Photoelectric encoder

Details Photoelectric encoder Photoelectric encoder

2006-08-29

2006-08-29

Epps, Georgia (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

C250S231160, C356S617000

Reexamination Certificate

active

07098446

ABSTRACT:
A photoelectric encoder includes an optical receipt chip on which a plurality of photodiodes (PDs) are laid out along a measurement axis “X” so that these are organized into an array. The layout pitch of PDs disposed at end portions of the array is made less than the pitch of those at a central portion of the array. Similarly the width of a light acceptance surface of the former is less than that of the latter.

REFERENCES:
patent: 4650993 (1987-03-01), Boella et al.
patent: 4778273 (1988-10-01), Michel
patent: 6965437 (2005-11-01), Mayer et al.
patent: 2001/0011699 (2001-08-01), Aoki
patent: 2 352 811 (2001-02-01), None
patent: A-60-239610 (1985-11-01), None
patent: A-61-091513 (1986-05-01), None
patent: A 7-151565 (1995-06-01), None
patent: A-11-201777 (1999-07-01), None
patent: WO 01/31292 (2001-05-01), None

Affiliated with

Also associated with

Rating

Photoelectric encoder does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Photoelectric encoder, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Photoelectric encoder will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3696869