Drive apparatus of lens and exposure mechanism by motor

Details Drive apparatus of lens and exposure mechanism by motor Drive apparatus of lens and exposure mechanism by motor

1986-08-25

1987-09-22

Hix, L. T.

3542711, 354400, G03B 118

Patent

active

046951440

ABSTRACT:
Driving of camera lens (5) and driving of exposure mechanism (9) (shutter/aperture blades) are driven by a single motor (7) wherein a main body of exposure mechanism is affixed to the lens barrel, and a drive member (10) of the exposure mechanism (9) is slidably engaged to a sliding guide pin (11); and by selecting friction force between a hollow threaded driving member (1) and the threaded outer face of the lens burrel (4) appropriately, the exposure mechanism (9) can be driven through the friction force.

REFERENCES:
patent: 4041512 (1977-08-01), Iwata et al.
patent: 4141636 (1979-02-01), Shimojima
patent: 4472039 (1984-09-01), Iwata et al.
patent: 4491396 (1985-01-01), Isobe et al.
patent: 4589753 (1986-05-01), Kawai

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