ERECTING EQUAL MAGNIFICATION LENS ARRAY PLATE, OPTICAL SCANNING UNIT AND IMAGE READING APPARATUS

摘要

PROBLEM TO BE SOLVED: To improve the assembling workability of an erecting equal magnification lens array plate. SOLUTION: The erecting equal magnification lens array plate 11 includes: first and second lens array plates 24 and 26 each having a plurality of convex lenses disposed on both surfaces thereof; a first light shielding member 40 having a plurality of first openings 40a; and a second light shielding member 42 having a plurality of second openings 42a. The first lens array plate 24 and the second lens array plate 26 are laminated with each other so that the corresponding pair of lenses may constitute a lens system having a common axis. The first light shielding member 40 is disposed on the first lens array plate 24 so that each of the first openings 40a may be positioned in front of a corresponding convex lens. The second light shielding member 42 is disposed on the second lens array plate 26 so that each of the second openings 42a may be positioned in front of a corresponding fourth lens 26b. The first and second openings 40a and 42a are formed so that the opening ends on a lens side become wider toward an end. COPYRIGHT: (C)2011,JPO&INPIT