Optical potentiometer

Electrical resistors – Resistance value responsive to a condition – Photoconductive

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

338 99, 338114, H01L 3108, H01C 1010

Patent

active

047960000

ABSTRACT:
Optical and digital potentiometers and controllers. In one embodiment of the invention, a paddle slider is maintained within a housing along with a light source and sensor. The amount of light received by the sensor is a function of the position of the slider and, accordingly, a control signal output may be developed corresponding to the mechanical position of the slider. In other embodiments, light sources are caused to impinge on reflective surfaces which reflect the light through a film onto additional reflective surfaces which direct the light to a sensor. The film may be of varying optical density along the length thereof such that the amount of light received corresponds to the position of the slider, or the film may be digitally encoded such that separate light beams received by the sensor will correspond to a digital position of the slider. In another embodiment, a cylindrical digitally encoded film is rotated between a light source and sensor, thereby varying the output of the sensor. In still another embodiment, a pressure bar is maintained upon a slide and transverses a switch pad which is connected to an electronic decoding circuit. As the slide is moved, the output of the switch pad changes as a digital function of the position of the slide.

REFERENCES:
patent: 3087069 (1963-04-01), Yeates
patent: 3723934 (1973-03-01), Kubitzek et al.
patent: 3859617 (1975-01-01), Oka et al.
patent: 3968006 (1976-07-01), Zimmerman
patent: 4305321 (1981-12-01), Cohn
patent: 4523090 (1985-06-01), Wagner
patent: 4570149 (1986-02-01), Thornburg et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Optical potentiometer does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Optical potentiometer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical potentiometer will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2170711

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.