Dual-axis optical encoder device

US6998601B2 · kind B2 · utility

Assignee

• AGILENT TECHNOLOGIES, INC. · US

Inventors

• Yee Loong Chin · Batu Gajah, MY
• Siang Leong Foo · Bukit Mertajam, MY

Key dates

• Filing date: Feb 20, 2003
• Grant date: Feb 14, 2006
• Expiry date: Jul 26, 2023

Classification

• Technology area (CPC G): Physics
• CPC primary: G01D5/347
• WIPO field: Measurement
• WIPO sector: Instruments

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.