Recently, there have a new that the China Consumer Association announcement computer failure excessive radiation harassment, that easy to affect the power grid equipment and cause computer crash. The main reason is that computer power terminal radiation harassment beyond the limits specified in the national standard, and this harassment may interfere with other electronic devices work properly, e...
OLED (Organic Light Emitting Display) is a new generation of flat panel display technology after LCD, LED, CRT and PDP (Plasma Display Panel). It has significant new industry characteristics. OLED is a new type of pure solid (CRT and PDP), which is a new type of pure solid (and LCD) with advantages of LCD and CRT. Besides, OLED has advantages of self luminous (no back light source), simple struct...
Surge generator anti-interference measurement is based on the international standard IEC 61000-4-5. SG61000-5_Surge Generator 1 Test objective The entire lightning stroke in the nature (namely the indirect thunder such as the lighting stroke between the clouds, or the lighting stroke happened to the adjacent objects) can induce the surge voltage and current in outdoor aerial. Besides, huge surge ...
Abstract: According to the particularity of LED luminous flux measurement, unique optimization is adopted in the design of the integrating sphere for LED measurement combined with the diffuse materials of high reflectivity, which makes the system stability and accuracy have great improvement. The experimental results show that the system stability and consistency is much higher than other commo...
Goniophotometer is mainly used for measuring photometric characteristics of luminaries and light source; that is luminaries laser photometric and colorimetric value distribution in different spatial directions. Goniophotometer should be placed to do test in dark room. Many customers concern the size of goniophotometer. According to Energy Star IESNA-LM-79 Clause 10, For measurement of luminous int...
LISUN can provide very fine Photo Detectors. They are NIM traceable (directly compared with NIM standard head) and is validated to PTB of Germany. Photo Detector Problem of the part filtering technology: the tested light on the photo detector must be strictly uniform, otherwise even for a so called f1’=0.5% photo detector, its actual f1’ may exceed 10%. Full-filtering technology: in order to a...
At present, LED and LED lamps and lanterns can’t achieve ideal service life due to the reason of the performance of LED. The LED junction temperature in the working status is not only the direct key to its life and efficacy, but is also influenced by the thermal resistance under the same service conditions. The feasibility of the heat conduction system design of LED also directly affects the li...
When choosing the instrument to purchase or use for the application, it is very important to understand the types of instruments available for measuring color. A colorimeter or spectrophotometer can be used to measure any test substance that is itself colored or can be reacted to produce a color. Both colorimeter and spectrophotometer provide data obtained over the same range of visible wavele...
Lisun attended Hongkong Lighting Fair dated 27th October to October 30th 2012, during the exhibition, Lisun showed many high excellence testing equipments to visitors, like Goniophotometer, Surge Generator, EMC Test Systems, ESD Simulator, EMI Test Receiver, Electrical Safety Tester, Integrating Sphere, Temperature Chamber, Salt Spray Test, Environmental Test Chamber, LED Test Instruments, CFL T...
中文简体
English
Русский
Español
Português
Türkçe
العربية
Deutsch
Polski
Italiano
Français
한국어
ไทย
Tiếng Việt
日本語