Patent
1990-03-30
1991-02-26
Hix, L. T.
354 76, 73517A, 350500, G03B 3900, G01P 1508
Patent
active
049965450
ABSTRACT:
An apparatus for correcting a blurred image has a blurred image correcting lens which constitutes at least part of a photographing lens of a camera. The correcting lens is supported to move in a direction substantially perpendicular to an optical axis of the photographing lens. A driver for driving the correcting lens and an angular acceleration sensor which detects the angular acceleration applied to the camera, to send a drive signal to the driver, to cancel an undesirable movement of the optical axis of the photgraphing lens are provided. The angular acceleration sensor includes a rotatable sensor arm having a rotational shaft in the center of the length of the sensor arm, permanent magnets provided at the opposite ends of the sensor arm, a magnetic sensor which is opposed to one of the permanent magnets, and a coil which is opposed to the other permanent magnet and which has a winding intersecting the magnetic flux of the other permanent magnet. The blurred image correcting lens is driven in accordance with the output of the coil.
REFERENCES:
patent: 3052127 (1962-09-01), De Mott
patent: 4780739 (1988-10-01), Kawakami et al.
Enomoto Shigeo
Odano Taminori
Asahi Kogaku Kogyo Kabushiki Kaisha
Gray David M.
Hix L. T,.
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