LED with high luminous efficiency and high color rendering

A technology with high color rendering and high light efficiency, applied in electrical components, electric solid-state devices, circuits, etc., can solve problems affecting product promotion, poor color reproduction, etc. Effect

Inactive Publication Date: 2014-07-09
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of white light has the advantages of simple realization and easy production. However, since this light only has yellow and blue spectrums, the reducibility of colors is still poor, especially for red.
As a result, it is not applicable in some places with high requirements for color reproduction, which affects product promotion.

Method used

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  • LED with high luminous efficiency and high color rendering

Examples

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Embodiment Construction

[0016] see figure 1 , figure 2 As shown, a LED with high light efficiency and high color rendering of the present invention includes a bracket cup 1, an inner concave cavity 11 is arranged on the bracket 1, and pins 41 and 42 are located on the corresponding two sides of the bracket 1, and the chip 6 passes through The crystal-bonding glue 5 is fixed inside the inner cavity 11 of the bracket. The bracket bowl 1 is an inner concave cavity 11 or a flat circuit board with a dam, phosphor powder and encapsulation glue are dotted in the bracket bowl, and baked to shape. For the packaged LED chip, the upper part of the chip is covered with the packaged glue yellow phosphor powder mixture 2 and the glue red phosphor powder mixture 7, and the above glue phosphor powder mixture is packaged twice.

[0017] Wherein, the LED chip is fixed on the bottom of the recessed cavity 11 through the crystal-bonding glue 5, and the upper part of the LED chip 6 is covered with the first layer of t...

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PUM

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Abstract

The invention discloses an LED with the high luminous efficiency and the high color rendering. The LED comprises a support bowl cup, pins, an LED chip and a glue and fluorescent powder mixture. A cavity recessed inwards is formed inside the support bowl cup. The LED chip is fixed to the bottom of the cavity recessed inwards through crystal fixing glue. The upper portion of the chip is coated with a first layer of the glue and fluorescent powder mixture and a second layer of the glue and fluorescent powder mixture. The size of the first layer of the glue and fluorescent powder mixture is 1 / 4 to 1 / 5 that of the cavity recessed inwards and the size of the second layer of the glue and fluorescent powder mixture is 3 / 4 to 4 / 5 that of the cavity recessed inwards. The pins comprise the first pin and the second pin. The LED chip is respectively and electrically connected with the first pin and the second pin through gold threads.

Description

technical field [0001] The invention relates to the technical field of LEDs, in particular to a novel LED with high light efficiency and high color rendering. Background technique [0002] With the promotion of energy saving and emission reduction policies, LED lighting is gradually gaining popularity, and the general lighting source is mainly white light. LED white light is made by the blue chip energized to emit light, part of the blue light excites the yellow light emitted by the phosphor powder coated on it, and the excited yellow light is mixed with the remaining blue light. This kind of white light has the advantages of simple realization and easy production. However, since this light only has yellow and blue spectrums, the reducibility of colors is still poor, especially the reducibility of red. As a result, it is not applicable in some places with high requirements for color reproduction, which affects product promotion. Contents of the invention [0003] The inv...

Claims

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Application Information

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IPC IPC(8): H01L33/50
CPCH01L2224/48091H01L2224/48247H01L2224/48257H01L2224/49109H01L2924/00014H01L33/508H01L33/504
Inventor 李钊英刘大伟周党培钟广宇文良平
Owner MLS
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