Anti-shake, stabilized laser pointer for multimedia projector in civil field, has fixed part detecting impact zone of UV rays on screen, target and light using visible rays, where zone center is formed by shaking invisible rays on screen

摘要

The pointer has a moving part projecting UV rays that are invisible to naked eyes, towards a projection screen i.e. table. A fixed part detects an impact zone of the UV rays on the screen, a target and a light using laser-type visible rays. A center of the zone is formed by shaking the invisible rays on the screen. A UV light source is provided in the moving part, and lights an accurate zone of the screen. A communication system e.g. WiFi type communication system, allows a user to adjust a sensitivity of a movement of a visible laser point on the screen.