Optical two-dimensional position sensor in a control device for

Details Optical two-dimensional position sensor in a control device for Optical two-dimensional position sensor in a control device for

1998-05-27

2000-11-28

Lee, John R.

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

250225, 25023118, G01D 534

Patent

active

061538752

ABSTRACT:
An optical two-dimensional position sensor including a selective optical unit which faces, and is displaceable relative to, an integrated device. The selective optical unit is formed by a polarized light source and a filter with four quadrants which permits passage of light through two quadrants only. The selective optical unit is attached to a control lever such as to translate in a plane along a first direction and a second direction, and to pivot around an axis which is orthogonal to the preceding directions. In a transparent package, the integrated device comprises a first group of sensor elements which are spaced along the first direction, a second group of sensor elements which are spaced along the second direction and a third group of sensor elements which detect an angular position of the selective optical unit. Electronics which are integrated with the sensor elements generates a code which is associated with each position which is assumed by the selective optical unit and a control signal which corresponds to a function to be performed.

REFERENCES:
patent: 3697761 (1972-10-01), Kamachi
patent: 4458226 (1984-07-01), Cho
patent: 4459578 (1984-07-01), Sava et al.
patent: 4500867 (1985-02-01), Ishitobi et al.
patent: 4574286 (1986-03-01), Andresen
patent: 4584510 (1986-04-01), Hollow
patent: 4977361 (1990-12-01), Phillips et al.
patent: 5073711 (1991-12-01), Brininstool et al.
patent: 5450054 (1995-09-01), Schmersal
patent: 5530345 (1996-06-01), Murari et al.

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