Photoelectric encoder for precise measurements

Details Photoelectric encoder for precise measurements Photoelectric encoder for precise measurements

2006-08-22

2006-08-22

Luu, Thanh X. (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

Reexamination Certificate

active

07095011

ABSTRACT:
A plurality of photodiodes are disposed along a measurement axis on an optical receipt chip of a photoelectric encoder. Formed on each light acceptance surface of these photodiodes is a second optical grating which has more than one light shield portion extending in a “y” direction. Each acceptance surface has a portion that is disposed obliquely relative to the extending direction of the light shield portion.

REFERENCES:
patent: 3427463 (1969-02-01), Weyrauch
patent: 4983825 (1991-01-01), Ichikawa et al.
patent: 5841133 (1998-11-01), Omi
patent: 6476405 (2002-11-01), Henshaw
patent: 07-151565 (1995-06-01), None
WO 01/31292 A1, Displacement Measuring Device, Publication Date: May 3, 2001.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3604785