Thick-wall light guide structure

Abstract

The utility model discloses a thick-wall light guide structure which comprises a thick-wall light guide body, a pattern face capable of diffusing light is arranged on the right side of the thick-wall light guide body, and a first total reflection face used for conducting total reflection on the light to reflect the light to the pattern face is arranged on the left side of the thick-wall light guide body. A light incidence part protruding upwards is integrally formed at the upper end of the left side of the thick-wall light guide body, a light condensation reflection cup body protruding upwards and corresponding to a light source is further integrally formed at the upper end of the thick-wall light guide body, and the light condensation reflection cup body is located beside the light incidence part and spaced. A reflecting layer is arranged on the inner wall of the condensation reflecting groove of the condensation reflecting cup body; the right side, facing the condensation reflection cup body, of the light inlet part is provided with light inlet diffusion patterns, and the left side of the light inlet part is provided with a second total reflection surface which corresponds to the first total reflection surface and is used for totally reflecting light passing through the light inlet part to the first total reflection surface. According to the utility model, the effect of high light emitting uniformity can be finally achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to car lamp accessory technical field, especially a thick wall light guide structure. BACKGROUND

[0002] The utility model discloses a kind of car lamp thick wall condenser light-emitting structures, with the authorization announcement No.CN207065463U of Chinese utility model patent discloses a kind of car lamp thick wall condenser light-emitting structures.The car lamp thick wall condenser light-emitting structure includes LED circuit board, LED particle, corner thick wall condenser;The inner end of the corner thick wall condenser has Fresnel pattern for generating parallel light, and corner has total reflection inclined plane;Corner thick wall condenser outer end surface has the pattern that can make light diffusion;The LED particle is fixed on LED circuit board, and with the position corresponding to the inner end of corner thick wall condenser.Car lamp thick wall condenser light-emitting structure can obtain more uniform lighting effect, avoids the LED particle feeling and lighting dark area problem brought by traditional design;Can effectively solve the problem that traditional direct reflection type condenser circuit board appearance is visible;Energy utilization rate is higher.

[0003] The above-mentioned car lamp thick wall condenser light-emitting structure still has the following deficiencies: the corner thick wall condenser in the car lamp thick wall condenser light-emitting structure only reflects light through a total reflection inclined plane, that is, after LED particle emits light, light is reflected once through total reflection inclined plane and then shoots out corner thick wall condenser, so that it only improves the uniformity of light to a certain extent, but because the number of light reflection is small, and the propagation distance of light is short, the uniformity of light is still lacking.In addition, the thickness of the car lamp thick wall condenser light-emitting structure is small, so that its length needs to be made long enough to improve the uniformity of light to a certain extent, but it cannot be applied to car lamp with limited length installation size space.

[0004] Therefore, the present inventors propose the following technical solutions. UTILITY MODEL CONTENTS

[0005] The utility model aims at overcoming the deficiencies of prior art, and provides a thick wall light guide structure.

[0006] In order to solve the above technical problems, the utility model adopts the following technical scheme: the thick wall light guide structure includes thick wall light guide main part, the thick wall light guide main part right side is provided with the pattern surface that can make light diffusion, and the thick wall light guide main part left side is provided with the first total reflection surface for total reflection of light to reflect light to the pattern surface, the thick wall light guide main part left side upper end is integrally formed with the light -entering portion that protrudes upwards, the thick wall light guide main part upper end is integrally formed with the light -reflecting cup body that protrudes upwards and corresponds with the light source, and the light -reflecting cup body is located the side of light -entering portion and forms interval, and the light -reflecting cup body's light -reflecting groove inner wall is provided with the reflection layer, the light -entering portion right side towards the light -reflecting cup body is provided with the light -entering diffusion pattern, and the light -entering portion left side is provided with the second total reflection surface corresponding with the first total reflection surface and is used for total reflection of light after passing through the light -entering portion to the first total reflection surface.

[0007] Further, in the above technical solution, the second total reflection surface lower end is connected with the second total reflection surface upper end to form a V-shaped structure.

[0008] Further, in the above technical solution, the reflection layer is an electroplated aluminum layer integrally fixed to the light -reflecting groove inner wall by electroplating.

[0009] Further, in the above technical solution, the light -reflecting groove is a smooth arc surface; or the light -reflecting groove is an arc groove formed by a plurality of light-reflecting facets.

[0010] Further, in the above technical solution, a portion of the thick wall light guide main part upper surface corresponding to the interval is further electroplated with an electroplated aluminum flat layer, the electroplated aluminum flat layer is connected with the electroplated aluminum layer, and the electroplated aluminum flat layer extends to the lower end of the light -entering diffusion pattern.

[0011] Further, in the above technical solution, the light -entering diffusion pattern includes a plurality of light -entering protrusions continuously distributed and vertically distributed.

[0012] Further, in the above technical solution, the first total reflection surface includes a plurality of first total reflection protrusions continuously distributed and obliquely distributed; the second total reflection surface includes a plurality of second total reflection protrusions continuously distributed and obliquely distributed and corresponding to the first total reflection protrusions.

[0013] Further, in the above technical solution, the pattern surface includes a plurality of protrusions arrayed and having convex arc surfaces, each row of protrusions is distributed in a stepped manner, and each column of protrusions is also distributed in a stepped manner.

[0014] Further, in the above technical solution, the number of light -reflecting cup bodies is a plurality, and adjacent two light -reflecting cup bodies are sequentially connected and distributed in a linear manner, and each light -reflecting cup body corresponds to a light source.

[0015] Further, in the above technical solution, the light source is an LED.

[0016] After the above technical solution, the utility model discloses the following beneficial effects compared with prior art: the utility model discloses in specific use, light source sends light, and is shot to the spotlight reflection cup body, and the spotlight reflection cup body gathers and reflects the light to the light -entering part, wherein, because the right side of the light -entering part towards the spotlight reflection cup body is provided with light -entering diffusion pattern, so when the light enters the light -entering part, will be scattered first by light -entering diffusion pattern, make the light when entering the light -entering part become more uniform, then the light after entering the light -entering part transmission to the second total reflection surface, by the second total reflection surface total reflection to the first total reflection surface to the light of the first total reflection surface again carries out the second total reflection to the pattern surface, in this way under the premise that the thick wall light guide main part length is short, can extend the light transmission distance, after the diffusion of the pattern surface again shoots out thick wall light guide main part, finally reach the effect that the light emitting uniformity is high. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the perspective view of the utility model;

[0018] Figure 2 It is Figure 1 The partial enlarged view of A part in it;

[0019] Figure 3 It is the perspective view of another angle of the utility model;

[0020] Figure 4 It is Figure 1 The partial enlarged view of A part in it;

[0021] Figure 5 It is the working principle diagram of the utility model. DETAILED DESCRIPTION

[0022] The utility model is further explained below in combination with specific embodiment and drawing.

[0023] See Figures 1-5As shown, it is a kind of thick wall light guide structure, it can be used to the car light in car, specifically, the thick wall light guide structure includes thick wall light guide body 1, thick wall light guide body 1 right side is provided with the pattern surface 12 capable of making light diffusion, and the first total reflection surface 11 for the total reflection of light is arranged on the left side of the thick wall light guide body 1 to reflect light to the pattern surface 12;The light inlet part 13 of the upward protruding is integrally formed on the left side upper end of the thick wall light guide body 1.Based on this, the utility model further increases the following design: the light-gathering reflection cup body 14 of the upward protruding and corresponding with light source 2 is integrally formed on the upper end of the thick wall light guide body 1, and the light-gathering reflection cup body 14 is located on the side of the light inlet part 13 and is formed with interval 10, and the reflection layer is arranged on the inner wall of the light-gathering reflection groove 141 of the light-gathering reflection cup body 14;The light inlet diffusion pattern 131 is arranged on the right side of the light-gathering reflection cup body 14 of the light inlet part 13, and the second total reflection surface 15 corresponding with the first total reflection surface 11 for the total reflection of light after the light inlet part 13 is arranged on the left side of the light inlet part 13.The utility model in specific use, light source 2 emits light, and is shot to the light-gathering reflection cup body 14, the light is gathered and is reflected to the light inlet part 13 by the light-gathering reflection cup body 14, wherein, since the light inlet diffusion pattern 131 is arranged on the right side of the light-gathering reflection cup body 14 of the light inlet part 13, when the light enters the light inlet part 13, the light will be scattered by the light inlet diffusion pattern 131 first, so that the light becomes more uniform when entering the light inlet part 13, then the light after entering the light inlet part 13 is transmitted to the second total reflection surface 15, the light is totally reflected to the first total reflection surface 11 by the second total reflection surface 15, and finally the light is totally reflected to the pattern surface 12 by the first total reflection surface 11 for the second time, so that the light transmission distance can be prolonged under the premise that the length of the thick wall light guide body 1 is short, the light is shot out of the thick wall light guide body 1 after being diffused by the pattern surface 12, and finally the effect of high light uniformity is achieved.

[0024] The lower end of the second total reflection surface 15 is connected with the upper end of the second total reflection surface 15 to form a V-shaped structure, which can timely reflect the light twice.

[0025] The reflection layer is an electroplated aluminum layer integrally fixed on the inner wall of the light-gathering reflection groove 141 by electroplating, which has excellent light reflection effect. The light-gathering reflection groove 141 is a smooth arc surface, or it is an arc-shaped groove formed by a plurality of light-reflecting facets, which has better reflection effect.

[0026] The part corresponding to the interval 10 in the upper end surface of the thick-wall light guide body 1 is also plated with a plated aluminum flat layer 16. The plated aluminum flat layer 16 is connected with the plated aluminum layer, and the plated aluminum flat layer 16 extends to the lower end of the light-incident diffusion pattern 131. In this way, the light can be prevented from directly entering the thick-wall light guide body 1 from top to bottom, and the light reflection concave groove 141 can reflect the light to the light-incident part 13.

[0027] The light-incident diffusion pattern 131 includes a plurality of light-incident convex teeth 101 which are continuously distributed and vertically distributed. The light-incident convex teeth 101 can scatter the incident light, that is, the light-incident convex teeth 101 receive the incident light through different surfaces, so that the light is refracted after entering the light-incident part 13, thereby achieving the purpose of scattering the light to improve the uniformity of the light.

[0028] The first total reflection surface 11 includes a plurality of first total reflection tooth surfaces 102 which are continuously distributed and obliquely distributed. The second total reflection surface 15 includes a plurality of second total reflection tooth surfaces 103 which are continuously distributed, obliquely distributed, and correspond to the first total reflection tooth surfaces 102. Through the design of the first total reflection tooth surfaces 102 and the second total reflection tooth surfaces 103, the uniformity of the light can be improved when the light is totally reflected.

[0029] The pattern surface 12 includes a plurality of convex blocks 121 which are arrayed and have convex arc surfaces. Each row of convex blocks 121 is distributed in a stepped manner, and each column of convex blocks 121 is also distributed in a stepped manner. The convex blocks 121 can achieve excellent diffusion effect and greatly enhance the uniformity of light emission.

[0030] The number of the light reflection cups 14 is multiple, and adjacent two light reflection cups 14 are sequentially connected and distributed in a linear manner. Each light reflection cup 14 corresponds to one light source 2, which meets the use purpose of multiple light sources.

[0031] The light source 2 is an LED.

[0032] In summary, the utility model discloses in specific use, light source 2 sends light, and is shot to the light collecting reflection cup body 14, and the light collecting reflection cup body 14 will light gather and reflect to the light inlet portion 13, wherein, because the light inlet portion 13 is provided with light inlet diffusion pattern 131 towards the right side of light collecting reflection cup body 14, so when the light enters the light inlet portion 13, will be first scattered by light inlet diffusion pattern 131, make the light entering the light inlet portion 13 become more uniform, then the light after entering the light inlet portion 13 transmission to the second total reflection surface 15, by the second total reflection surface 15 total reflection to the first total reflection surface 11, finally again by the first total reflection surface 11 the light is secondly total reflection to the pattern surface 12, in this way can extend the light transmission distance under the premise that the thick wall light guide main body 1 length is shorter, after the diffusion of pattern surface 12 again shot out thick wall light guide main body 1, finally reach the effect that the light emitting uniformity is high. In addition, because the light collecting reflection cup body 14 is integrally formed on the upper end of thick wall light guide main body 1, does not need to set up the reflection cup additionally, can simplify the structure, reduce the cost.

[0033] Of course, the above only for the specific embodiment of the utility model, and not to limit the utility model implementation range, all equivalent changes or modifications, which are made according to the structure, features and principles of the utility model application patent range, should be included in the utility model application patent range.

Claims

1. A thick-wall light guide structure, comprising a thick-wall light guide body (1) provided with a patterned surface (12) capable of diffusing light on the right side of the thick-wall light guide body (1), and a first total reflection surface (11) for totally reflecting light to the patterned surface (12) on the left side of the thick-wall light guide body (1); an upward protruding light inlet portion (13) is integrally formed on the upper end of the left side of the thick-wall light guide body (1), characterized in that a light-gathering reflection cup body (14) protruding upward and corresponding to a light source (2) is integrally formed on the upper end of the thick-wall light guide body (1), and is located beside the light inlet portion (13) and forms a gap (10), the inner wall of a light-gathering reflection groove (141) of the light-gathering reflection cup body (14) is provided with a reflective layer; the right side of the light inlet portion (13) towards the light-gathering reflection cup body (14) is provided with a light inlet diffusion pattern (131), and the left side of the light inlet portion (13) is provided with a second total reflection surface (15) corresponding to the first total reflection surface (11) and used for totally reflecting light after passing through the light inlet portion (13) to the first total reflection surface (11).

2. A thick-walled light guide structure according to claim 1, characterized in that: The lower end of the second total reflection surface (15) is connected to the upper end of the second total reflection surface (15) to form a V-shaped structure.

3. A thick-walled light guide structure according to claim 1, wherein: The reflective layer is an electroplated aluminum layer integrally fixed on the inner wall of the light-gathering reflection groove (141) by electroplating.

4. A thick-walled light guide structure according to claim 3, wherein: The light-gathering reflection groove (141) is a smooth arc surface; or the light-gathering reflection groove (141) is an arc groove formed by splicing a plurality of reflection facets.

5. A thick-walled light guide structure according to claim 3, wherein: The part of the upper surface of the thick-wall light guide body (1) corresponding to the gap (10) is also electroplated to form an electroplated aluminum flat layer (16), which is connected to the electroplated aluminum layer and extends to the lower end of the light inlet diffusion pattern (131).

6. A thick-walled light guide structure according to any one of claims 1-5, characterized in that: The light inlet diffusion pattern (131) comprises a plurality of light inlet protruding teeth (101) continuously distributed and vertically distributed.

7. A thick-walled light guide structure according to claim 6, wherein: The first total reflection surface (11) comprises a plurality of first total reflection protruding tooth surfaces (102) continuously distributed and obliquely distributed; the second total reflection surface (15) comprises a plurality of second total reflection protruding tooth surfaces (103) continuously distributed and obliquely distributed and corresponding to the first total reflection protruding tooth surfaces (102).

8. A thick-walled light guide structure according to claim 6, wherein: The patterned surface (12) comprises a plurality of bumps (121) arrayed and having convex arc surfaces on the outer surfaces, each row of bumps (121) is distributed in a stepped manner, and each column of bumps (121) is also distributed in a stepped manner.

9. A thick-walled light guide structure according to claim 6, wherein: The number of light-gathering reflection cup bodies (14) is multiple, and adjacent two light-gathering reflection cup bodies (14) are sequentially connected and distributed in a linear shape, each light-gathering reflection cup body (14) corresponds to one light source (2).

10. A thick-walled light guide structure according to claim 9, wherein: The light source (2) is an LED.

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