Facsimile and static presentation processing – Facsimile – Picture signal generator
Patent
1997-03-26
1998-07-28
Coles, Edward L.
Facsimile and static presentation processing
Facsimile
Picture signal generator
358471, 358482, 348219, 359130, 2502081, H04N 104
Patent
active
057869014
ABSTRACT:
The disclose is intended to miniaturize the actuator of an image shifting mechanism, to operate the actuator at high speed, and to reduce the effect of image shifting on image resolution. In an image shifting mechanism, a pair of bimorph type piezoelectric elements are disposed on both sides of a refraction plate. The bimorph type piezoelectric elements have a cantilever structure. The base end sides of the bimorph type piezoelectric elements are bonded and secured to a stage, and the free end sides are sandwiched between an upper holding plate and a lower holding plate so as to support one end of the refraction plate. When the bimorph type piezoelectric elements are displaced, the refraction plate can be inclined around its rotation center O. In the case of this structure, the specifications of the refraction plate and the bimorph type piezoelectric elements are determined so that the relationship between the moment of inertia Ic around the rotation center of the moving portions of the image shifting mechanism and the moment of inertia Ig around the center of gravity of the image shifting mechanism is Ic/Ig.ltoreq.1.6.
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Nishikawa Masayuki
Okada Hideo
Okuda Tohru
Coles Edward L.
Lee Cheukfan
Sharp Kabushiki Kaisha
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