As the name suggests, is to be able stroboscope flash frequency by a certain instrument, its flashing speed can be set by the user as needed. Strobe flash time is typically around a few microseconds to tens of microseconds, the flash irradiation frequent on an object, receiving light reflected from the eye can be seen after the moment the object is illuminated pattern and object motion when the flash frequency when the frequency is the same, the human eye can observe objects repeatedly to the same pattern, I feel like pattern stationary. Using this principle, one can easily observe the surface quality or health of the speed of moving objects. 

     Stroboscope currently on the market, there are two types, one is LED strobe light, a xenon strobe lamp. LED stroboscope with small size, high life, the advantages of high frequency, suitable for flash frequency greater than 200Hz high frequency applications. Stroboscope xenon lamp with high brightness single flash, flash duration is short, etc., suitable for flash frequencies below 200Hz occasions. Xenon lamp using special hard glass or quartz glass tube, filled with high purity internal xenon, with a high temperature of the glass at both ends by a special process of clicking the package shape. Xenon lamp drive circuit is more complex, relatively speaking LED strobe light, xenon strobe light volume will be relatively large, but because of the gas discharge time is short and high instantaneous brightness, high-speed imaging applications, mostly using a xenon flash lamp Miriam as a flash light.