Spherical optical encoder for detecting the position and motion

Details Spherical optical encoder for detecting the position and motion Spherical optical encoder for detecting the position and motion

1991-09-03

1993-06-29

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

250221, 25023112, 340709, G01D 534

Patent

active

052237095

ABSTRACT:
A position detecting apparatus in the form of a sphere movable about three mutually orthogonal axes and employing optical encoding such as gray scale encoding and detector so positioned that motion about any of the three orthogonal axes is detected by one and only one of the detector.

REFERENCES:
patent: 3915019 (1975-10-01), Zoltan
patent: 4958071 (1990-09-01), Scott-Jackson et al.

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