Patent ID: 6842274
Filing Date: 2005-01-11
Classification: B41J,G02B

Abstract:
1. A light scanner comprising: a light source of a two-dimensional array including a plurality of light source elements; a coupling lens system for collimating a light flux from said light source; a shaping lens system for shaping the light flux; a light beam deflector for deflecting and scanning the post-shaped light flux; and a scanning lens system for forming an image of the deflected and scanned light flux on a scanned medium, wherein assuming that a focal length of said coupling lens system is f, between said coupling lens system and said light beam deflection means, a slit comprising a rectangular cut for shielding a part of the light flux to limit the light flux width is placed at a location at a distance of about f from said coupling lens system in an opposite direction to said light source, wherein the slit for shielding a part of the light flux maintains the light flux width in a main scanning direction.