Optical-type rotational body position detection apparatus

Details Optical-type rotational body position detection apparatus Optical-type rotational body position detection apparatus

2011-06-07

2011-06-07

Toatley, Gregory J (Department: 2877)

Optics: measuring and testing

Position or displacement

C356S426000

Reexamination Certificate

active

07957008

ABSTRACT:
An optical-type rotational body position detection apparatus includes a body being rotational in a predetermined angle at each predetermined time interval to cross an optical axis between fixed light emitting and detecting units, including a standard position hole on a rotational locus crossing the axis, and configured such that after rotating the body at one interval from a standard position at which the hole coincides with the axis, a periphery of the hole is positioned outside the periphery at the standard position. The apparatus further includes a restriction unit on a support to cross the axis and to permit light passing and to restrict a diameter of the passing light. The restriction unit restricts the diameter of the passing light to be smaller than a minimum distance within a positional displacement tolerable error range of the hole after the predetermined angled rotation of the body.

REFERENCES:
patent: 2006/0114750 (2006-06-01), Iida et al.
patent: 1 662 343 (2006-05-01), None
patent: 2000-162335 (2000-06-01), None
patent: 2004-163248 (2004-06-01), None
patent: 2007-040863 (2007-02-01), None
Japanese Office Action dated Apr. 30, 2010 and English translation thereof, issued in counterpart Japanese Application No. 2008-191643.

Affiliated with

Also associated with

Rating

Optical-type rotational body position detection apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Optical-type rotational body position detection apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical-type rotational body position detection apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2743052