Optical system having a variable focal length

Details Optical system having a variable focal length Optical system having a variable focal length

1978-04-13

1981-09-15

Clark, Conrad J.

350361, G02B 314, G02F 129

Patent

active

042893798

ABSTRACT:
It comprises a container made at least partly from a transparent material and filled with an index adapting medium. At least one of the walls of the container through which the optical axis of the system extends comprises a piezoelectric multilayer structure for modifying the curvature of the wall in accordance with the voltage applied to the multilayer structure.

REFERENCES:
patent: 3161718 (1964-12-01), De Luca
patent: 3299368 (1967-01-01), Klebba
patent: 3442570 (1969-05-01), Picker
McElroy, J. H. et al., "Laser Tuners Using Circular Piezoelectric Benders", Applied Optics, vol. 14, No. 6, Jun. 1975, 1297-1302.

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