Image pickup apparatus with optical element movable among a plurality of inclination positions
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United States of America Patent
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Oct 29, 2002
Grant Date -
N/A
app pub date -
Apr 3, 1998
filing date -
Apr 7, 1997
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An image pickup apparatus includes an image pickup element for photoelectrically converting an optical image formed on an image pickup surface and outputting a picked-up image signal, a parallel-plane plate for shifting an incident position of incident light on the image pickup surface, a plurality of recess portions which function as a plurality of restricting portions for controlling an inclination position of the parallel-plane plate by respectively coming into abutment with permanent magnets secured to the opposite ends of the parallel-plane plate and restricting the positions of the opposite ends in the direction of an optical axis, and a plurality of electromagnets for driving the parallel-plane plate to bring the parallel-plane plate into abutment with the plurality of recess portions, wherein the energization and deenergization of each of the electromagnets are controlled so that the parallel-plane plate is controlled to move among a plurality of inclination positions.
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