Camera lens focus and shutter aperture setting

Details Camera lens focus and shutter aperture setting Camera lens focus and shutter aperture setting

1993-10-29

1995-05-16

Gray, David M.

3542341, G03B 310

Patent

active

054165474

ABSTRACT:
A lens shutter camera includes a movable picture taking lens that can be moved along an optical axis and positioned at a focus setting such that a camera subject is in focus, an adjustable shutter aperture mechanism that controls the amount of ambient light passing through the picture taking lens for producing an exposure, and a drive source that moves the picture taking lens to position the lens at the focus setting; wherein movement of the picture taking lens toward the focus setting position simultaneously adjusts the shutter aperture mechanism to an exposure setting that permits a predetermined amount of ambient light necessary for proper exposure to pass through the lens.

REFERENCES:
patent: 4426145 (1984-01-01), Hashimoto
patent: 4728979 (1988-03-01), Akitake et al.
patent: 4918480 (1990-04-01), Hori
patent: 5032859 (1991-07-01), Akimoto et al.

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