High beam reflector, high beam and motor vehicle
A reflector and high beam technology, applied in the field of lighting, can solve the problems of low efficiency and serious light decay of the high beam reflector, and achieve the effect of small light decay
Inactive Publication Date: 2012-12-19
OCEANS KING LIGHTING SCI&TECH CO LTD +1
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Problems solved by technology
[0005] The purpose of the embodiments of the present invention is to provide a high-beam reflector, aiming to solve the problems of serious light attenuation and low efficiency of the existing high-beam reflector
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[0016] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0017] In the embodiment of the present invention, the inner surface of the high-beam reflector is designed as a stepped multi-layer free-form surface, and the light emitted by the light source is reflected by the free-form surface and exits in parallel. , and the light attenuation is small.
[0018] The inner surface of the high-beam reflector provided by the embodiment of the present invention has a multi-layer free-form surface, and the free-form surface is distributed up and down, and arranged in steps, and the height of the free-form surface is 3-7mm; the reference plane of each free-form surf...
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The invention is suitable for the field of lighting, and provides a high beam reflector, a high beam and a motor vehicle. The inner surface of the high beam reflector is provided with a plurality of layers of free curved surfaces which are distributed in a stepped way along the vertical direction; the height of the free curved surface is 3 to 7mm; the reference surface of each free curved surfaceis a paraboloidal surface of which the focal length is 6 to 8mm; and the light outlet of the reflector is circumferentially provided with a light stop plate. The inner surface of the high beam reflector is designed to be the stepped multi-layer free curved surface and the light emitted from a light source is emergent in parallel after being reflected by the free curved surface, so that the embodiment of the invention meets the requirements of the light distribution performance of the high beam due to long-distance projection and more concentrated light; and the light emitted from the light source is directly emergent or only reflected once by the free curved surface or the light stop plate and then is emergent so that light attenuation is low.
Description
technical field [0001] The invention belongs to the field of lighting, and in particular relates to a high beam reflector, a high beam and a motor vehicle. Background technique [0002] At present, the light sources of automobile headlights are mainly halogen tungsten lamps and high-pressure gas discharge lamps. The lamps have poor shock resistance, short service life, and relatively high power consumption. In contrast, LED light sources have the advantages of energy saving, long life, and good shock resistance. The development of LED as a light source for automobile headlights has been a hot spot in recent years. [0003] After 2004, various LED headlights were exhibited at international auto exhibitions. In May 2007, Japan's Koito Manufacturing Co., Ltd. successfully installed white LED headlights on the LEXUS LS600h model. The optical system uses The ellipsoidal reflector and lens form a transmissive optical system. In 2007, OSRAM Germany launched the LED module "OSTAR...
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IPC IPC(8): F21V7/06F21S8/10B60Q1/04
Inventor 周明杰罗英达
Owner OCEANS KING LIGHTING SCI&TECH CO LTD