1985-10-25
1988-03-22
Punter, William H.
G02B 704
Patent
active
047324554
ABSTRACT:
A lens sleeve designed to float in a lens holder. A focussing device with a servomotor and an eccentric fixed directly at the lens sleeve, with said eccentric gripping below a collar of a lens guided in the lens sleeve.
REFERENCES:
patent: 3634005 (1972-01-01), Peters et al.
patent: 3861786 (1975-01-01), Badgett
patent: 4268135 (1981-05-01), Lehto
patent: 4583823 (1986-04-01), Walczak
Landsiedel et al., "Constant Focus Image Projection", IBM Tech. Disc. Bull., 12-1970, p. 2100.
Dziemba Peter
Immerheiser Dieter
MAP Mikrofilm Apparatebau Dr. Poehler GmbH & Co KG
Punter William H.
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