Apparatus and method for fabricating a sandwich lens

Details Apparatus and method for fabricating a sandwich lens Apparatus and method for fabricating a sandwich lens

1984-10-15

1987-10-06

Corbin, John K.

350417, 350320, G02B 110

Patent

active

046978666

ABSTRACT:
An improved composite lens is described which provides higher optical transmittance and lower weight and cost than a conventional ZnSe/ZnS doublet. A method of manufacture is also described which uses a process of chemical vapor disposition of one material (e.g. ZnSe) on a blank of another material (e.g. ZnS), combined with well-known optical machining and polishing processes to obtain the desired curvatures on the lens surfaces.

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