Optical master controller

Details Optical master controller Optical master controller

G - Physics

01

D

342/17.4

G01D 5/34 (2006.01)

Patent

CA 1289225

ABSTRACT OF THE INVENTION An optical controller device employing a single rotatable light blocking plate on opposite sides of which are mounted light emitting and light receiving elements. A pattern of openings or transparent areas arcuately arranged on different circumferences of the light blocking plate determine the passage or interruption of light and thus provide output signals according to the position of rotation of an operator's handle connected to the light blocking plate. The light omitting and receiving elements are mounted on support plates configured so that a first group of the light emitting and receiving elements and a second group of the light emitting and receiving elements are symmetrically disposed on opposite sides of centerline of the light blocking plate.

562708

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