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COB module light source for enhancing central light intensity and manufacturing method

A module and light source technology, which is applied in the direction of light source, fixed light source, and optical elements used to change the spectral characteristics of emitted light, etc. It can solve the problems of large package size and decreased package brightness, so as to reduce the degree of divergence and increase the center The effect of light intensity and narrowing the light angle

Pending Publication Date: 2022-04-08
APT ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In order to overcome the above-mentioned shortcomings of the prior art, the object of the present invention is to provide a COB module light source and a manufacturing method that enhances the central light intensity, aiming to solve the problems of large package size and decreased package brightness in the prior art

Method used

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  • COB module light source for enhancing central light intensity and manufacturing method
  • COB module light source for enhancing central light intensity and manufacturing method
  • COB module light source for enhancing central light intensity and manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] The COB module light source that enhances the central light intensity includes a substrate 1 , a circuit layer 2 arranged on the substrate 1 , several LED chips 3 arranged on the circuit layer 2 , and a silicone cap 4 arranged on the LED chip 3 .

[0047] The light-emitting diode chips 3 are arranged in a plurality of circles from the center of the substrate 1 from the inside to the outside.

[0048] The silica gel cap 4 wraps the four sides and the top surface of the LED, and one or more kinds of fluorescent conversion materials 5 are arranged in the silica gel cap 4 .

[0049] The silicone cap 4 corresponds to a single light-emitting diode chip 3, forming several ring shapes, and the height of the silicone caps 4 placed in the same ring shape is the same, and from the center of the substrate 1 from the inside to the outside direction, the height of the silicone cap 4 increases successively; the height of the outermost silicone cap 4 is the largest, and the height of t...

Embodiment 2

[0055] The COB module light source that enhances the central light intensity includes a substrate 1, a circuit layer 2 arranged on the substrate 1, a number of LED chips 3 arranged on the circuit layer 2, and a silicone ring 6 arranged on the LED chip 3.

[0056] The light-emitting diode chips 3 are arranged in a plurality of circles from the center of the substrate 1 from the inside to the outside.

[0057] The silicone ring 6 wraps the four sides and the top surface of the LED, and the silicone cap 4 is provided with one or more fluorescent conversion materials 5 .

[0058] The silicone rings 6 correspond to the light-emitting diode chips 3 in the same ring-shaped position, forming several ring shapes, and the heights of the silicone rings 6 placed in the same ring-shaped position are the same, and from the bottom of the substrate 1 From the center to the outside, the height of the silicone ring 6 increases sequentially; the height of the outermost silicone ring 6 is the lar...

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Abstract

The invention discloses a COB module light source for enhancing central light intensity and a manufacturing method. The COB module light source for enhancing the central light intensity comprises a substrate, a circuit layer and at least one light-emitting diode chip, the circuit layer is arranged on the substrate, and the light emitting diode chip is arranged on the circuit layer; the light-emitting diode chips are arranged from inside to outside in a divergent manner from the center of the substrate; and a silica gel phosphor for wrapping the light-emitting diode chip is arranged at the light-emitting diode chip. By changing the output angles of the light rays of the light-emitting diode chips at different positions of the COB light source, the light-emitting angles of the light-emitting diode chips are gradually narrowed in the direction from the center to the outside, so that the divergence degree of the light rays at the edge of the light-emitting surface is greatly reduced, and the light rays are more refracted to the central area, so that the light rays are more gathered to the central area, the light-emitting angle of the COB is integrally narrowed, and the light-emitting efficiency of the COB light source is improved. And the central light intensity is obviously increased.

Description

technical field [0001] The invention belongs to the technical field of LEDs, and in particular relates to a COB module light source and a manufacturing method for enhancing central light intensity. Background technique [0002] With the popularization of LED semiconductor lighting technology, more and more lighting designs use light-emitting diode light sources. At the same time, due to the advantages of energy saving, environmental protection, and small size, it is derived more and more in the fields of general lighting, special lighting, and automotive lighting. Many application design schemes. [0003] In the actual application of LEDs, some lamps such as downlights, spotlights, and track lights are used in local lighting, and the requirements for central light intensity or central illuminance are increasing, especially for lamps with small angles of 15° and 20°. At present, most LED lamps achieve the effect of concentrating light in the center through secondary optical ...

Claims

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Application Information

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IPC IPC(8): F21K9/20F21K9/90F21V19/00F21V23/00F21V9/32H05K3/34H01L25/075H01L33/58H01L33/50F21Y115/10
Inventor 吴国锋林志平曾照明高锦晖刘桂良任剑锋肖国伟
Owner APT ELECTRONICS
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