BLCD Backlights by PHLOX® allow you to display patterns or targets on your backlight. USB port: you can upload up to 30 monochrome images 720x720 and you can switch them with a trigger signal from 5 to 24V. Applications : Camera Calibration, Multi-lighting Environments, this backlight can be used in environments requiring multiple lighting setups within the same device. Pattern Projection, Detecting defects or inconsistencies in products with complex surfaces. PHLOX® is the only manufacturer to provide uniformity and luminance datas on the quality control seal positioned at the back of every backlight.