An inner lens for increasing the left and right irradiation angles of a backup light

Abstract

The utility model discloses an inner lens of increasing left and right irradiation angle of reversing light, including light source, light source sets up on reversing light circuit board for providing parallel light, and the inner lens sets up at parallel light position, and the emergent surface of inner lens is provided with continuous alternating convex pattern and concave pattern, and parallel light forms the uniform diffusion reversing light through the refraction of convex pattern and concave pattern, the utility model discloses setting convex pattern and concave pattern on the inner lens, and the light of light source forms the parallel light of irradiating towards the inner lens after reflection, and the parallel light forms the concave pattern refraction reversing light, convex pattern refraction reversing light and convex pattern side wall refraction reversing light through the refraction of concave pattern, arc convex pattern and convex pattern side wall respectively, and the concave pattern refraction reversing light, convex pattern refraction reversing light and convex pattern side wall refraction reversing light are accumulated to form the uniform irradiation, and the left and right diffusion angle of reversing light is greater than 50 DEG, and the utility model discloses improving the lighting effect of reversing light.

Description

Technical Field

[0001] This utility model belongs to the field of automotive lighting technology, specifically relating to an inner lens that increases the left and right illumination angles of a reversing light. Background Technology

[0002] In automotive lighting, reversing lights are key lighting components that ensure vehicle reversing safety. Their left and right illumination range must be greater than 45 degrees to ensure that the driver can clearly observe the road conditions on the left and right sides and reduce the safety risks caused by blind spots when reversing.

[0003] Existing reversing lights rely on the diffusion angle of the light source itself, or on the light being pre-diffused and then diffused again through a lens to cover the illumination range. However, when the light forms parallel light through a reflector or condenser, there is very little light at a large pre-diffuse angle, resulting in low illumination in areas above 45 degrees to the left and right of the reversing light, which affects the lighting effect. To address this, we propose an inner lens that increases the left and right illumination angle of the reversing light. Utility Model Content

[0004] The purpose of this invention is to provide an inner lens that increases the left and right illumination angle of a reversing light, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an inner lens for increasing the left and right illumination angles of a reversing light, comprising: A light source, which is mounted on the reversing light circuit board, is used to provide parallel light; An inner lens is disposed at the position of the parallel light. The exit surface of the inner lens is provided with continuously alternating convex and concave patterns. The parallel light is refracted through the convex and concave patterns to form a uniformly diffused reversing light.

[0006] Preferably, the light source is reflected by the arc-shaped reflective surface at the bottom of the inner lens or by a reflector to form parallel light illuminating the inner lens.

[0007] Preferably, the light source is an LED light source.

[0008] Preferably, the concave pattern is an arc-shaped concave pattern.

[0009] Preferably, the raised pattern includes an arc-shaped raised pattern and a raised pattern sidewall disposed on the outer side of the arc-shaped raised pattern.

[0010] Preferably, the convex pattern sidewall is gradually inclined upwards towards the arc-shaped convex pattern.

[0011] Preferably, the parallel light is refracted by the concave pattern, the arc-shaped raised pattern, and the raised pattern sidewall to form concave pattern refracted reversing light, raised pattern refracted reversing light, and raised pattern sidewall refracted reversing light, respectively.

[0012] Compared with the prior art, the beneficial effects of this utility model are: This invention features raised and concave patterns on an inner lens. Light generated by the light source is reflected to form parallel light illuminating the inner lens. A portion of this parallel light is diffused and refracted by the concave patterns, forming a lower-angle concave pattern reversing light. Another portion enters the sidewall of the raised pattern and is refracted out, forming a higher-angle concave pattern reversing light. A third portion of the parallel light is refracted from the arc-shaped raised pattern, forming a raised pattern reversing light. The sum of multiple concave, raised, and raised pattern reversing lights creates a uniformly illuminated reversing light with a lateral diffusion angle greater than 50°, thus improving the reversing light's illumination effect. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the cross-sectional structure of the inner lens in Example 1; Figure 2 This is a schematic diagram of the cross-sectional structure of the inner lens in Example 2; Figure 3 This is a schematic diagram of the refracted light path of the inner lens of this utility model; Figure 4 The diagram shows the reversing light pattern with increased left and right diffusion angles in this utility model.

[0014] In the diagram: 1. Light source; 2. Reversing light circuit board; 3. Parallel light; 4. Inner lens; 401. Raised pattern; 4011. Arc-shaped raised pattern; 4012. Raised pattern sidewall; 402. Concave pattern; 403. Arc-shaped reflective surface; 5. Reflector; 601. Concave pattern refracts reversing light; 602. Raised pattern refracts reversing light; 603. Raised pattern sidewall refracts reversing light. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Example 1: Please see Figure 1 and Figure 3The inner lens provided by this utility model for increasing the left and right illumination angle of the reversing light includes: Light source 1 is set on the reversing light circuit board 2 to provide parallel light 3. Light source 1 is reflected by the arc-shaped reflective surface 403 at the bottom of the inner lens 4 to form parallel light 3 that shines toward the inner lens 4. Light source 1 is an LED light source. The inner lens 4 is positioned at the location of the parallel light 3. The exit surface of the inner lens 4 is provided with continuously alternating convex patterns 401 and concave patterns 402. The parallel light 3 is refracted through the convex patterns 401 and concave patterns 402 to form a uniformly diffused reversing light. The concave pattern 402 is an arc-shaped concave pattern, and the convex pattern 401 includes an arc-shaped convex pattern 4011 and a convex pattern sidewall 4012 disposed on the outside of the arc-shaped convex pattern 4011. The convex pattern sidewall 4012 is gradually inclined towards the arc-shaped convex pattern 4011 from bottom to top. The parallel light 3 is refracted by the concave pattern 402, the arc-shaped convex pattern 4011 and the convex pattern sidewall 4012 to form the concave pattern refracting reversing light 601, the convex pattern refracting reversing light 602 and the convex pattern sidewall refracting reversing light 603, respectively.

[0017] Example 2: Please see Figure 2 and Figure 3 The inner lens provided by this utility model for increasing the left and right illumination angle of the reversing light includes: Light source 1 is set on the reversing light circuit board 2 to provide parallel light 3. Light source 1 is reflected by reflector 5 to form parallel light 3 that shines toward inner lens 4. Light source 1 is an LED light source. The inner lens 4 is positioned at the location of the parallel light 3. The exit surface of the inner lens 4 is provided with continuously alternating convex patterns 401 and concave patterns 402. The parallel light 3 is refracted through the convex patterns 401 and concave patterns 402 to form a uniformly diffused reversing light. The concave pattern 402 is an arc-shaped concave pattern, and the convex pattern 401 includes an arc-shaped convex pattern 4011 and a convex pattern sidewall 4012 disposed on the outside of the arc-shaped convex pattern 4011. The convex pattern sidewall 4012 is gradually inclined towards the arc-shaped convex pattern 4011 from bottom to top. The parallel light 3 is refracted by the concave pattern 402, the arc-shaped convex pattern 4011 and the convex pattern sidewall 4012 to form the concave pattern refracting reversing light 601, the convex pattern refracting reversing light 602 and the convex pattern sidewall refracting reversing light 603, respectively.

[0018] This invention features a raised pattern 401 and a concave pattern 402 on the inner lens 4. The light source 1 generates light, which, after reflection, forms parallel light 3 that shines towards the inner lens 4. A portion of the parallel light 3 is diffused and refracted left and right by the concave pattern 402. One portion forms a concave pattern refraction reversing light 601 with a lower left and right diffusion angle, while another portion enters the raised pattern sidewall 4012 and is refracted out from the raised pattern sidewall 4012 to form a raised pattern sidewall refraction reversing light 603 with a larger left and right diffusion angle. Another portion of the parallel light 3 is refracted out from the arc-shaped raised pattern 4011 to form a raised pattern refraction reversing light 602. The accumulation of multiple concave pattern refraction reversing lights 601, raised pattern refraction reversing lights 602, and raised pattern sidewall refraction reversing lights 603 forms a reversing light with uniform illumination and a left and right diffusion angle greater than 50°, thus improving the reversing light illumination effect.

[0019] like Figure 4 As shown, the reversing light spot of this utility model has an increased left and right diffusion angle, providing uniform illumination. The maximum diffusion angle reaches 53°, and the left and right side lights are evenly illuminated.

[0020] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An inner lens that increases the left and right illumination angle of a reversing light, characterized in that, include: Light source (1), the light source (1) is set on the reversing light circuit board (2) to provide parallel light (3); An inner lens (4) is positioned at the location of the parallel light (3). The exit surface of the inner lens (4) is provided with continuously alternating convex patterns (401) and concave patterns (402). The parallel light (3) is refracted by the convex patterns (401) and concave patterns (402) to form a uniformly diffused reversing light.

2. The inner lens for increasing the left and right illumination angle of a reversing light according to claim 1, characterized in that: The light source (1) is reflected by the arc-shaped reflective surface (403) at the bottom of the inner lens (4) or by the reflector (5) to form parallel light (3) that shines toward the inner lens (4).

3. The inner lens for increasing the left and right illumination angle of a reversing light according to claim 2, characterized in that: The light source (1) is an LED light source.

4. The inner lens for increasing the left and right illumination angle of a reversing light according to claim 1, characterized in that: The concave pattern (402) is an arc-shaped concave pattern.

5. An inner lens for increasing the left and right illumination angle of a reversing light according to claim 4, characterized in that: The raised pattern (401) includes an arc-shaped raised pattern (4011) and a raised pattern sidewall (4012) disposed on the outside of the arc-shaped raised pattern (4011).

6. An inner lens for increasing the left and right illumination angle of a reversing light according to claim 5, characterized in that: The raised pattern sidewall (4012) is gradually inclined from bottom to top toward the arc-shaped raised pattern (4011).

7. An inner lens for increasing the left and right illumination angle of a reversing light according to claim 6, characterized in that: The parallel light (3) is refracted by the concave pattern (402), the arc-shaped raised pattern (4011) and the raised pattern sidewall (4012) to form concave pattern refracted reversing light (601), raised pattern refracted reversing light (602) and raised pattern sidewall refracted reversing light (603), respectively.

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