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Indoor white-light LED safety test method

A technology of safety testing and white light, which is applied in the field of safety testing of indoor white light LEDs

Inactive Publication Date: 2018-06-12
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] To sum up, for the current evaluation of the photobiological safety of LED lighting products, there is still a lack of comprehensive research and corresponding testing methods for the photobiological safety of indoor white LED lighting products based on the characterization of human cells.

Method used

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  • Indoor white-light LED safety test method

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Embodiment Construction

[0017] The present invention will be further described below by specific examples. The embodiments of the present invention are to enable those skilled in the art to better understand the present invention, and do not limit the present invention in any way.

[0018] The present invention provides a method for testing the safety of indoor white light LEDs, comprising the following steps:

[0019] Step 1, irradiating skin cells and human eye cells with fluorescent powder excited white light LED as a light source; the skin cells in the step 1 are human immortalized keratinocytes HaCat and male normal glans cell line HS68; the human eye cells are human Lens epithelial cells SRA01 / 04 and human retinal pigment epithelial cells D407. In the present invention, the white light LED excited by phosphor powder is 3000K or 4000K.

[0020] Step 2. Adjust the light source to 60W / m 2 The intensity of irradiation is 1 hour for skin cells and 2 hours for human eye cells;

[0021] Step 3, us...

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Abstract

The invention relates to an indoor white-light LED safety test method. The method comprises the following steps of 1, adopting a fluorescent powder-excited white-light LED as a light source to irradiate skin cells and human eye cells; 2, adjusting the light source to be 60W / m2 in strength, irradiating skin cells for 1 hour and irradiating human eye cells for 2 hours by adopting the adjusted lightsource respectively; 3, performing calculation on the skin cells and the human eye cells in the step 2 by adopting an MTT colorimetric method to obtain the cell proliferation rate; 4, performing qualitative analysis on the cell proliferation rate to judge whether the light source is safe or not. The method is used for carrying out analysis based on the human body cell-level representation. By adopting the method, the light biological safety of indoor white-light LED illuminating products can be comprehensively, rapidly and accurately tested.

Description

technical field [0001] The invention relates to the technical field of testing indoor LED white light, in particular to a method for testing indoor white LED safety. Background technique [0002] Lighting science is the study of the demand relationship between people and light, including the perception and non-visual aspects of the visual organ. The artificial light source is the link. Common artificial light sources include thermal radiation light sources (ordinary incandescent lamps, tungsten halogen lamps), gas discharge light sources (fluorescent lamps, high-pressure sodium lamps, high-pressure mercury lamps, metal halide lamps, etc.) diodes, organic light-emitting diodes, etc.). Among them, solid-state light sources, namely light-emitting diodes (LEDs) and organic light-emitting diodes (OLEDs), are new semiconductor lighting sources at the end of the 20th century, and their technologies are currently in a period of rapid development. [1] . Under the background of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M11/00
CPCG01M11/00
Inventor 宋佳音
Owner TIANJIN UNIV