Combined signal tail lamp

Abstract

A combined signal tail lamp is characterized in that a first optical system is arranged in the middle of a lamp body, one or more annularly-arranged second optical systems are arranged on the periphery of the first optical system, each second optical system sequentially comprises a second light source, a second light homogenizing plate and a second lens in the light emitting direction, and each second lens is annular and comprises a light inlet face, a reflecting face and a light outlet face; the light-emitting surface is located on one side opposite to the reflecting surface, the light-emitting surface is in a step shape and comprises a plurality of step surfaces with different heights, the adjacent step surfaces are connected through a connecting surface, the step surfaces are located above the light-in surface, optical textures for scattering light are arranged on the step surfaces, and the connecting surface is a fully reflecting surface. The principle of the utility model is as follows: the reflecting surface and the connecting surface of the second lens are fully reflecting surfaces, thereby improving the light-emitting brightness of the step surface and reducing the influence of stray light on the light-emitting of the step surface; the step surfaces have different heights and are mutually staggered, and when the step surfaces emit light, the whole light emitting surface forms a suspension stereoscopic impression.

Description

Technical Field

[0001] This utility model relates to the field of automotive lighting technology, and in particular to a combination signal taillight. Background Technology

[0002] Combination signal lights can achieve multiple signal light functions. For example, a combination signal light for automobiles with Chinese patent announcement number CN209856980U includes a mirror, a rear shell, a bracket, a lens, and a circuit board with LED light sources. The mirror is installed at the light outlet of the rear shell, and the mirror and the rear shell are combined to form a sealed cavity. The circuit board with LED light sources is installed on the mounting position formed at the bottom of the rear shell. The lens is installed between the mirror and the rear shell through the bracket and is located in front of the LED light sources. Three sets of LED light sources are horizontally arranged on the circuit board. These three sets of LED light sources correspond to daytime running lights, position lights, and turn signals, respectively. The lenses are Fresnel lenses, and the number of lenses is consistent with the number of LED light sources. The three lenses are installed between the mirror and the rear shell through three lens mounting positions on the bracket, forming a stepped structure and located in front of the three sets of LED light sources. That is, one lens is inserted into one lens mounting position and corresponds to one set of LED light sources. The shape and size of each lens are consistent with the set of LED light sources it corresponds to. Each lens focuses the light emitted by its corresponding set of LED light sources to realize the functions of daytime running lights, position lights, and turn signals, respectively. Existing traffic light lenses all emit light from the entire surface, lacking a three-dimensional effect. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a combined signal taillight in which the light-emitting surface of the second lens of the second optical system is stepped and the light-emitting surface has a three-dimensional effect.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is: a combined signal taillight, including a lamp body and a cover that cooperates with the lamp body. A first optical system is provided in the middle of the lamp body, and a second optical system arranged in one or more rings is provided around the first optical system. The second optical system includes a second light source, a second light-diffusing plate, and a second lens in sequence according to the light output direction. The second light source includes a plurality of second LED beads. The second lens is ring-shaped and includes an incident surface, a reflective surface, and an output surface. The output surface is located on the opposite side of the reflective surface. The output surface is stepped and includes a plurality of stepped surfaces with different heights. Adjacent stepped surfaces are connected by a connecting surface. The stepped surface is located above the incident surface and has optical textures that disperse light. The connecting surface is a total reflection surface. The principle of this utility model is that the reflective surface and the connecting surface of the second lens are both total reflection surfaces, which can improve the brightness of the light output from the stepped surface and reduce the influence of stray light on the light output from the stepped surface. Each stepped surface has a different height and is staggered with each other. When the stepped surface emits light, the entire output surface forms a floating three-dimensional effect.

[0005] As an improvement, the cross-section of the second lens is triangular, with the bottom surface of the second lens being the incident surface, the outer side of the second lens being the reflecting surface, and the inner side of the second lens being the emitting surface.

[0006] As an improvement, the angle between the connecting surface and the incident light surface is 70~90°.

[0007] As an improvement, the second light-diffusing plate is placed close to the light-incident surface of the second lens.

[0008] As an improvement, the second LED beads are distributed according to the shape of the light incident surface of the lens.

[0009] As an improvement, two second optical systems with different radii are provided.

[0010] As an improvement, a third optical system is provided between the two second optical systems. The third optical system includes a third light source and a third lens in sequence according to the light emission direction. The third light source includes a number of third LED beads. The third lens is ring-shaped and is composed of a number of third lens units that correspond one-to-one with the third LED beads.

[0011] As an improvement, the first optical system includes a first light source and a first lens in sequence according to the light emission direction. The first light source includes a plurality of first LED beads, and the first lens is composed of a plurality of first lens units that correspond one-to-one with the first LED beads.

[0012] As an improvement, a first annular frame is provided between the first optical system and the inner ring second optical system to support the first lens and press the inner ring second lens; a second annular frame is provided between the inner ring second optical system and the outer ring second optical system to support the inner ring second lens, support the third lens and press the outer ring second lens.

[0013] As an improvement, the first LED bead, the second LED bead, and the third LED bead are mounted on a lamp plate, which is fixed to the lamp body by bolts. The first and second ring frames are snap-fitted to the lamp plate.

[0014] The beneficial effects of this utility model compared with the prior art are:

[0015] Both the reflecting surface and the connecting surface of the second lens are total reflection surfaces, which can improve the brightness of the light emitted from the stepped surface and reduce the impact of stray light on the light emitted from the stepped surface; each stepped surface has a different height and is staggered from each other, so when the stepped surface emits light, the entire light-emitting surface forms a floating three-dimensional effect. Attached Figure Description

[0016] Figure 1 This is a diagram showing the arrangement of the optical system on the lamp body.

[0017] Figure 2 This is an exploded view of the present invention.

[0018] Figure 3 This is a cross-sectional view of the present invention.

[0019] Figure 4 This is the optical path diagram of the second optical system. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] like Figure 1 , 2 As shown, a combined signal taillight includes a lamp body 4, a cover 7 that cooperates with the lamp body 4, and several optical systems, each of which can form a signal light. The optical systems include a first optical system 1 located in the middle of the lamp body 4 that emits light from a forming surface, an inner ring second optical system 2 surrounding the first optical system 1, a third optical system 3 surrounding the inner ring second optical system 2, and an outer ring second optical system 2 surrounding the third optical system 3. The inner ring optical system 2 and the outer ring optical system 2 have the same structure and principle, and are collectively referred to as the second optical system 2 below.

[0022] like Figure 2 , 3 As shown, the first optical system 1 includes a first light source and a first lens 11 in sequence according to the light emission direction. The first light source includes a plurality of first LED beads 12. The first lens 11 is composed of a plurality of first lens units corresponding one-to-one with the first LED beads. The first lens 11 is surface-emitting and its surface is provided with corn kernel optical texture.

[0023] like Figure 2 , 3 As shown, the third optical system 3 includes a third light source and a third lens 31 in sequence according to the light emission direction. The third light source includes a number of third LED beads 32. The third lens 31 is ring-shaped and is composed of a number of third lens units that correspond one-to-one with the third LED beads 32. The third lens 31 emits light from a ring surface and has a number of optical stripes on its surface.

[0024] like Figures 2 to 4As shown, the second optical system 2 includes, in sequence according to the light emission direction, a second light source, a second light-diffusing plate 22, and a second lens 21. The second lens 21 includes an incident surface 211, a reflecting surface 213, and an emitting surface 212. The emitting surface 212 is located on the opposite side of the reflecting surface 213. The cross-section of the second lens 21 is approximately triangular. The bottom surface of the second lens 21 is the incident surface 211, the outer side of the second lens 21 is the reflecting surface 213, and the inner side of the second lens 21 is the emitting surface 212. In this embodiment, the second lens 21 is annular and can be designed according to the shape of the lamp body 4. The emitting surface 212 is stepped, comprising several stepped surfaces 2121 with different heights, connected by a connecting surface. The second lens 21 is connected to the second lens 21 via a step surface 2121 located above the incident light surface 211. The number of step surfaces 2121 is designed as needed. The step surface 2121 has optical textures that disperse light, such as vertical textures or corn kernel textures. The connecting surface 2122 is a total reflection surface 213. The angle between the connecting surface 2122 and the incident light surface 211 is 70~90°. After the light enters the second lens 21 from the incident light surface 211, part of the light exits directly from the step surface 2121, and the other part of the light exits from the step surface 2121 after being reflected by the reflection surface 213 and the connecting surface 2122. The second light-diffusing plate 22 is closely attached to the incident light surface 211 of the second lens 21. The shape of the second light-diffusing plate 22 can be similar to the shape of the incident light surface 211. The second light-diffusing plate 22 can disperse the light from the LED beads 7, making the light output from the second lens 21 more uniform. The second light source includes a plurality of second LED beads 23, which are distributed according to the shape of the light incident surface 11 of the second lens 21. The reflective surface 213 and the connecting surface 2122 of the second lens 21 are both total reflection surfaces, which can improve the light output brightness of the stepped surface 2121 and reduce the influence of stray light on the light output of the stepped surface 2121; each stepped surface 2121 has a different height and is staggered with each other, so when the stepped surface 2121 emits light, the entire light output surface 212 forms a floating three-dimensional effect.

[0025] like Figure 2 , 3 As shown, a first annular frame 5 is provided between the first optical system 1 and the inner ring second optical system 2 to support the first lens 11 and press the inner ring second lens 21; a second annular frame 6 is provided between the inner ring second optical system 2 and the outer ring second optical system 2 to support the inner ring second lens 21, support the third lens 31 and press the outer ring second lens 21; a boss is provided on the inner side of the lower end of the second lens 21 for cooperating and pressing. The first LED bead 12, the second LED bead 23 and the third LED bead 32 are disposed on the lamp plate 8, and the lamp plate 8 is fixed to the lamp body 4 by bolts, thereby fixing the LED beads to the lamp body 4. The first annular frame 5 and the second annular frame 6 are snapped together with the lamp plate 8, thereby fixing the lens to the lamp plate.

Claims

1. A combined signal taillight, comprising a lamp body and a cover that cooperates with the lamp body, characterized in that: A first optical system is located at the center of the lamp body. A second optical system arranged in one or more rings is located around the first optical system. The second optical system includes a second light source, a second light-diffusing plate, and a second lens in sequence according to the light output direction. The second light source includes a number of second LED beads. The second lens is ring-shaped and includes an incident surface, a reflective surface, and an output surface. The output surface is located on the opposite side of the reflective surface. The output surface is stepped and includes a number of stepped surfaces with different heights. Adjacent stepped surfaces are connected by a connecting surface. The stepped surface is located above the incident surface and has optical textures that disperse light. The connecting surface is a total reflection surface.

2. A combined signal taillight according to claim 1, characterized in that: The second lens has a triangular cross-section, with its bottom surface being the incident light surface, its outer surface being the reflecting surface, and its inner surface being the emitting light surface.

3. A combined signal taillight according to claim 1, characterized in that: The angle between the connecting surface and the incident light surface is 70~90°.

4. A combined signal taillight according to claim 1, characterized in that: The second light-diffusing plate is in close contact with the light-incident surface of the second lens.

5. A combined signal taillight according to claim 1, characterized in that: The second LED beads are distributed according to the shape of the light incident surface of the lens.

6. A combined signal taillight according to any one of claims 1 to 5, characterized in that: There are two second optical systems with different radii.

7. A combined signal taillight according to claim 6, characterized in that: A third optical system is provided between the two second optical systems. The third optical system includes a third light source and a third lens in sequence according to the light output direction. The third light source includes a number of third LED beads. The third lens is ring-shaped and is composed of a number of third lens units that correspond one-to-one with the third LED beads.

8. A combined signal taillight according to claim 7, characterized in that: The first optical system includes a first light source and a first lens in sequence according to the light emission direction. The first light source includes a plurality of first LED beads, and the first lens is composed of a plurality of first lens units that correspond one-to-one with the first LED beads.

9. A combined signal taillight according to claim 8, characterized in that: A first annular frame is provided between the first optical system and the inner ring second optical system to support the first lens and press the inner ring second lens; a second annular frame is provided between the inner ring second optical system and the outer ring second optical system to support the inner ring second lens, support the third lens and press the outer ring second lens.

10. A combined signal taillight according to claim 9, characterized in that: The first LED bead, the second LED bead, and the third LED bead are mounted on a lamp plate, which is fixed to the lamp body by bolts. The first and second ring frames are snap-fitted to the lamp plate.

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