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Optical lens for solid state lighting street lamps

A solid-state lighting and optical lens technology, which is applied in the field of optical lenses, can solve problems such as unsatisfactory, and achieve the effects of improving uniformity, increasing projection distance, and reducing installation size

Inactive Publication Date: 2010-02-17
XIAN JINNUO PHOTOELECTRIC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The common primary spherical lens is usually not designed for road lighting, and cannot meet the requirements of the national standard "CJJ 45-2006 Design Standard for Urban Road Lighting", especially the requirements of lighting uniformity

Method used

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  • Optical lens for solid state lighting street lamps
  • Optical lens for solid state lighting street lamps
  • Optical lens for solid state lighting street lamps

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Embodiment Construction

[0017] The structural principle and working principle of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0018] see figure 1 , 2 , 3, 4, 5, an optical lens for solid-state lighting street lamps, including a lens body 1, the bottom of the lens body 1 is provided with a groove body 2, the left shoulder 8 of the lens body 1, the right shoulder 9 and the inner surface of the groove body 2 constitute The structure is a convex mirror. The light passing through the convex mirror increases the exit angle through refraction, so that the direction of part of the light emitted by the original light source is farther away from the central vertical line, and the angle can be increased by 15 to 35 degrees. The maximum light intensity and the central vertical line The included angle can reach 50 degrees, the purpose is to increase the light projection distance and high-beam intensity of the lamp along the direction of road tra...

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Abstract

The invention discloses an optical lens for solid state lighting street lamps, comprising a lens body 1; a groove body 2 is arranged at the bottom of the lens body 1; the level surface 10 below the groove body 2 is a light source mounting surface; a pyramid-surface secondary lens 3 is arranged at the upper part of the lens body 1; light is refracted through a convex mirror formed by a left shoulder 8,a right shoulder 9 and the inner surface of the groove body 2 to increase the emergent angle of the light; the light emitted by a light source is refracted through the groove body 2 to further concentrate within side walks and lanes; the light passing the pyramid-surface secondary lens 3 is partially refracted or reflected to both sides of the secondary lens, which can reduces the value of light intensity above the lens, increases the value of light intensity of the two shoulders, leads the center of distribution curve flux of batwing to pit inward and improves the uniformity of roadway lighting; after passing through the side face 4 and the side face 5 of the lens body 1, light enters above the lens by total reflection so as to lead the light to be cast within side walks and lanes; the optical lens has the characteristics of reducing illuminance of a collineation point, increasing casting distance in road surface direction, casting angle and far-point light intensity and improvinguniformity.

Description

technical field [0001] The invention relates to an optical lens, in particular to an optical lens for a solid-state lighting street lamp. Background technique [0002] At present, in occasions with higher requirements on lighting quality, such as street lamp applications, there are generally secondary optical designs that meet the requirements of light distribution. For the light distribution system of gas discharge lamps, a reflective light cup structure is usually used, and the reflective cavity reflects and projects the upper half of the light in the required area for road driving. However, solid-state lighting, especially high-power LED street lighting, is different from gas discharge lamps in light emitting principle, installation method and light distribution characteristics. The principle of light cup reflection is used to solve the light distribution requirements and realize the batwing light distribution required by road lighting. Curve, and meet the necessary unif...

Claims

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Application Information

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IPC IPC(8): F21V5/04F21W131/103F21Y101/02F21Y115/10
Inventor 李文辉罗鸿安张永福
Owner XIAN JINNUO PHOTOELECTRIC TECH
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