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Optical lens and light emitting diode device including optical lens

An optical lens and light source technology, applied in lighting devices, lighting device parts, semiconductor devices of light-emitting elements, etc., can solve the problem of low light utilization rate and achieve the effect of improving light utilization rate

Inactive Publication Date: 2017-03-29
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the light emitted from the bottom of the sides of the light-emitting diodes propagates roughly laterally through the optical lens, resulting in low light utilization efficiency

Method used

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  • Optical lens and light emitting diode device including optical lens
  • Optical lens and light emitting diode device including optical lens
  • Optical lens and light emitting diode device including optical lens

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] The optical lens provided by the present invention will be further described below in combination with specific embodiments.

[0016] Please also refer to Figure 1 to Figure 4 , the optical lens 10 provided by the first embodiment of the present invention includes a top 20 , a flange 25 and a bottom 30 . The flange 25 is located between the top 20 and the bottom 30 . The optical lens 10 can be formed by injection molding using polymethyl methacrylate material.

[0017] The top 20 is roughly in the shape of a cycloid. The top 20 includes an extending section 24 and a connecting section 26 connected to each other. The extension section 24 includes an outer surface 242 . In this embodiment, the outer surface 242 is a truncated conical surface. In this embodiment, the extension section 24 and the connection section 26 are arranged coaxially. The connection section 26 is connected between the extension section 24 and the flange 25 . The minimum diameter of the connec...

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PUM

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Abstract

The present invention relates to an optical lens comprising opposing top and bottom portions. And the top portion is recessed along the center axis of the optical lens toward the inside of the optical lens to form a depression. And the bottom surface of the recessed portion and the outer side surface of the top portion together constitute the light exit surface of the optical lens. And the bottom portion is provided with a receiving groove for accommodating the light source along the central axis of the optical lens. And the outer surface of the bottom portion is curved so that light emitted from the light source reaches the outer side surface of the bottom portion to be reflected or refracted and emitted from the light exit surface. The present invention also relates to a light emitting device comprising the optical lens.

Description

technical field [0001] The invention relates to an optical lens for improving the light utilization rate of a light-emitting diode and a light-emitting device comprising the optical lens. Background technique [0002] Currently, light emitting diodes are increasingly widely used in different scenarios, for example, used as a backlight module of a liquid crystal display, or used in various lamps and the like. With the development of packaging technology from wire-bonded packaging to flip-chip packaging and wafer-level packaging, the light emission angle of light-emitting diodes has also developed from top surface light emission to top surface and side light emission. In practical applications, in order to adjust the light field of the light emitting diode, an optical lens is usually arranged in the light emitting direction of the light emitting diode. However, the light emitted from the bottom of the sides of the light-emitting diodes propagates roughly laterally through the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21V5/04F21K9/20F21K9/69F21V19/00F21Y115/10
CPCF21K9/00F21V5/04F21V19/001F21V5/046F21V7/0091F21Y2115/10H01L33/58
Inventor 邱柏瑾
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD