1981-12-11
1984-07-17
Punter, William H.
350255, G02B 702
Patent
active
044602456
ABSTRACT:
A lens mounting having a focusing actuator movable on a fixed barrel to effect focusing, wherein as the ambient temperature changes, the shift of the terminal position of the aforesaid focusing actuator is compensated for.
REFERENCES:
patent: 3095794 (1963-07-01), Raab
patent: 3841735 (1974-10-01), Katagiri et al.
patent: 4166675 (1979-09-01), Kanno
Canon Kabushiki Kaisha
Punter William H.
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