Multifocal bi-refringent lens with matched bi-refringence

Details Multifocal bi-refringent lens with matched bi-refringence Multifocal bi-refringent lens with matched bi-refringence

G - Physics

02

B

G02B 3/10 (2006.01) A61F 2/16 (2006.01) G02B 5/30 (2006.01) G02C 7/02 (2006.01) G02C 7/06 (2006.01)

Patent

CA 2078116

Described is a multifocal bi-refringent lens system with at least two different refractive powers which are necessary for opt- ical applications. All lenses in the lens system are made from a bi-refringent polymer whose bi-refringence is adjusted by stretch- ing so that a single lens made of this polymer has these two different refractive powers.

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