Sensor head of reflective optical encoder

Details Sensor head of reflective optical encoder Sensor head of reflective optical encoder

2004-10-15

2008-03-11

Chowdhury, Tarifur (Department: 2886)

Optics: measuring and testing

Position or displacement

Position transverse to viewing axis

Reexamination Certificate

active

07342671

ABSTRACT:
A sensor head is used with a scale having a periodic optical pattern to constitute a reflective optical encoder. The sensor head includes a light source which emits a light beam applied to the scale, a photodetector which detects a light beam reflected and modulated by the scale, and a package which contains the light source and the photodetector. The package includes a box-like housing with a flat outer bottom surface and a lid member having a light-transmitting portion in at least part of it. The light source is fixed to an inner surface of the housing. The photodetector is fixed to an inner surface of the lid member.

REFERENCES:
patent: 4703176 (1987-10-01), Hahn et al.
patent: 5995229 (1999-11-01), Omi
patent: 7064842 (2006-06-01), Yamamoto et al.
patent: 2002/0104960 (2002-08-01), Omi
patent: 2004/0119989 (2004-06-01), Mayer et al.
patent: 2006/0007451 (2006-01-01), Ito
patent: 1 014 043 (2000-06-01), None
patent: 10-132558 (1998-05-01), None
patent: 11-101660 (1999-04-01), None
patent: 2002-531818 (2002-09-01), None
patent: 2003-83771 (2003-03-01), None
patent: 2003-149005 (2003-05-01), None

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