Patent ID: 6627871
Filing Date: 2003-09-30
Classification: G02B,G06F

Abstract:
An optical position detecting device for optically detecting a position in a predetermined region indicated by an indicator, said optical position detecting device comprising:a light retro-reflector; at least two optical transceivers, each including an optical scanning unit for angularly scanning light in a plane substantially parallel to the predetermined region and a light receiving unit for receiving reflected light from a portion of said light retro-reflector irradiated with the scanning light; and a mounting member for mounting said light retro-reflector and said optical transceivers on an apparatus having the predetermined region so that said retro-reflector and said optical transceivers are positioned outside of the predetermined region; wherein said mounting member comprises a position adjusting member for adjusting mounting positions of said light retro-reflector and said optical transceivers, said position adjusting member comprises a slide part that moves in one direction, and a guide part is provided that guides the movement of said slide part, an overlapped portion of said light retro-reflector being present at a boundary between said slide part and said guide part.