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Light emitting diode (LED) lamp optical lens

A light optics and lens technology, applied in the field of LED lighting equipment, can solve the problems of concentrated light sources, glare, and small LED light-emitting surface, and achieve the effects of soft light, material cost saving, and wide versatility

Inactive Publication Date: 2012-01-11
中国科学院宁波材料技术与工程研究所湖州新能源产业创新中心
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Problems solved by technology

The disclosed technical solution uses the principle of non-imaging optics to design optical lenses for low beam, high beam and fog lamps, which have the characteristics of small size, high optical efficiency and excellent optical performance, but it is used in the field of automotive lighting, optical lenses The excellent performance is mainly reflected in the improvement of the brightness of the light and the increase of the visible distance of the light, but it still cannot solve the technical problems of the small LED light-emitting surface and the excessive concentration of the light source, which makes people feel dazzling and dizzy.

Method used

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  • Light emitting diode (LED) lamp optical lens
  • Light emitting diode (LED) lamp optical lens
  • Light emitting diode (LED) lamp optical lens

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Embodiment Construction

[0040] The present invention will be further described below in conjunction with the accompanying drawings.

[0041] Such as figure 1 , figure 2 , image 3 Shown, is the optical lens of LED light of the present invention, comprises the collimating lens 4 of conical frustum shape or approximately frustum of conical shape; The side 7 of collimating lens 4 is a total reflection surface; The light exit surface of lens 1 is made up of the planar array that the concave surface of several rectangular concave microlenses 2 of the same size are closely arranged, and the concave surface of rectangular concave microlens 2 is facing away from the light exit surface of collimating lens 4; collimating lens 4 is in A refraction groove 5 is provided on the end surface opposite to the light-emitting surface of the collimating lens 4 ; The LED light optical lens can be obtained by integral molding, or can be obtained by combining the collimating lens 4 and the thin plate lens 1 separately. ...

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Abstract

The invention discloses a light emitting diode (LED) lamp optical lens, which comprises a collimation lens, wherein the side face of the collimation lens is a total reflection face; a light outlet face of the collimation lens is provided with a sheet lens; the sheet lens consists of concave faces of a plurality of rectangular concave micro lenses; and the collimation lens is provided with a refraction groove at an end plane opposite to the light outlet face of the collimation lens. Through the combination of the collimation lens and the sheet lens, light which passes through the LED lamp optical lens is softened and distributed uniformly and does not glare and the light source illumination range is expanded.

Description

technical field [0001] The invention relates to the field of LED lighting equipment, in particular to an optical lens for LED lighting. Background technique [0002] A light-emitting diode (Light-Emitting-Diode, referred to as LED) is a semiconductor that can convert electrical energy into light energy, and its core component is an LED chip. [0003] With the rapid development of information technology, the field of lighting has paid more and more attention to environmental protection and energy saving. Green lighting - high-power LED lighting has begun to show its star style in the world. High-power LED lighting technology has significant advantages such as environmental protection, energy saving, and long life, which will bring a historic revolution to traditional lighting technology. [0004] As the world's future star in the lighting field, although LED has its own irreplaceable advantages, in terms of practical application in the field of lighting, replacing traditiona...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21V5/04F21Y101/02
Inventor 张贤鹏吴秋萍林洁宋伟杰王振卫刘涛
Owner 中国科学院宁波材料技术与工程研究所湖州新能源产业创新中心
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