Combined working lamp

Abstract

A combined working lamp comprises a lamp body and a mask matched with the lamp body, a first optical system is arranged in the middle of the lamp body, and a second optical system is arranged on the periphery of the first optical system; the first optical system sequentially comprises a first light source, a first polarizing lens and a first polarizing element according to a light emitting direction, wherein the first polarizing lens is used for downwards shifting incident light; the second optical system sequentially comprises a second light source, a second dodging plate and a second lens according to the light emitting direction, the second light source comprises a plurality of second LED lamp beads, the second lens is annular and comprises a light incident surface, a reflecting surface and a light emitting surface, the light emitting surface is located on the side opposite to the reflecting surface, the light emitting surface is in a step shape, and the light emitting surface is located on the other side opposite to the reflecting surface. The light guide plate 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 incident surface, optical textures for scattering light are arranged on the step surfaces, and the connecting surface is a fully reflecting surface. The multifunctional working lamp has the functions of a working lamp and a signal lamp.

Description

Technical Field

[0001] This utility model relates to vehicle lights, and more particularly to a combination work light. Background Technology

[0002] Vehicle lights refer to the lights on a vehicle. There are many types of work lights on vehicles, each with different functions, mainly including headlights and taillights. Vehicle work lights generally serve both illumination and signaling purposes. For example, the light emitted by headlights illuminates the road ahead, allowing drivers to drive safely at night. Existing work lights only have an illumination function and lack signal lights to alert other vehicles or pedestrians to the vehicle's movement. Their function is relatively limited and cannot meet the needs of users. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a combined work light that has the functions of both a work light and a signal light, and the light emitted by the signal light has a three-dimensional effect.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is: a combined work lamp, 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 is provided around the first optical system. The first optical system includes, in order of light output direction, a first light source, a first polarizing lens that deflects the incident light downward for the first time, and a first polarizing element that deflects the incident light downward for the second time. The second optical system includes, in order of light output direction, a second light source, a second light-diffusing plate, and a second lens. The second light source includes a plurality of second LED beads. The second lens is annular and includes an incident surface, a reflecting surface, and an emitting surface. The emitting surface is located on the opposite side of the reflecting surface. The emitting 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. The stepped surface has optical textures that scatter light. The connecting surface is a total reflection surface. The principle of this invention is as follows: The first optical system is a working light optical system. The first polarizing lens can direct the light downwards, and the first polarizing element can disperse the light evenly, thereby preventing glare. The second optical system is a signal light optical system. The reflective surface and connecting surface of the second lens are both total reflection surfaces, which can improve the brightness of the light emitted from the stepped surface and reduce the influence of stray light on the light emitted 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 light-emitting 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, the first polarizing lens includes a first lens portion located at the bottom and a second lens portion located at the top. The wall thickness of the first lens portion is uniform, and the wall thickness of the second lens portion gradually decreases from bottom to top. The upper end of the first lens portion is connected to the lower end of the second lens portion.

[0010] As an improvement, the first polarizing element includes an arc-shaped plate covering the second lens portion and a serrated pattern on the downward-facing surface of the arc-shaped plate.

[0011] As an improvement, a decorative cover is provided on the inner side of the second lens, and the decorative cover has a through hole for the first polarizing lens to be exposed.

[0012] As an improvement, the first LED bead and the second LED bead are mounted on the lamp board.

[0013] The beneficial effects of this utility model compared with the prior art are:

[0014] The first optical system is a working light optical system. The first polarizing lens can direct the light downwards, and the first polarizing element can disperse the light evenly, thereby preventing glare. The second optical system is a signal light optical system. The reflective surface and connecting surface of the second lens are both total reflection surfaces, which can improve the brightness of the light emitted from the stepped surface and reduce the influence of stray light on the light emitted 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 light-emitting surface forms a floating three-dimensional effect. Attached Figure Description

[0015] Figure 1 This is a cross-sectional view of the present invention.

[0016] Figure 2 This is an exploded view of the present invention.

[0017] Figure 3 This is a cross-sectional view of the second lens.

[0018] Figure 4 This is a cross-sectional view of the first polarizing lens.

[0019] Figure 5 This is the optical path diagram of a polarizing optical system.

[0020] Figure 6 This is a pattern of light spots formed by the light from a polarizing optical system. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings.

[0022] like Figure 2 As shown, a combined work light includes a lamp body 4 and a face shield (not shown) that mates with the lamp body 4. The front of the lamp body 4 has a mounting groove, and the back of the lamp body 4 has a heat dissipation fin plate. The face shield is located on the front of the lamp body 4 and forms a mounting space. A first optical system is located in the middle of the lamp body 4, and a second optical system is located around the first optical system. The first and second optical systems are located within the mounting space.

[0023] like Figure 1-2 As shown in Figures 4-6, the first optical system, in sequence according to the light emission direction, includes a first light source, a first polarizing lens 1 that deflects the incident light downwards for the first time, and a first polarizing element 3 that deflects the light downwards for the second time. This embodiment has four first polarizing lenses 1 arranged in a rectangular pattern, with the first light source, first polarizing element 3, and first polarizing lens 1 corresponding one-to-one. The first light source includes a first LED bead 7, and the light from the first LED bead 7 illuminates the incident surface of the first polarizing lens 1. The four first polarizing lenses 1 are interconnected via a connecting plate 10, which can be integrally injection molded. The connecting plate 10 has connecting posts, which are bolted to the lamp body 4. The first polarizing lens 1 includes a first lens section 11 located at the bottom and a second lens section 12 located at the top. The first lens section 11 has a uniform wall thickness and allows downward-angled light to pass freely without deflection. The wall thickness of the second lens section 12 gradually decreases from bottom to top. The upper end of the first lens section 11 is aligned with the lower end of the second lens section 12. The second lens section 12 deflects upward-angled light for the first time, causing all upward-angled self-emitting light to be deflected to a horizontal angle. The first polarizing element 3 includes an arc-shaped plate covering the second lens section 12 and a serrated pattern on the downward-facing surface of the arc-shaped plate. The two ends of the arc-shaped plate are fixed to the connecting plate 10 by snap-fit. The serrated pattern deflects the emitted light from the second lens section 12 for the second time, deflecting it uniformly downwards.

[0024] like Figure 1 , 2As shown in Figure 3, the second optical system includes, in sequence according to the light emission direction, a second light source, a second light-diffusing plate 5, and a second lens 2. The second lens 2 includes an incident surface 21, a reflecting surface 22, and an emitting surface 23. The emitting surface 23 is located on the opposite side of the reflecting surface 22. The cross-section of the second lens 2 is approximately triangular. The bottom surface of the second lens 2 is the incident surface 21, the outer side of the second lens 2 is the reflecting surface 22, and the inner side of the second lens 2 is the emitting surface 23. In this embodiment, the second lens 2 is annular and can be designed according to the shape of the lamp body 4. The emitting surface 23 is stepped, comprising several stepped surfaces 232 with different heights, connected by a connecting surface. The second lens 2 is connected at 231. The stepped surface 232 is located above the incident light surface 21, and the number of stepped surfaces 232 is designed according to needs. The stepped surface 232 has optical textures that disperse light, such as vertical textures or corn kernel textures. The connecting surface 231 is a total reflection surface, and the angle between the connecting surface 231 and the incident light surface 21 is 70~90°. After the light enters the second lens 2 from the incident light surface 21, part of the light directly exits from the stepped surface 232, and the other part of the light is reflected by the reflecting surface 22 and the connecting surface 231 and finally exits from the stepped surface 232. The second light-diffusing plate 5 is closely attached to the incident light surface 21 of the second lens 2. The shape of the second light-diffusing plate 5 can be similar to the shape of the incident light surface 21. The second light-diffusing plate 5 can disperse the light from the LED beads, making the light output of the second lens 2 more uniform. The second light source includes a number of second LED beads 6, which are distributed according to the shape of the incident light surface 11 of the second lens 2. The reflecting surface 22 and the connecting surface 231 of the second lens 2 are both total reflection surfaces, which can improve the light output brightness of the stepped surface 232 and reduce the influence of stray light on the light output of the stepped surface 232; each stepped surface 232 has a different height and is staggered with each other. When the stepped surface 232 emits light, the entire light output surface 23 forms a floating three-dimensional effect.

[0025] like Figure 1 As shown, a decorative cover 9 is provided on the inner side of the second lens 2. The shape of the decorative cover 9 is similar to the shape formed by the second lens 2. The decorative cover 9 has a through hole for the first polarizing lens 1 to be exposed. The edge of the decorative cover 9 presses against the flange at the bottom of the second lens 2. A pressure strip is provided at the bottom of the decorative cover 9. The pressure strip presses the lamp plate 8 onto the lamp body 4. The first LED bead 7 and the second LED bead 6 are provided on the lamp plate 8.

Claims

1. A combined work light, comprising a lamp body and a cover that mates with the lamp body, characterized in that: A first optical system is located in the middle of the lamp body, and a second optical system is located around the first optical system. The first optical system includes, in sequence according to the light output direction, a first light source, a first polarizing lens that deflects the incident light downward for the first time, and a first polarizing element that deflects the incident light downward for the second time. The second optical system includes, in sequence according to the light output direction, a second light source, a second light-diffusing plate, and a second lens. The second light source includes a plurality of second LED beads. The second lens is annular and includes an incident surface, a reflecting surface, and an output surface. The output surface is located on the opposite side of the reflecting 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 scatter the light. The connecting surface is a total reflection surface.

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

4. A combined work light 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 work light 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 work light according to claim 1, characterized in that: The first polarizing lens includes a first lens portion located at the bottom and a second lens portion located at the top. The wall thickness of the first lens portion is uniform, and the wall thickness of the second lens portion gradually decreases from bottom to top. The upper end of the first lens portion is connected to the lower end of the second lens portion.

7. A combined work light according to claim 6, characterized in that: The first polarizing element includes an arc-shaped plate covering the second lens section and a serrated pattern on the downward-facing surface of the arc-shaped plate.

8. A combined work light according to claim 1, characterized in that: The second lens has a decorative cover on its inner side, and the decorative cover has a through hole for the first polarizing lens to be exposed.

9. A combined work light according to claim 1, characterized in that: The first LED bead and the second LED bead are mounted on the lamp board.

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