Patent ID: 7436422
Filing Date: 2008-10-14
Classification: B41J

Abstract:
1. An optical unit array, comprising: a plurality of optical units each having a plurality of optical device elements arranged along a first direction, for emitting a light beam having directivity; a holding part for holding said plurality of optical units to be arranged in a second direction substantially perpendicular to said first direction; and at least one plane with which said plurality of optical units are in contact, wherein each of said plurality of optical units comprises: an aligning plate located between said reference surface and a surface opposite to said arrangement surface of said directioning plate, having two openings into which said first protruding portion and said second protruding portion are inserted, said plurality of optical device elements being attached to said aligning plate through said directioning plate, said aligning plate being used for determining positions of said plurality of optical device elements in said first direction and said second direction relative to said first protruding portion and said second protruding portion by fitting said first protruding portion and said second protruding portion into said two openings, and each of said plurality of optical device elements comprises