The full name of CIE 177_2007 is Color Rendering of White LED Light Sources. It was prepared by CIE Technical Committee 1-62 of Division 1 “Vision and Colour” and has been approved by the Board of Administration of the Commission Internationale de I’Eclairage for studty and application, Now We will introduce the CIE 177_2007 Summary. This Technical Report reviews the applicability of the ...
Application Field: The salt spray test machine is also called the salt spray test chamber, the full name is the salt spray test chamber, which is mainly used to test the corrosion resistance of the samples. At present, it is widely used in the aerospace industry, automotive electronics, electronics and electrical, mobile phone digital, plastic products, metal materials and other industries to test...
Many customers have purchased LISUN GDJS Walk-in environmental chamber , but they will not use them frequently after purchase. It often needs to be idle for a period of time after the test, and continue to be used when they need to do test. Therefore, how to maintain the high and low temperature humidity test chamber when it is idle for a long time? The high and low temperature test chamber that h...
ISO is the worldwide union of national standards. The international standard ISO 9227 has been developed by the ISO/TC 156 Metals and Alloys Corrosion Technical Committee. There are many factors affecting metal corrosion. A single salt spray resistance cannot replace the performance of other media, so this standard cannot be used as a direct guide to the corrosion resistance of the tested material...
The oscilloscope is divided into a digital oscilloscope and an analog oscilloscope. With the development of technology, the requirements for test accuracy have been improved, and the analog oscilloscope has gradually been eliminated. Digital oscilloscopes basically support multi-level menus and can provide users with multiple choices. Also with storage, the most important indicator of a digital os...
1. Introduction of flicker parameter Flicker (light source flicker) means that the light output of the lighting source fluctuates with a certain frequency. At present, the international research results on strobe include IEEE std1789, IEC TR61547, CIE TN 006, etc. 1.1. Flicker percentage and flicker index in IEEE std1789 The flicker index refers to the area above the average light output line in a...
The full name of ISO 4892-1:2016 is Plastics-Methods of exposure to laboratory light sources-Part 1: General guidance. It was prepared by Technical Committee ISO/TC 61, Plastics, Subcommittee SC 6, Aging, chemical and environmental resistance. We will introduce the ISO 4892-1:2016-1 Scope. The following is the original content of ISO 4892-1:2016-1 Scope. This part of ISO 4892 provides information ...
LED flicker, that is, the LED liquid crystal display screen flickers. The LED liquid crystal display has a backlight strobe in low-brightness mode, similar to the old CRT display. Use your fingers to quickly shake in front of the screen to see smear. 1. LED flicker refers to two concepts: The first is flicker: the depth of fluctuating light flux of the electric light source. The greater the fluctu...
The LM-79 is the North American Lighting Association’s standard for test methods for LED products. The LM-79 is an electrical and photometric method for solid state lighting products. Test methods for all LED products, including test content: electrical parameters, color parameters, luminous flux, luminous efficiency, light intensity distribution, chroma non-uniformity. ENERGY STAR has a lar...
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