Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
July 13, 2010
Patent Application Number
12208479
Date Filed
September 11, 2008
Patent Primary Examiner
Patent abstract
A multibeam optical scanning device includes a plurality of light sources; a collimating lens; an aperture; a cylinder lens; a light deflecting unit; a scanning optical system; and a phase adjusting element. The phase adjusting element performs phase adjustments of wavefronts of the light beams to expand a depth allowance without substantially increasing a beam spot size of each of the beam spots on the scanning surface.
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