Variable focus optical device

Details Variable focus optical device Variable focus optical device

1987-12-23

1989-08-22

Arnold, Bruce Y.

350419, G02B 1500, G02B 314

Patent

active

048590410

ABSTRACT:
A variable focus optical device comprises a plurality of elastic bodies laminated in the optical axis direction and a driving member having an opening provided on said elastic bodies and being capable of deforming the surfaces of said elastic bodies by applying a force onto said elastic bodies by said driving member to thereby permit the portion of said elastic bodies corresponding to the innerside of said opening to be protruded or recessed, the elastic body on the side of said driving member having a modulus greater than that of the elastic body adjacent thereto on the opposite side to said driving member, and the elastic body on said driving member side having a portion with the thickness being continuously decreased toward the optical axis.

REFERENCES:
patent: 4444471 (1984-04-01), Ford, Jr. et al.

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