Optical: systems and elements – Optical modulator – Light wave directional modulation
Patent
1996-05-01
1999-03-16
Nelms, David C.
Optical: systems and elements
Optical modulator
Light wave directional modulation
359554, G02F 133
Patent
active
058837337
ABSTRACT:
An apparatus for minimizing vibration of images in video cameras due to vibration of the operator's hands includes a motion detector, an electric field generator which receives information from the motion detector and generate voltages related to the horizontal and vertical motions, and a hand vibration corrector which uses the voltages from the electric field generator to control the refractive index of a medium through which the incoming video images are passing, to thereby adjust the position of the incoming images. A CCD converts the optical signals of the hand vibration correcting means into electrical signals. The refractive index of the crystal having the electro-optical effect is controlled by electrical signals and the optical source of the input images is optically corrected. Consequently, a high speed response and high precision controlled resolution are provided. Further, the apparatus has a simple structure, and therefore, it can greatly contribute to the camera image stabilization.
REFERENCES:
patent: 5000549 (1991-03-01), Yamazaki
patent: 5523887 (1996-06-01), Wight
Nelms David C.
Robbins Thomas
Samsung Electronics Co,. Ltd.
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