Patent ID: 6466245
Filing Date: 2002-10-15
Classification: B41J,G02B

Abstract:
A rod lens array comprising:a plurality of rod lenses arranged cyclically in a predetermined direction, wherein the cyclical arrangement of said plurality of rod lenses has a pitch; a substance filled in gaps separating said plurality of rod lenses: and a pair of side panels sandwiching said plurality of rod lenses and said substance, the side panels having a cyclical structure at least at the sides thereof facing the rod lenses, wherein the cyclical structure of said side panels has a pitch; wherein said rod lens array satisfies one of the two formulas shown below: P2/P1<0.6 or0.9<P2/P1<1.1, where P1 is the pitch of arrangement of said plurality of rod lenses and P2 is a half of the pitch of cyclical structure of the side panels.