Optical potentiometer
AssigneeHoneywell Inc.
InventorEugene T. Swensen
Life of this patent
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Abstract
An optical potentiometer is disclosed having first and second variably light transmissive windows, a source of light mounted on one side of the windows and corresponding first and second light responsive devices mounted on the other side of the window in such a fashion that only one of the light responsive devices receives energizing light at a time, and a handle for moving first and second variable light transmissive windows past the corresponding first and second light responsive devices. A dwell period may be provided between the times when the first and second light responsive devices receive energizing light.
Claims30
An optical potentiometer comprising:
- first and second variable light transmissive windows;
- light source means for supplying light to one side of said windows;
- first light responsive means positioned on the other side of said windows for receiving light emitted through said first window and second light responsive means mounted on the other side of said windows for receiving light emitted through said second windows, said first and second light responsive means mounted so that only one of said first and second light responsive means receives light at any time;
- and,
- means for moving said first and second variable light transmissive windows past said first and second light responsive means.
Dependencies are inferred from the claim text.