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LED spherical light distribution lens

A light distribution lens and lens technology, applied in the direction of lens, optics, light source, etc., can solve the problems of decreasing light intensity distribution, narrow light distribution angle, narrow effective illumination angle of the lens, etc.

Inactive Publication Date: 2013-10-02
王子能
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] (1) The spatial distribution of light intensity is not uniform enough
[0007] E.g Image 6 In the range of 0° to 20°, the light intensity in the range of 0° to 20° is significantly greater than the light intensity in the space of 40° to 90°, and the light intensity distribution in the range of 20° to 40° decreases significantly, and the overall light intensity distribution of the lens is not reasonable enough
[0008] (2) Light distribution angle is too narrow
The overall effective illumination angle of the lens is too narrow

Method used

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  • LED spherical light distribution lens
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Examples

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Embodiment Construction

[0030] Such as Figures 1 to 3 As shown, the LED spherical light distribution lens of this embodiment includes a columnar lens body 11, the bottom 11 of the lens body 1 is provided with a mounting base 20, and the top 12 of the lens body 1 is provided with a base for reflecting light from the bottom. out of the reflective surface 30 of the lens body 1. In order to obtain a more uniform light intensity distribution in the spherical space, the reflective surface is preferably a surface of revolution, and the lens main body is preferably a body of revolution. However, the reflective surface and the lens body are slightly modified into a non-standard surface of revolution or a body of revolution, as long as the light distribution curve is roughly reasonable and the deviation of light intensity distribution is within the range that cannot be detected by human vision, the deformation is also allowed.

[0031] In this embodiment, the reflective surface is a concave surface with a ta...

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Abstract

The invention relates to an LED spherical light distribution component, in particular to an LED spherical light distribution lens, which comprises a cylindrical lens main body. The bottom of the cylindrical lens is provided with a mounting base, while the top is provided with a reflecting surface used for reflecting the light from the bottom out of the lens main body, wherein the reflecting surface is a pyramidal concave surface with a multi-section structure. Compared with the prior art, the light intensity distribution of the spherical space of the lens has larger scope and better uniformity.

Description

technical field [0001] The invention relates to an LED light distribution component, in particular to an LED spherical light distribution lens. Background technique [0002] Since the luminous efficiency of the LED is >70Lm / W, it is much greater than that of the incandescent lamp (15Lm / W). The replacement of incandescent lamps by LEDs is becoming a hot technology for global energy-saving lighting. However, due to the unidirectional nature of LED light emission, it cannot meet the application requirements of incandescent lamps for all-round light emission. The use of secondary optical systems to make LED light sources that emit light in one direction Converting to a nearly omnidirectional light source is a technology that needs to be solved in today's market. The light intensity distribution of any measurement surface in the space centered on the illuminant of the omnidirectional luminous surface is a curve that approximates a central circle. Except for the lamp head, the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B3/00F21V5/04F21Y101/02F21Y115/10
Inventor 王子能
Owner 王子能