Light-emitting structure and phototherapy instrument

CN116031343BActive Publication Date: 2026-08-28BEIJING TRUWIN OPTOELECTRONIC MEDICAL CO LTD
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Patent Information

Application Number
CN202211668723.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-12-24
Publication Date
2026-08-28
Estimated Expiration
2042-12-24

AI Technical Summary

Technical Problem

[0003]相关技术中，一般光疗仪仅通过设置匀光层进行匀光，但在匀光过程中仍会存在各个方向光照强度不一致的情况，导致光疗仪的匀光效果不好

Benefits of technology

1、将发光芯片设置于第一反射层与第二反射层之间，能够使得出射光线在第一反射层与第二反射层进行多次反射以达到匀光的效果，同时第二反射层包括多个同心环状的子反射层，且发光芯片正对的子反射层的反射率大于其余子反射层的反射率，能够减少发光芯片正对的子反射层的光出射率，以提升光线在发光结构中的反射次数，进而提升发光结构的光照均匀度；

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Abstract

The application relates to a light-emitting structure, comprising a circuit board, a light-emitting chip electrically connected to the circuit board, a first reflection layer arranged on the surface of the circuit board and exposing the light-emitting chip, a packaging layer arranged on the surface of the first reflection layer and covering the light-emitting chip, and a second reflection layer arranged on the surface of the packaging layer, wherein the second reflection layer comprises a plurality of sub-reflection layers, the plurality of sub-reflection layers are annular and concentrically arranged, and the reflectivity of the sub-reflection layer directly opposite to the light-emitting chip is greater than that of the other sub-reflection layers. The application helps to reduce the light-emitting rate of the sub-reflection layer directly opposite to the light-emitting chip, increase the light-emitting rate of the other sub-reflection layers, and further improve the illumination uniformity of the outgoing light.
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Citation Information

Patent Citations

  • LED package structure

    CN107482099A

  • Forwards-mounted LED chip and making method thereof

    CN108807624A

  • Display panel and pixel structure thereof

    US20200144229A1