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LED (light emitting diode) condenser lens

A technology of condensing lens and optical axis is applied in the field of lenses with high-efficiency condensing function, which can solve the problems of high requirements on molding process and difficult processing, and achieve the effects of simple processing and forming, improved utilization rate, and high-efficiency light-converging function.

Inactive Publication Date: 2014-03-12
OCEANS KING LIGHTING SCI&TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these LED condenser lenses usually have defects such as high molding process requirements and difficult processing.

Method used

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  • LED (light emitting diode) condenser lens
  • LED (light emitting diode) condenser lens
  • LED (light emitting diode) condenser lens

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Embodiment Construction

[0025] In order to make the technical problems, technical solutions and beneficial effects to be solved by 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.

[0026] Please refer to Figure 1 to Figure 3 , which is Embodiment 1 of the present invention, the condensing lens L is a truncated rotator, and has an optical axis A coincident with the axis of gyration of the rotator, and the condensing lens includes a light source corresponding to the small end of the condensing lens The receiving groove 1, the light emitting surface 2 corresponding to the large end of the condenser lens, and the total reflection surface 3 located on the outer wall of the condenser lens. The light source receiving groove 1 is a hemispherical gr...

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Abstract

The invention discloses an LED (light emitting diode) condenser lens. The condenser lens is a round-table revolution body and is provided with an optical axis overlapped with a revolution axis of the revolution body; the condenser lens comprises a light source containing tank corresponding to the small end of the condenser lens, a light emitting surface corresponding to the big end of the condenser lens, and a fully-reflecting surface located on the outer side wall of the condenser lens; the light source containing tank is a hemispherical tank; the light emitting surface sinks inward and forms a conical surface part in the middle and protruding outward and a plane part surrounding the conical surface part; the vertex of the conical surface part and the sphere center of the light source containing tank are located on the optical axis; and the light source containing tank and the conical surface part define a central condensation part together. Compared with the prior art, the LED condenser lens disclosed by the invention has an efficient condensation function on an LED; after the light emitted by the LED is processed by the LED condenser lens disclosed by the invention, the light emitting angle is very small; and the LED condenser lens disclosed by the invention also can remarkably improve the utilization rate of the LED luminous flux of a lamp while guaranteeing the condensation function.

Description

technical field [0001] The present invention relates to the technical field of LED (Light Emitting Diode, light emitting diode) condensing lens, and more specifically, relates to a lens with high-efficiency condensing function. Background technique [0002] In order to realize the light concentrating of LEDs, one method in the prior art is to use a reflector with a parabolic surface to achieve light concentrating, but this method is difficult to apply to occasions where the luminous angle is small (such as when the luminous angle is less than 5 degrees). Increase the size of the reflector, otherwise the light with a smaller luminous angle cannot be used, and eventually the luminous angle of the light will increase. [0003] In the prior art, there are also technical solutions that use convex lenses to concentrate light on LEDs, but these solutions have the problem of low LED luminous flux utilization, which is specifically manifested in the fact that light with a large lumin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F21V5/04F21Y101/02F21Y115/10
Inventor 周明杰罗英达
Owner OCEANS KING LIGHTING SCI&TECH CO LTD
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