Patent
1995-09-28
1996-08-20
Gellner, Michael L.
3542711, 3542351, G03B 908, G03B 907
Patent
active
055483674
ABSTRACT:
The present invention relates to an exposure adjusting apparatus having a bobbin in the form of a cylinder through which a photographing light beam is able to pass and around which a coil comprising an insulating and coated conductive wire is wound, a core fixed to and supported by the bobbin to cover at least a portion of the surface of the coil around the bobbin and having a V-shaped cut portion serving as a first pole head, the force of which acts in a direction of the surface of the coil, a rotor rotatively supported around the center of winding of the coil and having a V-shaped projection opposing the V-shaped cut portion of the core.
REFERENCES:
patent: 3185063 (1965-05-01), Ford et al.
patent: 4100558 (1978-07-01), Koike et al.
patent: 4227792 (1980-10-01), Rentschler
patent: 4609273 (1986-09-01), Kaise
patent: 4695145 (1987-09-01), Kawamoto
Chapik Daniel
Gellner Michael L.
Olympus Optical Co,. Ltd.
Weinstein Louis
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