IEC62262 for LED Luminaries IK Protection level Test
IEC62262(How to install the EUT when doing the IK degree protection test, ventilation requirements, quantity of hammer, distribution of the hammer and hammer each level corresponding), the IEC62262, IEC60598 (GB7000) and IEC60068-2-75 (GB2423.55) standards applications IK degree test with lighting. The main purpose of these standards is regulate relevant test procedures and test way of […]
How to effective to measuring LED lamp Start, Run up time and Flicker
Due to the LED solid-state lighting products have good luminous efficiency, long life and high reliability unique characteristics, so it’s became more popular by markets and customers. But at the same time, the LED solid lighting have fast response characteristics, it haven’t thermal inertia and afterglow effects, like traditional lamps, so it have big influence […]
LED reliability characteristics
LED reliability characteristics include electrostatic sensitivity characteristic, life and environment characteristics. Electrostatic sensitivity characteristic refers that LED can withstand electrostatic discharge voltage. The resistivity of some LED is high and the distance of positive and negative is short, if both ends of the electrostatic charge accumulate to a certain value, the electrostatic voltage can […]
LED Spectral Parameters
LED spectral characteristics parameters mainly include peak wavelength, spectral radiation bandwidth and spectral power distribution etc. The spectral of monochrome LED is single wave peak; peak wavelength and bandwidth can represent the characteristic, while the spectral of white LED is composed of several single spectral. The spectral characteristics of all LED can be represented by […]
Characteristics and Applications of Different Type Goniophotometer
According to IESNA-LM-79 standard, Goniophotometer is used for light intensity distribution and flux test. Accordingly, Lisun Group introduced several different types Goniophotometer, the following introduces its characteristics and application. Lisun LSG-2000 LM-79 Goniophotometer with Rotating Mirror is an automatic light distribution intensity 3D curve testing system. It can realize C-γ, A-α and B-β measurement […]
LED Test Method
Based on the actual needs of LED various applications, LED test needs to include many contents such as electrical properties, optical characteristics, switch characteristics, color characteristics, thermal characteristics and reliability. Electrical properties LED is unipolar PN junction diode that is composed of inorganic semiconductor materials, it is one kind of semiconductor PN junction […]
Characteristics and Applications of Different Type Spectrometer
According to CIE, EN and LM-79(Clause 9.1) etc standards, spectroradiometer integrating sphere system is used for all kinds of light source photometry parameters test. The following introduces Lisun several different spectrometers’ characteristics and applications briefly. LMS-9000A/LMS-9000B High precision CCD spectroradiometer. LMS-9000A is mainly used for LED light source test. Test datas meet the photo […]
LED test technology and equipment development research
Standard and test technology is an important lever to lead the development of LED semiconductor lighting industry. In recent years, with the development of LED industry, LED from device, module to lighting and display etc application product’s standards have a faster development. The international relative standardization organization has released some standards. China is also from […]
