Dual-axis optical encoder device

Details Dual-axis optical encoder device Dual-axis optical encoder device

2006-02-14

2006-02-14

Porta, David (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

C356S615000

Reexamination Certificate

active

06998601

ABSTRACT:
A dual-axis optical encoder device is disclosed. The optical encoder includes a substrate having a first surface and a second surface opposite the first surface and a first optical encoder on the first surface of a substrate and a second optical encoder on the second surface of the substrate. Each optical encoder includes an optical emitter and an optical detector. The dual-axis optical encoder device provides, within a single device, the ability to acquire movement information on two different axes.

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patent: 6797636 (2004-09-01), Tews et al.
patent: 6803560 (2004-10-01), Okumura et al.

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