Patent ID: 6501585
Filing Date: 2002-12-31
Classification: G02B,H04N

Abstract:
A multi-beam exposure apparatus comprising:a plurality of light sources for irradiating light beams having predetermined wavelengths; pre-deflection optical means for applying a predetermined optical characteristic to said light beam irradiated from each of said light sources; deflection means for deflecting said light beam passing through said pre-deflection optical means to a first direction corresponding to a direction in which a rotatably formed reflection surface is rotated at a predetermined speed; image formation optical means for continuously image forming said light beams deflected in said first direction by said deflection means on an image surface; detecting means for detecting at least one of said light beams passing through said image formation optical means and outputting predetermined signals corresponding to the light beams; and an optical element arranged between said deflection means and said detecting means and changing an emission angle in correspondence to a change of a wavelength of the light irradiated from each of the plurality of light sources.