Liquid-filled variable focus lens with band actuator

Details Liquid-filled variable focus lens with band actuator Liquid-filled variable focus lens with band actuator

1994-11-08

1999-12-07

Epps, Georgia

Optical: systems and elements

Lens

Fluid

G02B 106

Patent

active

059993286

ABSTRACT:
An actuating system for liquid-filled variable focus lenses of the type where the focus is adjusted by changing the spacing between a rigid lens and a distensible membrane. The actuating system involves a finger-operated positioner which drives an elongated flexible actuating member, i.e., a thin band, which is supported in a channel to prevent buckling. The band drives one or more actuating mechanisms which are located around the periphery of the lens and which provide a mechanical advantage so that the motion of the finger-operated positioner is in a comfortable range.

REFERENCES:
patent: 504890 (1893-09-01), Ohmart
patent: 1269422 (1918-06-01), Gordon
patent: 3598479 (1971-08-01), Wright
patent: 4444471 (1984-04-01), Ford, Jr. et al.
patent: 4514048 (1985-04-01), Rogers
patent: 4913536 (1990-04-01), Barnea
patent: 5124734 (1992-06-01), Barnea
patent: 5138494 (1992-08-01), Kurtin
patent: 5229885 (1993-07-01), Quaglia
patent: 5371629 (1994-12-01), Kurtin et al.
Definition of `buckling`; "The American Heritage Dictionary-Second College Edition," Houghton Miffler, Boston, 1982.

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