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Free-form optical reflector for LED (light-emitting diode) motorcycle high beam

An optical reflection, LED light source technology, applied in reflectors, light sources, motor vehicles, etc., can solve problems such as affecting the life safety of pedestrians on the road, and the light distribution effect of LED lights cannot meet national standards, and achieve energy utilization. High, easy to manufacture and install, low glare effect

Active Publication Date: 2012-11-14
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The light distribution effect of LED car lights cannot meet the national standards, which will affect the safety of car drivers and pedestrians on the road

Method used

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  • Free-form optical reflector for LED (light-emitting diode) motorcycle high beam
  • Free-form optical reflector for LED (light-emitting diode) motorcycle high beam
  • Free-form optical reflector for LED (light-emitting diode) motorcycle high beam

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Embodiment Construction

[0031] The above content has fully described the present invention, and the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0032] The invention discloses an optical reflector for high-beam lights of LED motorcycle lights. The reflector has small volume, low glare effect, high utilization rate of light energy, convenient installation, and can produce light pattern and illuminance distribution meeting the light distribution requirements of the national standard GB5948-1998. . For the high beam, the national standard requires that the illuminance value of the specified area on the lighting surface 25m away from the front of the car lamp meet the standard, and the illuminance value gradually decreases from the middle to the two sides. According to the light type and illuminance distribution required by the national standard for light distribution, the lighting area on the lighting surface is set...

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Abstract

The invention discloses a free-form optical reflector for an LED (light-emitting diode) motorcycle high beam, wherein an internal surface of the reflector is a free-form surface to form an optical reflecting surface; the bottom surface of the reflector is an opening; an LED light source is installed at the centre of the opening; one end rightly facing the bottom surface is a light exit port of the reflector; the minority of light emitted by the LED light source directly shines on an illuminating surface, and the majority of the light is reflected by the internal surface of the reflector and then is emergent to the illuminating surface. The light energy emitted by the LED light source is emergent after being reflected by the freeform reflector, so that the loss is reduced and the utilization rate of light energy is improved. The reflector is small in size and has a low glare effect and meets the light distribution requirements in GB5948-1998. In addition, a heat-radiating device and the LED light source are conveniently installed, and the heat dissipation efficiency of the overall lamp is favorably improved.

Description

technical field [0001] The invention relates to the technical field of LED motorcycle lamp lighting, in particular to a free-form optical reflector used for the LED motorcycle high-beam lamp. Background technique [0002] Light-emitting diode (LED), as the fourth-generation vehicle light source, has many advantages such as small size, low energy consumption, fast response, and long life. With the continuous advancement of LED technology, more and more problems in LED automotive lighting have been overcome, and the application is becoming more and more common. However, since the luminous characteristics of LEDs are different from traditional light sources, in order to meet the light distribution standards and improve system performance, it is necessary to carry out secondary optical design for LEDs, so as to realize the optimization of the headlight lighting system. [0003] The light distribution effect of LED car lights cannot meet the national standards, which will affect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21V7/04F21V7/10F21W101/027F21W101/10F21Y101/02F21W107/17
Inventor 王洪陈赞吉吴跃锋杨洁
Owner SOUTH CHINA UNIV OF TECH
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