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Lens of front-lighting tunnel illuminating lamp and tunnel illuminating lamp

A technology of lighting lamps and light tunnels, which is applied in the parts of lighting devices, lighting devices, lighting and heating equipment, etc., can solve problems such as hidden safety hazards and driver visual fatigue, and achieve the effect of improving comfort and less driving fatigue.

Pending Publication Date: 2019-04-02
GUANGDONG DELOS LIGHTING IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Driving for a long time will easily cause the driver's visual fatigue and bring certain safety hazards

Method used

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  • Lens of front-lighting tunnel illuminating lamp and tunnel illuminating lamp
  • Lens of front-lighting tunnel illuminating lamp and tunnel illuminating lamp
  • Lens of front-lighting tunnel illuminating lamp and tunnel illuminating lamp

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Such as figure 1 As shown in the figure, a lens of a forward tunnel lighting lamp, the lens is a solid and asymmetric lens, the thickness of the lens gradually increases from top to bottom, and the lens includes a lens light incident surface 1 and a lens light exit surface 2 , the light incident surface 1 of the lens and the light exit surface 2 of the lens both adopt an upwardly convex curved surface structure, and the light emitted by the light source in the direction of -90°~+90° passes through the light incident surface of the lens and the light exit surface of the lens in turn, and then goes downward refracts, and shines towards the lower end of the lens.

[0048] The lens adopts an asymmetric lens, and the thickness of the lens cross section gradually increases from top to bottom, so that most of the light from the tunnel lighting can be deflected to the lower end of the lens. By adjusting the direction of the lens, the light can follow the direction of the vehicl...

Embodiment 2

[0092] Such as Figure 1 to Figure 3 As shown, a forward-light tunnel lighting lamp includes a light source 3 and a lens, and the lens adopts the lens of a forward-light tunnel lighting lamp described in Embodiment 1.

[0093] The forward tunnel lighting lamp of this embodiment has any combination of technical features of the lens of the forward tunnel lighting lamp according to Embodiment 1 of the present invention, and has the corresponding functions and beneficial effects of Embodiment 1.

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PUM

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Abstract

The invention discloses a lens of a front-lighting tunnel illuminating lamp and a tunnel illuminating lamp. The lens is a solid and asymmetric lens, an inner cavity used for containing a light sourceis arranged in the lens, the position of the inner cavity is closer to the upper part of the lens, the thickness of a cross section of the lens is gradually increased from top to bottom, the lens comprises a lens incident surface and a lens emergent surface, the lens incident surface and the lens emergent surface both adopt an upward-protruding curved surface structure, and light rays emitted fromthe light source in the direction of minus 90 degrees-plus 90 degrees sequentially pass through the lens incident surface and the lens emergent surface, and then are refracted downwards to be used for illuminating along the advancing direction of a vehicle. According to the lens, the asymmetric lens is adopted, the direction of the lens is adjusted, so that the light rays realize illumination inthe advancing direction of the vehicle, the light rays can be prevented from directly illuminating eyes of a driver, the comfort degree of illumination is improved, so that the driver is not prone togenerate driving fatigue, and the lens can be widely applied to the field of optical lenses.

Description

technical field [0001] The invention relates to the field of optical lenses, in particular to a lens for a forward-lighting tunnel lighting lamp and the tunnel lighting lamp. Background technique [0002] As a kind of dark room lighting, tunnel lighting is almost entirely provided by lighting fixtures in the tunnel, so the lighting comfort of the lighting fixtures is very high. The lenses used in existing LED tunnel lighting are usually symmetrical light distribution lenses. In order to achieve a height ratio of 2 times or even higher, part of the light will inevitably shine directly into the driver's field of vision of passing vehicles. Driving for a long time can easily cause the driver's visual fatigue and bring certain safety hazards. Contents of the invention [0003] In order to solve the above-mentioned technical problems, the object of the present invention is to provide a lens for a tunnel lighting lamp and a tunnel lighting lamp. [0004] The technical scheme a...

Claims

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Application Information

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IPC IPC(8): F21V5/04
CPCF21V5/048
Inventor 刘燕娟杨和良
Owner GUANGDONG DELOS LIGHTING IND