second reflecting surface 15 are sequentially arranged above the main near-beam light entering part 11 from bottom to top, so that light converged by the main near-beam light entering part 11 can be directly reflected or sequentially refracted to the main near-beam second reflecting surface 15 through the main near-beam first refracting surface 13 and the main near-beam second refracting surface 14 after being reflected by the main near-beam first reflecting surface 12, and is reflected to the light emitting surface 3 through the main near-beam second reflecting surface 15. Preferably, the primary and low-beam first reflecting surfaces 12, 13 are curved surfaces convex upward, the primary and low-beam second refracting surfaces 14 are curved surfaces convex downward, and the primary and low-beam second reflecting surfaces 15 are flat surfaces.

Specifically, the edge of the main low-beam first reflection surface 12 near the main low-beam first refraction surface 13 is formed with a main low-beam cut-off line structure 121 for forming a main low-beam cut-off line. Since the main low-beam cut-off line has an inflection point, it is necessary to provide a secondary light incident surface, i.e., a main low-beam second refracting surface 14, which is convex toward the main low-beam first reflecting surface 12, the main low-beam second refracting surface 14 and the main low-beam second reflecting surface 15 together form a secondary optical portion having a single focus, and accordingly, it is also necessary to provide a main low-beam first refracting surface 13 to form a primary light emitting surface, the main low-beam first refracting surface 13, the main low-beam first reflecting surface 12 and the main low-beam light incident surface 11 together form a primary optical portion of the vehicular lamp optical system, and therefore, when the main low-beam unit 1 is formed integrally with the light emitting surface 3, the main low-beam second refracting surface 14, the main low-beam second reflecting surface 15 and the light emitting surface 3 are preferably formed integrally to constitute an integral secondary light guide, the main low-beam light incident surface 11, the main low-beam first reflecting surface 12 and the main low-beam first refracting surface 13 are preferably formed integrally, the primary light guide member is integrated, and the relative position between the main near light illumination light shape and the auxiliary near light illumination light shape can be conveniently adjusted when the main near light unit 1 is matched with the auxiliary near light unit 2, namely, the dimming is convenient. As shown in fig. 15, when the main low-beam light incident portion 11, the main low-beam first reflecting surface 12 and the main low-beam first refracting surface 13 are connected into a whole, the main low-beam first reflecting surface 12 is connected into a whole with the plane of the main low-beam light incident portion 11, and the main low-beam first reflecting surface 12 is preferably formed by extending upward from the plane of the main low-beam light incident portion 11, so that the structure is more compact; also, a corner is provided at the upper end of the main low beam first reflecting surface 12, so that a main low beam cut line structure 121 is formed at the corner. Of course, main passing beam unit 1 and play plain noodles 3 also can be independent setting respectively, at this moment, can be through setting up the light screen in order to form main passing beam first plane of reflection 12 to and form through setting up the speculum main passing beam second plane of reflection 15, main passing beam first plane of refraction 13 and main passing beam second plane of refraction 14 can set up the suitable refraction structure of selection according to actual grading, for example, can form through setting up plano-convex lens main passing beam first plane of refraction 13, and form through setting up convex plano-convex lens main passing beam second plane of refraction 14.

In the present embodiment, as shown in fig. 8, a part of the light converged by the main and low-beam light incident portion 11 is incident on the main and low-beam first reflecting surface 12, reflected by the main and low-beam first reflecting surface 12 to the main and low-beam first refracting surface 13, refracted by the main and low-beam first refracting surface 13 to be incident on the main and low-beam second refracting surface 14, another part of the light is incident on the main and low-beam cut-off line structure 121 on the edge of the main and low-beam first reflecting surface 12, passes through the main and low-beam cut-off line structure 121 to be emitted, refracted by the main and low-beam first refracting surface 13 to be incident on the main and low-beam second refracting surface 14, and a part of the light is refracted by the main and low-beam first refracting surface 13 to be incident on the main and low-beam second refracting surface 14 to form a light pattern consistent with the light distribution of the main and low-beam light illuminating pattern, and projected by the main and low-beam second reflecting surface 15 to form a main and low-beam intermediate light pattern with the main and low-beam cut-beam, and is reflected to the light emitting surface 3 by the second reflection surfaces 15 of the main and near light. The main and low beam second reflecting surfaces 15 are flat surfaces, which only function to bend the light path and do not participate in light distribution, but the emergent direction of the emergent light of the main and low beam second refracting surfaces 14 is upward, so that the emergent light is emitted forward, and the light refracted by the main and low beam second refracting surfaces 14 is reflected by the main and low beam second reflecting surfaces 15 and then projected through the light emitting surface 3 for illumination, which can be matched with the auxiliary low beam unit 2, thereby reducing the front and rear sizes of the optical system of the vehicle lamp. Because main passing light second plane of reflection 15 does not participate in the grading, consequently also can not set up this main passing light second plane of reflection 15, with main passing light income light portion 11, main passing light first plane of reflection 12, main passing light first plane of refraction 13 and main passing light second plane of refraction 14 by setting up backward forward in proper order for the light after main passing light second plane of refraction 14 refraction can form main passing light intermediate light shape, and the light that forms main passing light intermediate light shape can directly form main light illumination passing light shape through the emergence face 3 emergence. In addition, the main and low beam second reflection surfaces 15 may also be curved surfaces, at this time, the main and low beam second reflection surfaces 15 participate in light distribution, the light refracted by the main and low beam second refraction surface 14 is emitted to the main and low beam second reflection surfaces 15, at this time, the light refracted by the main and low beam second refraction surface 14 cannot form a light shape with a specific shape, and further cannot form a light shape consistent with the light distribution of the main and low beam illumination light shape, and the main and low beam intermediate light shape can be formed after being reflected by the main and low beam second reflection surfaces 15, and then is projected by the light emitting surface 3 to form the main and low beam illumination light shape.

When the vehicle lamp optical system is used for a high beam module, the vehicle lamp optical system comprises a high beam unit, specifically, the light entering part of the high beam unit is a high beam light entering part, the high beam light entering part comprises a high beam first light entering surface, a high beam second light entering surface and a high beam third reflecting surface, the first reflecting surface of the light guide structure of the high beam unit is a high beam first reflecting surface, the second reflecting surface is a high beam second reflecting surface, a part of light rays converged by the high beam light entering part are incident to the high beam first reflecting surface, the high beam first reflecting surface can reflect the incident light rays to the high beam second reflecting surface, and the other part of light rays converged by the high beam light entering part are directly incident to the high beam second reflecting surface; the high-beam second reflecting surface can reflect the incident light to form a high-beam intermediate light shape, reflect the light forming the high-beam intermediate light shape to the light emitting surface 3, and form a high-beam illuminating light shape after being projected by the light emitting surface 3. The high beam incident part, the high beam first reflecting surface and the high beam second reflecting surface are sequentially arranged along the vertical direction, the high beam first reflecting surface is a plane, and the high beam second reflecting surface is a curved surface. Similarly, the high beam unit and the light exit surface 3 are preferably integrally formed to constitute an integral light guide. Certainly, the high beam unit and the light emitting surface 3 may also be separately and independently arranged, in this case, the high beam first reflecting surface may be formed by arranging a light shielding plate, and the high beam second reflecting surface may be formed by arranging a reflecting mirror, and the high beam first reflecting surface and the high beam second reflecting surface may also be reflecting surfaces formed by adopting other reflecting structures. In addition, the high beam unit can be a main high beam unit and an auxiliary high beam unit which have the same structure, the main high beam unit is suitable for forming a main high beam intermediate beam shape, the auxiliary high beam unit is suitable for forming an auxiliary high beam intermediate beam shape, the light forming the main high beam intermediate beam shape and the light forming the auxiliary high beam intermediate beam shape are projected through the light emitting surface 3 to form a main high beam illumination light shape and an auxiliary high beam illumination light shape, the main high beam illumination light shape and the auxiliary high beam illumination light shape are overlapped to form a complete high beam illumination light shape, and the light forming the high beam illumination light shape is projected to the front of the vehicle for illumination.

As another embodiment, the car light optical system further includes a signal light unit 5, the signal light unit 5 is disposed behind the light exit surface 3, the signal light unit 5 includes a signal light entrance surface 51 and a signal light reflection surface 52, and the signal light reflection surface 52 can reflect the light entering from the signal light entrance surface 51 to the light exit surface 3 and emit the light through the light exit surface 3 to realize a signal light function. The signal lamp functions that can be realized by the signal lamp unit 5 include functions of a daytime running lamp, a front position lamp, a turn signal lamp, and the like. Therefore, the signal lamp unit 5 and the lighting unit are combined together, the multiplexing of the signal lamp function and the lighting function can be realized, and a signal lamp independent of an optical system of the vehicle lamp is not required to be additionally arranged, so that the space volume occupied by the vehicle lamp is greatly reduced, and the vehicle lamp is more attractive in appearance; and the signal lamp unit 5 and the lighting unit share one light-emitting surface, so that the structure of the optical system of the vehicle lamp is more compact and the whole size is smaller.

Specifically, as shown in fig. 9 to 16, the vehicle lamp optical system includes an illumination unit group and a plurality of signal lamp units 5, the illumination unit group includes at least one main low-beam unit 1 and a plurality of auxiliary low-beam units 2, the main low-beam second refracting surface 14, the main low-beam second reflecting surface 15, the auxiliary low-beam units 2, and the signal lamp units 5 of the main low-beam unit 1 are integrally connected to the light emitting surface 3, and the main low-beam incident light portion 11, the main low-beam first reflecting surface 12, and the main low-beam first refracting surface 13 are integrally connected. As shown in fig. 17, the light emitting surface 3 is divided into two partial areas, i.e., a signal light area 31 located at the upper portion and a low beam area 32 located at the lower portion, and correspondingly, as shown in fig. 13 and 15, the signal light unit 5 is located above the lighting unit group, the emergent light of the signal light unit 5 is emitted through the signal light area 31 of the light emitting surface 3 to realize the signal light function, and the emergent light of the lighting unit group is emitted through the low beam area 32 of the light emitting surface 3 to realize the low beam illumination. Of course, the up-down position of the signal light region 31 and the low-beam region 32 can be switched, that is, the low-beam region 32 is located above the signal light region 31, of course, the signal light region 31 and the low-beam region 32 can also be arranged in the left-right direction, but it is ensured that the light emitted from the signal light region 31 and the light emitted from the low-beam region 32 do not interfere with each other, accordingly, the relative position of the lighting unit group and the signal light unit 5 can be adjusted according to the relative position of the signal light region 31 and the low-beam region 32, that is, the lighting unit group can be located above, on the left side or on the right side of the signal light unit 5, and when the lighting unit group is located above the signal light unit 5, accordingly, the light entering part. In addition, as can be seen from fig. 12, the light emitting surface 3 is curved forward and has a smaller curvature, so that the arrangement trend of the plurality of lighting units in the lighting unit group may be consistent with the extension trend of the light emitting surface 3, and accordingly, the plurality of signal lamp units 5 are arranged along the length direction of the light emitting surface 3, and the arrangement trend thereof may also be consistent with the extension trend of the light emitting surface 3, so as to form a strip-shaped signal lamp effect matching with the modeling surface. The signal light units 5 may be arranged at intervals, that is, adjacent signal light units 5 are not connected to each other, and of course, the signal light units 5 may also be arranged closely and adjacent signal light units 5 are connected to each other, as shown in fig. 9, 10, 12 and 18.

Preferably, the traffic light reflecting surface 52 is provided with a light diffusing structure 521, which can diffuse incident light to improve uniformity of lighting effect of the traffic light unit 5. Specifically, as shown in fig. 10 and 11, the light diffusing structure 521 is in a grid shape, but the light diffusing structure 521 may be other structures capable of diffusing light, for example, the light diffusing structure 521 is in a stripe shape or a sawtooth shape.

The invention provides a vehicle lamp module, which comprises the vehicle lamp optical system and a light source matched with the vehicle lamp optical system. As a specific embodiment, the vehicle lamp optical system includes an illumination unit group including at least one main low-beam unit 1 and a plurality of auxiliary low-beam units 2, and a plurality of signal lamp units 5, and correspondingly, the light source includes an illumination light source 4 cooperating with the main low-beam unit 1 and the auxiliary low-beam units 2, and a signal lamp light source 6 cooperating with the signal lamp units 5. As shown in fig. 14 and 16, the illumination sources 4 are disposed opposite to the first light incident surface and the second light incident surface of the light incident portion, so that as many light rays as possible are incident on the two light incident surfaces, and the number of the illumination sources 4 is the same as that of the illumination units. The number of the signal lamp light sources 6 is the same as that of the signal lamp units 5, and the signal lamp light sources 6 are arranged in one-to-one correspondence with the signal lamp light incident surface 51, so that light rays emitted by the signal lamp light sources 6 can enter the signal lamp light incident surface 51. The dynamic change function of the signal lamps such as breathing and water lamp can be realized by controlling the turning off and the brightness of the light source 6 of each signal lamp.

Through setting up car light optical system can realize the diversified design of appearance of the light-emitting window of car light.

The third aspect of the invention provides a vehicle lamp comprising the vehicle lamp module set of the second aspect.

Through setting up the car light module, the car light can realize the diversified design of modelling of light-emitting window.

A fourth aspect of the invention provides a vehicle including the lamp of the third aspect.

Through setting up the car light, the design of molding diversification can be realized to the vehicle, is favorable to improving the whole visual effect of automobile body and pleasing to the eye degree.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.

It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.

In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.