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LED low-beam projection unit and vehicle

A technology of low beam and optical axis, applied in the field of LED low beam projection units and vehicles, can solve problems such as affecting driving safety, unsightly light pattern, and driver visual fatigue.

Active Publication Date: 2018-01-09
BAIC MOTOR CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, although such a design can meet the requirements of safety and regulations, a dark spot will be produced on the left side of the LED low beam light pattern, and a dark spot will also be produced on the road lighting, which leads to the unsightly light pattern. The obvious excessive light and shade produced by the lighting can easily cause the driver's visual fatigue, which greatly affects driving safety

Method used

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  • LED low-beam projection unit and vehicle
  • LED low-beam projection unit and vehicle
  • LED low-beam projection unit and vehicle

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Embodiment Construction

[0029] Embodiments of the invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0030] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial", The orientation or positional relationship indicated by "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the referred device or element Must be in a particular ...

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Abstract

The invention discloses an LED low-beam projection unit and a vehicle. The LED low-beam projection unit comprises a baffle support, a lens and a light source, wherein the lens is arranged on the baffle support and located behind the lens; the baffle support is provided with a check block used for blocking light rays; the lens is provided with a central optical axis; the check block is arranged behind an imaging plane; the check block extends from front to back and gradually gets close to the central optical axis from front to back. According to the LED low-beam projection unit, a dark area required by laws is formed on the left side of a light pattern; meanwhile, the dark area and a bright area are in uniform transition, and a driver cannot have visual fatigue.

Description

technical field [0001] The invention relates to the technical field of vehicles, in particular to an LED low beam projection unit and a vehicle. Background technique [0002] The regulations have specific requirements for the light type and test points of LED low beams (GB 25991-2010). According to the regulations, the 75L and 50L test points should not be too bright (located on the left side of the low-beam light type), otherwise it is easy to dazzle the oncoming drivers when there is water on the ground and affect the driving safety of the vehicle. [0003] But in order to obtain brighter and farther lighting on the same road, the brighter the right side of the light pattern, the better. The lens-type LED low-beam projection optical system has symmetrical left and right brightness. The left and right sides of the light pattern cannot meet the above requirements at the same time. [0004] The traditional solution is to design a corresponding optical structure on the lens...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S41/141F21S41/25F21S41/47F21V5/04F21V1/00F21V7/00B60Q1/04F21W107/10F21Y115/10
Inventor 孙渤林张金叶李国庆
Owner BAIC MOTOR CORP LTD