Camera lens driving apparatus

Details Camera lens driving apparatus Camera lens driving apparatus

1999-02-25

2000-04-18

Adams, Russell

Photography

With exposure objective focusing means, focusing aid, or...

Manually selected preset focus position or range

G03B 300, G03B 1336

Patent

active

060525371

ABSTRACT:
When a return switch gives an instruction to execute a compulsorily-placing of a focus lens to a preset position, a CPU reads the preset position from a memory and moves the focus lens to the preset position. Then, if a focus demand is operated without canceling the compulsorily-placing, the CPU moves the focus lens while gradually reducing a difference between a position designated by the focus demand and an actual position of the focus lens.

REFERENCES:
patent: 4293206 (1981-10-01), Tokutomi et al.
patent: 5826117 (1998-10-01), Kawamura et al.
patent: 5899586 (1999-05-01), Kawanami

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