Variable-focus optical device

Details Variable-focus optical device Variable-focus optical device

1987-05-26

1990-01-09

Sugarman, Scott J.

350419, G02B 1500, G02B 314

Patent

active

048923966

ABSTRACT:
An variable-focus optical device capable of changing the focal length with excellent responsiveness and reproducibility during repetitive deformation, comprises: an elastomeric member having prescribed viscoelastic characteristics, and an aperture member having an aperture adapted for causing projection or sinking of the elastomeric member therethrough or thereat.

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