Patent ID: 6097508
Filing Date: 2000-08-01
Classification: G02B,H04N

Abstract:
An optical scanning apparatus for scanning a scanning object, comprising:a plurality of emitting devices for emitting laser lights, whose wavelengths are different from each other, respectively;a plurality of light converting devices each corresponding to respective one of said emitting devices, and for converting said laser lights emitted from said corresponding emitting devices into converted laser lights, respectively, each of the converted laser lights being approximately parallel light;a deflecting device for deflecting each of said converted laser lights in a predetermined scanning direction in order to scan said scanning object; anda converging device for converging each of said deflected laser lights on said scanning object,wherein at least one of said converted laser lights is adjusted so as to be spread or collected toward an advance direction of said at least one of said converted laser lights, by changing a first distance between said light converting device corresponding to said at least one of said converted laser lights and said emitting device corresponding to said at least one of said converted laser lights, depending on the wavelength of said at least one of said converted laser lights.