Variable lens assembly

Details Variable lens assembly Variable lens assembly

1992-12-30

1993-08-03

Arnold, Bruce Y.

Optical: systems and elements

Lens

Fluid

359642, 359676, 359721, 359896, G02B 106, G02B 314, G02B 1500

Patent

active

052334708

ABSTRACT:
Disclosed is a variable lens assembly having a water chamber defined with a front lens holder between two flexible, transparent diaphragms and filled with a fluid, and a syringe connected to the front lens holder and controlled to vary the volume of the water chamber. The diaphragms are stretched to curve outwards and form into a biconvex lens as the plunger of the syringe is pushed forwards in compressing the fluid; the diaphragms are induced to curve inwards and form into a biconcave lens as the plunger of the syringe is pulled backwards in releasing the fluid.

REFERENCES:
patent: 504890 (1893-08-01), Ohmart
patent: 3161718 (1964-12-01), De Luca
patent: 4890903 (1990-01-01), Treisman et al.
patent: 4913536 (1990-04-01), Barnea

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