Radiant energy – Photocells; circuits and apparatus – Photocell controlled circuit
Patent
1995-06-07
1998-03-17
Westin, Edward P.
Radiant energy
Photocells; circuits and apparatus
Photocell controlled circuit
250214R, 250221, 25023113, 345158, H01J 4014, G01V 904
Patent
active
057290091
ABSTRACT:
A method for generating quasi-sinusoidal signals includes illuminating an object capable of diffusely scattering Eight, focusing a portion of the scattered light on a multi-element sensor to form an image, and matching the image size to the size of the sensor elements.
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Bidiville Marc
Dandliker Rene
Lee John R.
Logitech Inc.
Westin Edward P.
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