Aperture system

Details Aperture system Aperture system

1997-09-18

1998-09-15

Lee, Eddie C.

Photography

Camera detail

Diaphragm shutter unit

396458, 396505, 396508, 396510, G03B 908, G03B 902

Patent

active

058093575

ABSTRACT:
An aperture system includes aperture blades defining an aperture opening and an aperture mechanism for moving the aperture blades, both of which are provided in a barrel. The aperture system further includes a motor, for driving the aperture mechanism, supported on a motor support fixed to the barrel, and a detecting device for detecting that the aperture mechanism is in a predetermined state. The motor is controlled based on a detection by the detecting device. The motor support is constructed so that the mounting angle of the motor is adjustable with respect to a rotation axis of the motor to change the timing of motor pulses of the motor with respect to the timing of the detection of the detection device.

REFERENCES:
patent: 3631787 (1972-01-01), Shimizu
patent: 4272175 (1981-06-01), Okura

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