Patent ID: 7446961

Claim:
A lens device comprising: a lens element having a major lens portion and an annular flange portion formed as an integral piece, said annular flange portion having a lateral surface tapering forward from a rear edge of said annular flange portion; a lens holder for holding said lens element therein which comprises a cylindrical frame for receiving said lens element therein and an annular flange formed as an integral part of said cylindrical frame for positioning said lens element received in said cylindrical frame in an axial direction; and fixing means for fixing said lens element to said lens holder which comprises a tapered annular clearance formed between said lateral surface of said annular flange portion of said lens element received in said cylindrical frame and said cylindrical frame and an adhesive partly filled in said tapered annular clearance; wherein said adhesive cures in a wedge-shape in said tapered annular clearance so as thereby to thrusts said lens element toward said annular flange in said axial direction.