A LED bulb holder signal light for automobile

Abstract

The invention relates to an automotive LED lamp, in particular to an automotive LED bulb holder signal lamp. By adopting an optical solution of a single light source plus an inner lampshade, a lighting form of a relatively narrow light-emitting area can be achieved. The LED lamp comprises a light source and an inner lampshade, wherein the inner lampshade is arranged above the light source and maintained relative to the inner lampshade, and further comprises an inner lampshade concentrator, wherein the inner lampshade concentrator is arranged between the inner lampshade and the light source. After the light emitted by the light source is gathered by the inner lampshade concentrator, the light path is divided into two parts. One part of the light is refracted through the front center entrance surface of the inner lampshade concentrator and then irradiates the first side wall of the inner lampshade. The light passing through the first side wall is totally reflected and irradiates the corn kernel pattern on the surface of the inner lampshade. The other part of the light is refracted through the front center entrance surface of the inner lampshade concentrator and irradiates the second side wall of the inner lampshade. Two total reflections occur in the inner lampshade, and after being totally reflected from the second side wall to the third side wall of the inner lampshade, the corn kernel pattern on the surface of the inner lampshade is also irradiated.

Description

Technical Field

[0001] The invention relates to an LED lamp for automobile, in particular to an LED bulb holder signal lamp for automobile. Background Art

[0002] With the widespread use of LED light sources in automotive lamps, in addition to meeting the requirements of lighting regulations, more and more car lights are beginning to pursue unique and novel shapes, and the lighting methods of lamp functions are becoming more and more diverse. Currently, the two most commonly used lighting forms are: one is the combination of LED light sources and reflectors, such as Figure 1 As shown in the figure, the light emitted by the LED light source is irradiated onto the reflective surface, and the diffusion pattern on the reflective surface diffuses the light at a specific angle to achieve light distribution performance; the other is to use a combination of LED light source and thick-walled parts; as shown in the figure Figure 2 As shown, the light emitted by the LED light source is converged by the concentrator and then irradiated onto the front patterned surface and refracted out to achieve light distribution performance.

[0003] The above two light-emitting forms can only achieve a smaller light-emitting surface when using a single light source. When the light outlet area is large, a larger light-emitting area can only be achieved by increasing the number of LED particles. Summary of the invention

[0004] The present invention provides an LED bulb holder signal lamp for automobiles, which can realize a lighting form with a relatively narrow and long light output area by adopting an optical solution of a single light source plus an inner lampshade.

[0005] In order to solve the above problems, the specific solution created by the present invention is as follows: an automotive LED bulb holder signal light, comprising a light source and an inner lampshade, the inner lampshade being arranged above the light source and kept relative to it, and also comprising an inner lampshade concentrator, the inner lampshade concentrator being arranged between the inner lampshade and the light source, and the light emitted by the light source is gathered by the inner lampshade concentrator and the light path is divided into two parts, one part of the light is refracted through the front center entrance surface of the inner lampshade concentrator and then irradiates the first side wall of the inner lampshade, and the light passing through the first side wall is totally reflected and irradiates the corn kernel pattern on the surface of the inner lampshade; the other part of the light is refracted through the front center entrance surface of the inner lampshade concentrator and then irradiates the second side wall of the inner lampshade, and two total reflections occur in the inner lampshade, and after being totally reflected from the second side wall to the third side wall of the inner lampshade, it also irradiates the corn kernel pattern on the surface of the inner lampshade.

[0006] Preferably, the light source is an LED bulb holder type light source.

[0007] Preferably, the angle between the normal line of each point on the total reflection surface of the inner lampshade side wall and the optical axis is greater than 45°.

[0008] Preferably, the corn kernel pattern on the outer surface of the inner lampshade refracts the light irradiated thereon into the air, and the angle between the diffusion angle and the optical axis is within ±30°.

[0009] Preferably, the angle between the normal line of each point on the total reflection surface of the first side wall of the inner lampshade and the optical axis is 65±5°.

[0010] Preferably, the angle between the normal line of each point on the total reflection surface of the second side wall of the inner lampshade and the optical axis is 75±5°.

[0011] Preferably, the angle between the normal line of each point on the total reflection surface of the third side wall of the inner lampshade and the optical axis is 65±5°.

[0012] The LED bulb holder signal lamp for automobiles of the present invention has the following advantages:

[0013] 1. By adding an inner lampshade condenser at the front end of the inner lampshade, the scattered light emitted by the LED light source can be gathered to improve the efficiency of the optical system.

[0014] 2. The automotive LED bulb holder signal light of the present invention has a high energy utilization rate for light energy.

[0015] 3. The automotive LED bulb holder signal lamp of the present invention can realize the lighting of a narrow and long luminous area by a single LED.

[0016] 4. The lamp can be made narrow and long with low energy consumption and low manufacturing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a light path diagram of the prior art using a combination of an LED light source and a reflector;

[0018] Figure 2 It is a light path diagram of the prior art using a combination of an LED light source and a thick-walled part;

[0019] Figure 3 It is a structural schematic diagram of the LED bulb holder signal lamp for automobile of the present invention;

[0020] Figure 4 It is a cross-sectional schematic diagram of the LED bulb holder signal lamp for automobile of the present invention;

[0021] Among them, 1. light source, 2. inner lampshade, 3. inner lampshade concentrator, 4. front center entrance surface, 5. front center entrance cotton, 6. first side wall, 7. second side wall, 8. third side wall, 9. corn kernel pattern. DETAILED DESCRIPTION

[0022] Embodiment 1: A signal light of an LED bulb holder for automobile, comprising a light source 1 and an inner lampshade 2, wherein the inner lampshade 2 is arranged above the light source 1 and is kept opposite to the inner lampshade 2, and further comprising an inner lampshade concentrator 3, wherein the inner lampshade concentrator 3 is arranged between the inner lampshade 2 and the light source 1, and the light emitted by the light source 1 is gathered by the inner lampshade concentrator 3 and the light path is divided into two parts, one part of the light is refracted through the front center entrance surface 4 of the inner lampshade concentrator 3 and then irradiates the first side wall 6 of the inner lampshade 2, and the light passing through the first side wall 6 is totally reflected and irradiates the corn grain pattern 9 on the surface of the inner lampshade 2; the other part of the light The light is refracted through the front center entrance surface 5 of the inner lampshade concentrator 3 to the second side wall 7 of the inner lampshade 2, and two total reflections occur in the inner lampshade 2. After total reflection from the second side wall 7 to the third side wall 8 of the inner lampshade 2, it also illuminates the corn kernel pattern 9 on the surface of the inner lampshade 2; the light source 1 is an LED bulb holder type light source; the angle between the normal of each point on the total reflection surface of the side wall of the inner lampshade 2 and the optical axis is greater than 45°; the corn kernel pattern 9 on the outer surface of the inner lampshade 2 refracts the light irradiated thereon into the air, and its diffusion angle is within ±30° with the optical axis.

[0023] Embodiment 2: A signal light of an LED bulb holder for automobiles, comprising a light source 1 and an inner lampshade 2, wherein the inner lampshade 2 is arranged above the light source 1 and is kept opposite to the inner lampshade 2, and further comprising an inner lampshade concentrator 3, wherein the inner lampshade concentrator 3 is arranged between the inner lampshade 2 and the light source 1, and the light emitted by the light source 1 is gathered by the inner lampshade concentrator 3 and the light path is divided into two parts, one part of the light passes through the front center entrance surface 4 of the inner lampshade concentrator 3 and is refracted to irradiate the first side wall 6 of the inner lampshade 2, and the light passing through the first side wall 6 is totally reflected to irradiate the corn grain pattern 9 on the surface of the inner lampshade 2; the other part of the light passes through the front center entrance surface 4 of the inner lampshade concentrator 3 and is refracted to irradiate the first side wall 6 of the inner lampshade 2; the other part of the light passes through the front center entrance surface 4 of the inner lampshade concentrator 3 and is refracted to irradiate the first side wall 6 of the inner lampshade 2; the other part of the light passes through the front center entrance surface 4 of the inner lampshade concentrator 3 and is refracted to irradiate the corn grain pattern 9 on the surface of the inner lampshade 2; the other part of the light passes through the front center entrance surface 4 of the inner lampshade concentrator 3 and is refracted to irradiate the first side wall 6 ... 5 is refracted to the second side wall 7 of the inner lampshade 2, and two total reflections occur in the inner lampshade 2. After total reflection from the second side wall 7 to the third side wall 8 of the inner lampshade 2, it also irradiates the corn grain pattern 9 on the surface of the inner lampshade 2; the light source 1 is an LED bulb holder light source; the angle between the normal of each point on the total reflection surface of the side wall of the inner lampshade 2 and the optical axis is greater than 45°; the corn grain pattern 9 on the outer surface of the inner lampshade 2 refracts the light irradiated thereon into the air, and its diffusion angle and the angle between the optical axis are within ±30°; the angle between the normal of each point on the total reflection surface of the first side wall 6 of the inner lampshade 2 and the optical axis is 65±5°.

[0024] Embodiment 3: A signal lamp of an LED bulb holder for automobiles, comprising a light source 1 and an inner lampshade 2, wherein the inner lampshade 2 is arranged above the light source 1 and keeps opposite to the inner lampshade 2, and further comprising an inner lampshade concentrator 3, wherein the inner lampshade concentrator 3 is arranged between the inner lampshade 2 and the light source 1, and the light emitted by the light source 1 is gathered by the inner lampshade concentrator 3 and the light path is divided into two parts, one part of the light is refracted through the front center entrance surface 4 of the inner lampshade concentrator 3 and irradiates the first side wall 6 of the inner lampshade 2, and the light passing through the first side wall 6 is totally reflected and irradiates the corn grain pattern 9 on the surface of the inner lampshade 2; the other part of the light is refracted through the front center entrance surface 5 of the inner lampshade concentrator 3 and irradiates the second side wall 7 of the inner lampshade 2, and is totally reflected twice in the inner lampshade 2, and is totally reflected from the second side wall 7 to the third side wall 8 of the inner lampshade 2 and irradiates the corn grain pattern 9 on the surface of the inner lampshade 2. The light source 1 is an LED bulb holder type light source. The angle between the normal line of each point on the total reflection surface of the side wall of the inner lampshade 2 and the optical axis is greater than 45°; the corn grain pattern 9 on the outer surface of the inner lampshade 2 refracts the light irradiated thereon into the air, and the angle between its diffusion angle and the optical axis is within ±30°; the angle between the normal line of each point on the total reflection surface of the second side wall 7 of the inner lampshade 2 and the optical axis is 75±5°. The angle between the normal line of each point on the total reflection surface of the third side wall 8 of the inner lampshade 2 and the optical axis is 65±5°.

[0025] The present invention and its implementation methods are described above, which is not restrictive. What is shown in the specification is only one of the implementation methods of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it, without departing from the purpose of the invention, they can design structural methods and embodiments similar to the technical solution without creativity, which should all fall within the protection scope of the present invention.

Claims

1. A signal light with an LED bulb holder for automobile, comprising a light source (1) and an inner lampshade (2), characterized in that: The inner lampshade (2) is arranged above the light source (1) and is kept opposite to the inner lampshade (2), and also includes an inner lampshade concentrator (3). The inner lampshade concentrator (3) is arranged between the inner lampshade (2) and the light source (1). After the light emitted by the light source (1) is gathered by the inner lampshade concentrator (3), the light path is divided into two parts. One part of the light passes through the front center entrance surface (4) of the inner lampshade concentrator (3) and is refracted to the first side wall (6) of the inner lampshade (2). The light passing through the first side wall (6) is totally reflected and is irradiated to the corn grain pattern (9) on the surface of the inner lampshade (2); the other part of the light passes through the front center entrance surface (5) of the inner lampshade concentrator (3) and is refracted to the second side wall (7) of the inner lampshade (2). The light is totally reflected twice in the inner lampshade (2) and is totally reflected from the second side wall (7) to the inner lampshade (2). ) and then irradiates the corn grain pattern (9) on the surface of the inner lampshade (2); the light source (1) is an LED bulb holder type light source; the angle between the normal of each point on the total reflection surface of the side wall of the inner lampshade (2) and the optical axis is greater than 45°; the corn grain pattern (9) on the outer surface of the inner lampshade (2) refracts the light irradiated thereon into the air, and the angle between its diffusion angle and the optical axis is within ±30°; the angle between the normal of each point on the total reflection surface of the first side wall (6) of the inner lampshade (2) and the optical axis is 65±5°; the angle between the normal of each point on the total reflection surface of the second side wall (7) of the inner lampshade (2) and the optical axis is 75±5°; the angle between the normal of each point on the total reflection surface of the third side wall (8) of the inner lampshade (2) and the optical axis is 65±5°.

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