Ultra-short optical path uniform thick wall part and vehicle lamp thereof

Abstract

The utility model relates to the technical field of vehicle lamps, in particular to an ultra-short optical path uniform thick-wall part and a vehicle lamp thereof. The thick-wall piece comprises a light source, a long-strip-shaped light gathering piece, a refraction part and a light emitting part, the light source is provided with a light emitting direction, and the light source emits light in the light emitting direction; the long-strip-shaped light condensation piece comprises a light condensation long groove, and the light condensation long groove right faces the light emitting direction of the light source. The refraction part is arranged on the side, away from the light source, of the long condensation groove and provided with a refraction pattern face. The light emitting part is connected with the refraction part; wherein the refraction part refracts or reflects the light to the light emitting part. Through the arrangement of the long-strip-shaped light gathering piece, the refraction pattern face of the refraction part and the light emitting part, even lighting of the thick-wall piece within the short light path range is achieved, the space in the lamp is saved, and the problems of light emitting granular sensation and light emitting efficiency of the automobile lamp are effectively solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of car light, specifically, relates to a kind of super short light path uniform thick wall piece and its car light. BACKGROUND

[0002] The evolution of times brings unprecedented prosperity to automobile industry, and the rapid development of automobile industry makes people's requirements for automobile appearance modeling higher and higher.Car light, as an important part of the overall appearance of car, has also experienced the evolution from simple modeling to complex modeling highlighting personality.However, the complex modeling makes the space in the light smaller and smaller, and many traditional optical system designs are difficult to fully mix light in such a small space, so the lighting grain is obvious.Therefore, how to use shorter light path to achieve uniform visual effect has become the main research direction of design and developer.

[0003] At the same time, as the main application direction of LED car light, thick wall light guide is more and more used as car light modeling element in car light design, and its crystal clear visual effect has obtained the positive feedback of market.For thick wall optical system, when there is a larger internal space, light can be projected to the light emitting surface through standard backlight direct projection or backlight side projection form;When the longitudinal depth of car light is shallow, backlight side projection optical form is usually used, which increases a layer of inclined surface with pattern to achieve further light mixing purpose.But for the car light with ultra-shallow longitudinal space, the light path is limited, and such design structure still cannot obtain good lighting effect.Therefore, many manufacturers can only solve the problem by stacking LED lights or increasing the volume of car light, and both methods have other disadvantages.

[0004] First, when the longitudinal depth in the light is less than 40mm, backlight side projection scheme cannot effectively mix light even if inclined pattern surface is used, which leads to significant light emission grain;Second, stacking LED lights not only increases cost but also aggravates heat dissipation problem, and increasing the volume of LED light will damage the coordination of vehicle modeling;Third, conventional scheme needs to significantly increase the pattern diffusion angle to further improve uniformity, which leads to significant reduction of light emission efficiency. UTILITY MODEL CONTENT

[0005] The utility model solves the problem of how to realize uniform lighting of car light thick wall piece in short light path range and how to solve the problems of light emission grain and light emission efficiency of car light.

[0006] To solve the above problems, the utility model discloses the following technical scheme: a kind of ultra-short light path uniform thick-walled piece, for car light, ultra-short light path uniform thick-walled piece includes: light source, long strip light collector, refractive part and light outlet, light source is equipped with light outlet direction, light source emits light rays towards light outlet direction;Long strip light collector includes light collection long groove, light collection long groove is opposite the light outlet direction of light source arrangement;Refractive part is arranged at the side of light collection long groove away from light source, and refractive part is equipped with refractive pattern surface;Light outlet is connected with refractive part;Wherein, refractive part refracts or reflects light rays in light outlet.

[0007] Compared with prior art, the technical effects reached by adopting the technical scheme are as follows: first, through the cooperative design of long strip light collector and refractive part, the uniform lighting of thick-walled piece in short light path range is realized, which breaks through the limitation that traditional optical system needs more than 40mm light path to realize uniformity;Second, long strip light collector has no refractive limitation in longitudinal direction, so that light rays produce angle diffusion when entering light collector, and the arc wavy surface of refractive part and the front and rear surface patterns of light outlet effectively eliminate the particle feeling of light outlet and save the space in lamp.

[0008] Further, the bottom of light collection long groove is equipped with tapered convex strip, and the tapered convex strip is used for refracting light rays.

[0009] Compared with prior art, the technical effects reached by adopting the technical scheme are as follows: first, the tapered convex strip at the bottom of light collection long groove can refract the divergent light rays emitted by light source through geometric structure optimization, so that light rays propagate more concentratedly along main propagation direction, reduce invalid scattering and significantly improve light collection efficiency.

[0010] Second, the tapered convex strip makes the equivalent light path of light collection long groove in longitudinal depth direction be lengthened, so that higher illumination uniformity can be realized under limit light path, and the dependence of thick-walled piece on space depth is reduced.

[0011] Further, light collection long groove is equipped with arc inner wall, and the arc inner wall cooperates with tapered convex strip and is used for refracting light rays.

[0012] Compared with prior art, the technical effects reached by adopting the technical scheme are as follows: the tapered convex strip and arc inner wall form composite refractive surface, which can differentially process light rays with different incident angles: small-angle light rays form collimated light beam after being refracted through the vertex of convex strip, and large-angle light rays produce moderate lateral diffusion after being refracted through the side of convex strip, and the two realize dynamic light mixing in subsequent light path, so that light rays realize better light mixing effect before reaching light outlet, thereby effectively reducing the particle feeling of light outlet and improving the uniformity of light outlet of entire thick-walled piece.

[0013] Further, the light emitting part is provided with an arc-shaped light emitting wall, and the arc-shaped light emitting wall is provided with a front surface pattern.

[0014] Compared with the prior art, the technical effects achieved by the technical scheme are as follows: first, the curved surface structure of the arc-shaped light emitting wall and the front surface pattern perform secondary light mixing on the light, the light is further dispersed before being emitted through curved surface reflection and refraction, the problem of light spot concentration caused by short light path is reduced, and the overall uniformity is improved; second, the front surface pattern forms a microstructure array on the arc-shaped light emitting wall, the light is diffused laterally through refraction and diffraction, a wider viewing angle range is covered, and the insufficient uniformity caused by relying on single angle diffusion in the traditional scheme is avoided; third, the cooperative design of the arc-shaped light emitting wall and the front surface pattern makes the light be emitted at an optimized angle, reduces invalid scattering, improves the light emitting efficiency while maintaining the uniformity, and breaks through the bottleneck that uniformity and light efficiency are difficult to be considered in the traditional scheme.

[0015] Further, the light emitting part further includes a light emitting side wall, the light emitting side wall is arranged on the side surface of the arc-shaped light emitting wall, and the light emitting side wall is provided with a front side surface pattern.

[0016] Compared with the prior art, the technical effects achieved by the technical scheme are as follows: first, the light emitting side wall is arranged on the side surface of the arc-shaped light emitting wall and cooperates with the arc-shaped light emitting wall to form a relatively closed and continuous light emitting area. This makes the light not only be emitted from the arc-shaped light emitting wall, but also be emitted from the light emitting side wall on the side surface, thereby expanding the light emitting range of the entire thick-walled part. Moreover, the light emitting can be observed from different directions, the observable viewing angle range is significantly increased, and the use requirements of the vehicle lamp in different scenes are met; second, the front side surface pattern on the light emitting side wall cooperates with the front surface pattern on the arc-shaped light emitting wall. The front side surface pattern can refract and scatter the light propagating from the side surface, and further disperse and mix the light. In this way, the light at the edge and corner of the light emitting area can also be effectively processed, and the problem of light dark area or non-uniformity is avoided, and the uniformity of the light emitting of the entire thick-walled part is further improved.

[0017] Further, the ultra-short light path uniform thick-walled part is provided with a PCB board, and the light source is mounted on the PCB board.

[0018] Compared with the prior art, the technical effects achieved by the technical scheme are as follows: the integrated PCB board design simplifies the light source mounting structure and improves the heat dissipation performance and electrical stability.

[0019] Further, the light source is provided with a plurality of light sources, and the light sources are uniformly arranged on the PCB board.

[0020] Compared with the prior art, the technical effects reached by adopting the technical scheme are as follows: firstly, the multiple light sources are uniformly arranged to form a continuous light-emitting array, the overall brightness is improved through light intensity superposition effect, the brightness attenuation gradient of the single-point light source is eliminated, and the thick-walled part maintains the uniformity of illumination in a short light path; and secondly, the uniformly arranged light source matrix is designed in an integrated manner with the PCB, the compact structure is realized while the optical performance is maintained, the space of the vehicle lamp is saved, and the light decay problem caused by concentrated heat dissipation is avoided.

[0021] Further, the refractive pattern surface is an arc wave surface for refracting or reflecting light.

[0022] Compared with the prior art, the technical effects reached by adopting the technical scheme are as follows: firstly, the arc wave surface structure of the refractive pattern surface breaks through the short light path mixing limitation by continuously designing the curved surface to dynamically refract and reflect light in the longitudinal depth direction, so that the light can still achieve high uniformity under the limit light path; and secondly, the wave surface microstructure differentially processes light of different incident angles, low-angle light is refracted by the wave crest to form a collimated light beam, high-angle light is reflected by the wave trough to produce lateral diffusion, and the two form cross mixing light in the propagation process, effectively eliminating the light spot boundary caused by traditional single-angle diffusion.

[0023] The utility model also provides a vehicle lamp, the vehicle lamp includes: the super short light path uniform thick wall spare of any one above;

[0024] The connecting piece is arranged on the outer wall of the super short light path uniform thick wall piece, and the connecting piece is used for fixing the super short light path uniform thick wall piece.

[0025] Compared with the prior art, the technical effects reached by adopting the technical scheme are as follows: the modularized connection design improves the overall disassembly and assembly efficiency of the thick wall piece, facilitates the later maintenance and optical parameter adjustment of the vehicle lamp, and reduces the after-sales cost.

[0026] Further, the connecting piece includes an upper support and a lower support, the upper support is arranged on the outer side of the light source to fix the light source, and the lower support is arranged on the top of the refracting part to fix the refracting part.

[0027] Compared with the prior art, the technical effects reached by adopting the technical scheme are as follows: the upper support and the lower support independently support the light source module and the refracting module respectively, forming a double-support-point mechanical balance system to effectively avoid the decline of optical collimation caused by vibration. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 It is a structure schematic view of the super short light path uniform thick wall piece of the utility model embodiment;

[0029] Figure 2 It is a structure schematic view of the super short light path uniform thick wall piece without the connecting piece of the utility model embodiment;

[0030] Figure 3 is Figure 2 enlarged view of A in FIG.

[0031] Figure 4 is Figure 2 enlarged view of B in FIG.

[0032] Figure 5 is Figure 2 enlarged view of C in FIG.

[0033] Figure 6 is Figure 1 structure schematic view of another perspective of FIG.

[0034] Figure 7 is Figure 6 sectional schematic view of D-D in FIG.

[0035] Figure 8 is Figure 2 structure schematic view of another perspective of FIG.

[0036] Figure 9 is Figure 8 enlarged view of E in FIG.

[0037] Figure 10 isa structure schematic view of a PCB board of a super-short light path uniform thick-walled piece according to an embodiment of the present application;

[0038] Figure 11 is structure schematic view of yet another perspective of FIG. Figure 2

[0039] Figure 12 is light path diagram of a strip-shaped light collecting piece of a super-short light path uniform thick-walled piece in YZ direction according to an embodiment of the present application;

[0040] Figure 13 is light path diagram of a strip-shaped light collecting piece of a super-short light path uniform thick-walled piece in ZX direction according to an embodiment of the present application.

[0041] BRIEF DESCRIPTION OF DRAWINGS 100 - super-short light path uniform thick-walled piece; 1 - light source; 2 - strip-shaped light collecting piece; 3 - refraction part; 4 - light emitting part; 5 - light collecting long groove; 6 - conical convex strip; 7 - arc-shaped inner wall; 8 - arc-shaped light emitting wall; 9 - front surface pattern; 10 - light emitting side wall; 11 - front side surface pattern; 12 - PCB board; 13 - refraction pattern surface; 14 - connecting piece; 15 - upper support; 16 - lower support. DETAILED DESCRIPTION

[0042] In order to make the above objectives, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings.

[0043] Referring to Figure 10 and Figure 11 , the light emitting direction of the light source 1 is set as the X direction, the arrangement direction of the light source 1 is set as the Y direction, and the other direction perpendicular to the light emitting direction and the arrangement direction of the light source 1 is set as the Z direction.

[0044] Referring to Figures 1-13 , to solve the above problems, the embodiment adopts the following technical scheme: an ultrashort light path uniform thick-walled part 100 for a vehicle lamp, the ultrashort light path uniform thick-walled part 100 comprising: a light source 1, a long-strip-shaped light collecting part 2, a refracting part 3, and a light emitting part 4, the light source 1 being provided with a light emitting direction, the light source 1 emitting light rays toward the light emitting direction; the long-strip-shaped light collecting part 2 comprising a light collecting long groove 5, the light collecting long groove 5 being arranged opposite to the light emitting direction of the light source 1; the refracting part 3 being arranged on a side of the light collecting long groove 5 away from the light source 1, the refracting part 3 being provided with a refracting pattern surface 13; the light emitting part 4 being connected with the refracting part 3; wherein the refracting part 3 refracts or reflects the light rays to the light emitting part 4.

[0045] Firstly, through the cooperative design of the long-strip-shaped light collecting part 2 and the refracting part 3, the uniform lighting of the thick-walled part in the short light path range is realized, and the limitation that the traditional optical system needs a light path of more than 40 mm to realize uniformity is broken; secondly, the long-strip-shaped light collecting part 2 has no refractive limitation in the longitudinal direction, so that the light rays produce angle diffusion when entering the light collector, and the front and rear surface patterns of the refracting part 3 and the light emitting part 4 are matched, thereby effectively eliminating the particle feeling of the light emission and saving the space in the lamp; thirdly, the design of the refracting part 3 makes the light rays diverge outward in advance, reduces the requirement for the forward diffusion angle, improves the light emission efficiency while ensuring the uniformity, and avoids the light efficiency loss caused by the need to increase the pattern diffusion angle in the traditional scheme.

[0046] Specifically, referring to Figure 1 , Figure 2 and Figure 3 , the bottom of the light collecting long groove 5 is provided with a tapered protrusion 6, and the tapered protrusion 6 is used for refracting the light rays.

[0047] Firstly, the tapered protrusion 6 at the bottom of the light collecting long groove 5 can refract the divergent light rays emitted by the light source 1 through geometric structure optimization, so that the light rays propagate more concentratedly along the main propagation direction, reducing invalid scattering and significantly improving the light collecting efficiency.

[0048] Secondly, the tapered protrusion 6 makes the equivalent light path of the light collecting long groove 5 in the longitudinal depth direction longer, so that higher light illumination uniformity can still be realized under the limit light path, and the dependence of the thick-walled part on the space depth is reduced.

[0049] Specifically, referring to Figure 2 and Figure 3 , the light collecting long groove 5 is provided with an arc-shaped inner wall 7, and the arc-shaped inner wall 7 is matched with the tapered protrusion 6 and used for refracting the light rays.

[0050] The conical protrusions 6 and the arc-shaped inner wall 7 form a compound refractive surface, which can differentially process light rays with different incident angles: small-angle light rays are refracted through the protrusion apex to form a collimated light beam, and large-angle light rays are refracted through the protrusion side to produce moderate lateral diffusion. The two achieve dynamic light mixing in the subsequent optical path, so that the light rays achieve better light mixing effect before reaching the light-emitting part 4, thereby effectively reducing the graininess of the light emission and improving the uniformity of the light emission of the entire thick-walled part.

[0051] It is explained that, for the optical system of a thick-walled part, the longitudinal depth required for the traditional optical scheme to meet uniform lighting is usually greater than 40 mm. For example, in the present embodiment, the maximum longitudinal depth is 75 mm, and uniform lighting can be achieved; the minimum longitudinal depth is 35 mm, which is less than the conventional longitudinal depth. For thick-walled parts with a shallow longitudinal depth, it is usually necessary to increase the pattern curvature to sacrifice part of the optical efficiency to achieve uniformity. However, for a super-shallow longitudinal depth of 35 mm, it is difficult to achieve uniformity in the Y direction by simply increasing the pattern curvature. It is explained again that, referring to Figure 12 and Figure 13 , in the traditional backlight side-throw thick-walled system, light rays are integrated into collimated light by a single condenser unit and propagate along the Z direction, are reflected to the X direction by a 45° oblique pattern surface, and propagate in the X direction at the same time, completing preliminary light mixing between the condenser units. Then, the light is emitted from the front surface arc pattern of the thick-walled light guide system to complete secondary light mixing. For a super-shallow car lamp, it is difficult to achieve sufficient light mixing in a short distance by two pattern surfaces, and it is easy to appear uneven at the junction of each condenser unit. The long-strip-shaped condenser 2 provided in the present embodiment has the same effect as the circular condenser in the longitudinal depth direction, refracting the light rays into collimated light; in the Y direction, it does not limit the direction of light refraction, so that the light rays entering the condenser have a certain dispersion angle, achieving preliminary light mixing between each condenser unit and contributing to the uniformity of the overall car lamp, and then achieving good uniformity through the modulation of the two pattern surfaces.

[0052] Specifically, referring to Figure 2 , Figure 4 and Figure 5 , the light-emitting part 4 is provided with an arc-shaped light-emitting wall 8, and the arc-shaped light-emitting wall 8 is provided with a front surface pattern 9.

[0053] Firstly, the curved surface structure of the arc-shaped light-emitting wall 8 and the front surface pattern 9 perform secondary light mixing on the light, further dispersing the light before emission through curved reflection and refraction, reducing the problem of light spot concentration caused by short light path, and improving overall uniformity; secondly, the front surface pattern 9 forms a microstructure array on the arc-shaped light-emitting wall 8, which spreads the light laterally through refraction and diffraction, covering a wider viewing angle range and avoiding the insufficient uniformity caused by relying on single-angle diffusion in traditional solutions; thirdly, the cooperative design of the arc-shaped light-emitting wall 8 and the front surface pattern 9 makes the light emit at an optimized angle distribution, reducing ineffective scattering, improving light efficiency while maintaining uniformity, and breaking through the bottleneck of balancing uniformity and light efficiency in traditional solutions.

[0054] Again, in general, in order to maximize light efficiency and meet regulations, the design of the pattern surface tries to make the light hit the normal viewing angle as much as possible, and then spread to both sides through the action of the pattern surface. The uniformity of the outer viewing angle usually has to be sacrificed. The present embodiment uses the long strip-shaped light collector 2 and the refractive pattern surface 13 of the refractive part 3 to make some light hit the outer side when reaching the horizontal direction, so that the light hitting the normal direction does not need to diffuse through a large angle of the arc-shaped pattern, and the uniform transition from the normal viewing angle to the outer viewing angle can also be achieved, thereby maximizing the optical efficiency.

[0055] Specifically, referring to Figure 2 , Figure 4 and Figure 5 , the light-emitting part 4 further comprises a light-emitting side wall 10, which is arranged on the side surface of the arc-shaped light-emitting wall 8, and the front side pattern 11 is arranged on the light-emitting side wall 10.

[0056] Firstly, the light-emitting side wall 10 is arranged on the side surface of the arc-shaped light-emitting wall 8 and cooperates with the arc-shaped light-emitting wall 8 to form a relatively closed and continuous light-emitting area. This makes the light not only emit from the arc-shaped light-emitting wall 8, but also emit from the light-emitting side wall 10 on the side, thereby expanding the light-emitting range of the entire thick-walled part. Moreover, the light can be observed from different directions, significantly increasing the observable viewing angle range and meeting the use requirements of the vehicle lamp in different scenes; secondly, the front side pattern 11 on the light-emitting side wall 10 cooperates with the front surface pattern 9 on the arc-shaped light-emitting wall 8. The front side pattern 11 can refract and scatter the light propagating from the side, further dispersing and mixing the light. In this way, the light can also be effectively processed in the edge and corner parts of the light-emitting area, avoiding the occurrence of light dark areas or unevenness, and further improving the uniformity of the light emission of the entire thick-walled part.

[0057] Specifically, referring to Figure 10 , the ultra-short light path uniform thick-walled part 100 is provided with a PCB board 12, and the light source 1 is installed on the PCB board 12.

[0058] The integrated PCB 12 simplifies the mounting structure of the light source 1, improves the heat dissipation performance and electrical stability.

[0059] Specifically, referring to Figure 6 、 Figure 7 and Figure 10 , the light source 1 is provided with multiple light sources 1, which are uniformly arranged on the PCB 12.

[0060] For example, the light source 1 adopts LED particles, which are uniformly arranged on the PCB 12 with a particle spacing of 8mm. The maximum distance between the light source 1 and the light emitting part 4 is 75mm, and the minimum distance is 35mm, and the distance gradually changes.

[0061] Firstly, the multiple light sources 1 are uniformly arranged to form a continuous light-emitting array, which improves the overall brightness through the light intensity superposition effect, and eliminates the brightness decay gradient of the single-point light source 1, so that the thick-walled part maintains the uniformity of illumination in a short light path. Secondly, the uniformly arranged light source 1 matrix and the PCB 12 are integrated and designed, which realizes compact structure while maintaining optical performance, saves car light space, and avoids the light decay problem caused by concentrated heat dissipation.

[0062] Specifically, referring to Figures 6-9 , the refractive pattern surface 13 is an arc-shaped wave surface for refracting or reflecting light.

[0063] For example, the refractive pattern surface 13 is a continuous arc in the Z direction and a stepped arc in the Y direction.

[0064] Firstly, the arc-shaped wave surface structure of the refractive pattern surface 13 is designed through a continuous curved surface, which dynamically refracts and reflects light in the longitudinal depth direction, so that the light can still achieve high uniformity under the limit light path, breaking through the limit of short light path mixing; Secondly, the wave surface microstructure differentiates the light with different incident angles, the low-angle light is refracted by the wave crest to form a collimated light beam, and the high-angle light is reflected by the wave trough to produce lateral diffusion, and the two form cross-mixing in the propagation process, effectively eliminating the spot boundary caused by traditional single-angle diffusion.

[0065] Referring to Figure 7 and Figure 12 、 Figure 13The light emitted by the LED particles enters the vehicle lamp through the long strip light collecting piece 2 of the thick wall piece, and from the ZX direction, the light propagates in the Z direction as the main direction through refraction and total internal reflection of the light entrance surface, and in the YZ direction, the light has two paths, path 1 is light with a small incidence angle, which is refracted to the collimation direction through the light entrance surface; path 2 is light with a large incidence angle, because the long strip light collecting piece 2 is not limited in the Y direction, the light is refracted into the long strip light collecting piece 2 with a certain angle, and the light is preliminarily dispersed in the Y direction, reaches the refraction part 3, and for the light passing through the refraction part 3, from the ZX direction, the light in the Z direction as the main direction is totally reflected to the positive direction through the inclined continuous circular arc surface, and is slightly scattered upward and downward; in the YZ direction, the light collimated and propagated in path 1 is reflected to the positive direction through the refractive pattern surface 13, and is slightly scattered, and the light in path 2 with a certain scattering angle is further scattered through the Y-direction stepped circular arc pattern of the refraction part 3, at this time, the main direction of the light propagation is the outside, and the light is emitted from the front side pattern 11 of the light exit part 4, so that the side pattern is efficiently lighted. From the outside at a large angle, the brightness of the front surface pattern 9 and the front side pattern 11 is balanced, and the effect of visual uniformity is achieved.

[0066] Referring to Figure 1 、 Figure 6 and Figure 7 The embodiment also provides a vehicle lamp, comprising the ultrashort optical path uniform thick wall piece 100 according to any one of the above.

[0067] The connecting piece 14 is arranged on the outer wall of the ultrashort optical path uniform thick wall piece 100, and the connecting piece 14 is used for fixing the ultrashort optical path uniform thick wall piece 100.

[0068] The modularized connection design improves the overall disassembly efficiency of the thick wall piece, facilitates the later maintenance and optical parameter adjustment of the vehicle lamp, and reduces the after-sales cost.

[0069] Specifically, the connecting piece 14 comprises an upper support 15 and a lower support 16, the upper support 15 is arranged on the outside of the light source 1 to fix the light source 1, and the lower support 16 is arranged on the top of the refraction part 3 to fix the refraction part 3.

[0070] The upper support 15 and the lower support 16 independently support the light source 1 module and the refraction module respectively, form a double support point mechanical balance system, and effectively avoid the decrease of optical collimation caused by vibration. Although the utility model discloses as above, the utility model is not limited to this. Any person skilled in the art, without departing from the spirit and scope of the utility model, can make various changes and modifications, therefore the protection scope of the utility model should be limited by the range defined in the claims.

Claims

1. An ultrashort light path uniform thick walled piece, characterized by, The super-short light path uniform thick wall piece is used for a vehicle lamp and comprises: a light source (1) provided with a light emitting direction, the light source (1) emitting light rays towards the light emitting direction; a long strip-shaped light collecting piece (2) comprising a light collecting long groove (5) arranged opposite to the light emitting direction of the light source (1); a refracting part (3) arranged on a side of the light collecting long groove (5) away from the light source (1), the refracting part (3) being provided with a refracting pattern surface (13); a light emitting part (4) connected with the refracting part (3); wherein the refracting part (3) refracts or reflects the light rays to the light emitting part (4).

2. The ultra-short light path uniform thick walled piece of claim 1, wherein, The bottom of the light collecting long groove (5) is provided with a tapered convex strip (6) for refracting the light rays.

3. The ultra-short light path uniform wall thickness piece of claim 2, wherein, The light collecting long groove (5) is provided with an arc-shaped inner wall (7) cooperating with the tapered convex strip (6) for refracting the light rays.

4. The ultra-short light path uniform thick walled piece of claim 1 wherein, The light emitting part (4) is provided with an arc-shaped light emitting wall (8) provided with a front surface pattern (9).

5. The ultra-short light path uniform wall thickness piece of claim 4, wherein, The light emitting part (4) further comprises a light emitting side wall (10) arranged on a side of the arc-shaped light emitting wall (8), the light emitting side wall (10) being provided with a front side pattern (11).

6. The ultra-short light path uniform thick walled piece of claim 1 wherein, The super-short light path uniform thick wall piece is provided with a PCB (12), the light source (1) being mounted on the PCB (12).

7. The ultra-short light path uniform wall thickness piece of claim 6, wherein, The light source (1) is provided with a plurality of light sources (1) arranged uniformly on the PCB (12).

8. The ultra-short light path uniform thick walled piece of claim 1 wherein, The refracting pattern surface (13) is an arc-shaped wave surface for refracting or reflecting the light rays.

9. A vehicle lamp characterized by The vehicle lamp comprises the super-short light path uniform thick wall piece according to any one of claims 1-8. A connecting part (14) is arranged on an outer wall of the super-short light path uniform thick wall piece, the connecting part (14) being used for fixing the super-short light path uniform thick wall piece.

10. The vehicle light of claim 9, wherein, The connecting part (14) comprises: an upper support (15) arranged on an outer side of the light source (1) for fixing the light source (1); a lower support (16) arranged on a top of the refracting part (3) for fixing the refracting part (3).

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