A lens has a lens body (1), reinforcing extensions (3 a, 3b) and a clear aperture (9) surrounded on top and bottom by lens body. The lens is suitable for spot scanning. The lens is made of a water absorbing material, such as most polymers, particularly acrylate polymers. Aluminum sheets as vapor barriers are attached on each side of the lens body. This results in excellent resistance to change or distortion in high humidity environments.
申请公布号
WO2004065998(A2)
申请公布日期
2004.08.05
申请号
WO2004US00914
申请日期
2004.01.14
申请人
LEXMARK INTERNATIONAL, INC
发明人
CANNON, ROGER, STEVEN;DODDS, DANA, ALLEN;HEINK, PHILIP, JEROME;PATERSON, ROBERT, LEROY;PAWLEY, DANIEL, EUGENE;ROUTT, WILSON, MORGAN, JR.