Brainvision Inc. will release a new high-powered LED illumination system as an option for MiCAM ULTIMA and MiCAM02 imaging systems. There will be three models available. LEX2-B has a blue LED (peak 465nm), LEX2-G has a green LED (peak 525nm), and LEX2-R has a red LED (peak 620nm).

Xenon and Mercury light sources have problems such as large arc fluctuations and bulbs with short lifetimes. Halogen bulbs provide more stable lighting with reduced noise, but these bulbs also have a very short lifetime. However, LED's last for several years, up to 10 years in some cases, if the temperature is controlled. Furthermore, its intensity is more stable than halogen lamps and does not produce any flicker or large arc fluctuations. LEDs have an electrical shutter system, which will not cause any vibration. LEDs are an ideal illumination source for high speed imaging.

LEX2-B has a blue LED, with a peak wavelength at 465nm, and its 50% wavelength range is at 455nm - 480nm. The flicker is less than 0.1%, and the intensity drift is less than 0.1% in 30 seconds by use of a feedback circuit. It will be the brightest and most stable LED system developed by Brainvision.

All LEX2 LED systems include course and fine intensity dials for brightness adjustment, a shutter input for connection with MiCAM systems, an output for voltage feedback to maintain stable light intensity, and a remote control input. Circuit boards also include safety designs to prevent excessive heat and current to LED system.