Small-angle lens for high-power LED

A small-angle, high-power technology, applied in the field of LED lighting, can solve the problem of difficult balance between lens appearance and optical properties, and achieve a good effect of uniform light and color mixing

Pending Publication Date: 2018-03-16
GUANGZHOU DASEN LIGHTING ELECTRONICS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] For this reason, the present invention is to solve the above-mentioned technical problems, thereby proposing a high-power LED that improves the color mixing effect of small-angle beams, prevents the LED light source from scalding the light incident surface of the lens, and solves the problem that the lens appearance and optical properties are difficult to balance. small angle lens

Method used

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  • Small-angle lens for high-power LED
  • Small-angle lens for high-power LED

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Embodiment

[0028] This embodiment provides a small-angle lens for high-power LEDs, which can achieve a beam angle projection of less than 10° under the condition of similar shape and size to similar lenses, and has excellent light uniformity and color mixing effects. The lens as Figure 1-2 As shown, it includes a lens body, the lens body is in the shape of a truncated cone, and the inner bottom of the lens body has an LED accommodating cavity 1, and the bottom of the LED accommodating cavity 1 is provided with an LED light source 2, and the LED light source 2 The integrated light source for multi-color LED chips can also be a single-color LED light source.

[0029] The lens body includes a total reflection surface 3 on the side, an arc-shaped concave surface 4 on the top, and a conical refracting portion 5 on the top of the LED accommodating cavity 1, and a free-form surface 6 is provided at the bottom of the arc-shaped concave surface 4, so The side of the free-form surface 6 facing t...

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Abstract

The invention discloses a small-angle lens for a high-power LED. The small-angle lens comprises a lens body. The bottom of the lens body is provided with an LED containing cavity. The lens body comprises a fully reflecting surface on the side face and an arc-shaped concave surface on the top. The bottom of the arc-shaped concave surface is provided with a free-from surface. The top of the LED containing cavity is provided with a circular conical refraction part. An LED light source emits light at the bottom of the LED containing cavity. After reflected by the fully reflecting surface on the side portion of the lens body and refracted by the circular conical refraction part, light is subjected to light concentration of the free-form surface and light uniformization and color mixing treatment of the arc-shaped concave surface and is turned into a collimated beam to be protected out. Under conventional lens outline dimensions, small-angle light beam projection less than 10 degrees is realized. The small-angle lens has good light uniformization and color mixing effects and can be extensively applied to LED outdoor projection lamps, entertainment PAR lights, wall washer lamps, matrix lamps and the like.

Description

technical field [0001] The invention belongs to the technical field of LED lighting and relates to an LED lens, in particular to a small-angle lens for high-power LEDs. Background technique [0002] With the implementation of the incandescent lamp phase-out plan, LED lighting has gradually become popular. Compared with traditional lighting, LED lighting has significant advantages in energy saving, environmental protection and long life. Widely used in shopping malls, hotels, hospitals, roads, architectural landscapes, stage lighting and other lighting fields. [0003] Due to the large power required for stage entertainment lighting and outdoor landscape lighting, in order to realize this kind of high-power LED lighting, there are currently two technologies: packaging a single high-power LED chip or adopting multi-chip integrated packaging. For the former, The realization of high power is often limited by the size of the chip, while integrated packaging has greater flexibili...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21K9/20F21V5/04F21Y115/10
CPCF21K9/20F21V5/04F21Y2115/10
Inventor 许法卿薛金山
Owner GUANGZHOU DASEN LIGHTING ELECTRONICS
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