Liquid prism device

Details Liquid prism device Liquid prism device

1988-06-10

1990-09-04

Sugarman, Scott J.

350286, G02B 314, G02B 504

Patent

active

049539566

ABSTRACT:
An optical device including a fluid filled prism that has flexible side wall portions to provide a variable lens system in conjunction with the prism. The device has translucent side walls formed in a trough shape with an open top side for conveniently changing the fluid in the prism body and thoroughly cleaning the interior side walls of the prism. The side walls of the prism are flexible through a range of spacings to provide a lens effect variation from concave to convex.

REFERENCES:
patent: 2483102 (1949-09-01), Pierson
patent: 2836101 (1958-05-01), de Swart
patent: 3514192 (1970-05-01), de la Cierva
patent: 3606523 (1971-09-01), Taylor et al.
patent: 4270981 (1981-06-01), Stark
patent: 4381895 (1983-05-01), Hughes et al.
patent: 4614405 (1986-09-01), Brandenberg et al.
Murty, M. et al., "Simple Method for Measuring the Refractive Index of a Liquid", Optical Engineering, vol. 18, No. 2, Mar. Apr. 1979.

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