Laser Detection Cards

Credit-card sized (86 x 54 mm) plastic laser detection cards for simple alignment, location and safety visualization of laser light. A photosensitive region extending to the card edges shows weak laser beams, reflections and scattered IR light. Cards cover visible and near-IR ranges, e.g. 400-640 + 800-1700 nm or 790-840 + 870-1070 + 1500-1590 nm, and need charging with visible or daylight before use.