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LED reliability test method

A test method and reliability technology, applied in the field of LED packaging, can solve the problems of no LED product reliability test, long life, high brightness, etc.

Inactive Publication Date: 2018-05-08
JIANGSU WENRUN OPTOELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In actual use, LED products are affected by external factors and cause light decay, making them unable to meet the characteristics of long life and high brightness, such as ammonia-containing environments such as ranches, toilets, and special factories.
At present, there is no reliability test for LED products in an open environment containing ammonia

Method used

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  • LED reliability test method

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Embodiment Construction

[0020] Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:

[0021] refer to figure 1 , is a schematic cross-sectional view of a specific embodiment of the LED packaging improvement process of the present invention, specifically including the following steps: Step 1, test the photoelectric parameters of the LED lamp beads and take pictures and record them; Step 2, mix concentrated ammonia water and water in a ratio of 1:10 Mix in a closed inert material container; step 3, seal the tested LED lamp beads in an airtight container without contacting the solution; step 4, test the photoelectric parameters of the lamp beads every 24 hours and take pictures to record; step 5, calculate the LED light Beads light decay in saturated water vapor containing ammonia at normal temperature and pressure.

[0022] Test photoelectric parameters before and after storage of LED lamp beads.

[0023] Store without contact with ...

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Abstract

The invention discloses an LED reliability test method comprising the following steps that step 1, the photoelectric parameter of an LED lamp bead is tested and photographed to be recorded; step 2, the ammonia water and the water are mixed in a closed inert material container according to the proportion of 1:10; step 3, the tested lamp bead is sealed in the closed container without contact of solution; step 4, the photoelectric parameter of the lamp bead is tested every 24H in a sealing way and photographed to be recorded; and step 5, the light attenuation of the LED lamp bead in the ammonia-containing saturated water vapor under the normal temperature and normal pressure is calculated. The LED product performance can be tested and judged and the product of high performance is selected tomeet the use requirements of the special environment; and the lower luminous flux attenuation value obtained by the test method indicates the longer service life of the LED product in the open ammonia-containing environment.

Description

technical field [0001] The invention relates to the technical field of LED packaging, in particular to an LED reliability testing method. Background technique [0002] In recent years, the market penetration rate of China's LED lighting has increased significantly, and it has been popularized and used in landscape lighting, road lighting, commercial lighting and other fields, and has accelerated its penetration into household lighting. LED lighting products are a rapidly emerging product in the lighting industry. The range of product applications has expanded rapidly. [0003] Compared with traditional light sources, LED lighting has the characteristics of small size, energy saving, long life, high brightness and environmental protection. After 50,000 hours of continuous operation, it can maintain more than 60% of the initial light brightness. In actual use, LED products are affected by external factors and cause light decay, which makes them unable to meet the characterist...

Claims

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Application Information

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IPC IPC(8): G01R31/26G01R31/44
CPCG01R31/2635G01R31/44
Inventor 杨琪
Owner JIANGSU WENRUN OPTOELECTRONICS