Single bi-aspherical lens

Details Single bi-aspherical lens Single bi-aspherical lens

G - Physics

02

B

88/112

G02B 3/04 (2006.01) G11B 7/135 (2006.01)

Patent

CA 1267014

ABSTRACT: Single bi-aspherical lens. A single element lens having two aspherical refractive surfaces is described, which lens comprises a lens substrate and two layers of a transparent plastics with an aspherical outer pro- file. m e lens substrate is a sphere and can be manufactured simply and cheaply.

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