Reflection scale and displacement measurement apparatus...

Details Reflection scale and displacement measurement apparatus... Reflection scale and displacement measurement apparatus...

2005-12-13

2005-12-13

Pham, Hoa Q. (Department: 2877)

Optics: measuring and testing

Position or displacement

Position transverse to viewing axis

C250S231130, C250S231180

Reexamination Certificate

active

06975408

ABSTRACT:
This invention realizes a detection system which serves as a displacement measurement apparatus for optically detecting a relative position, improves the use efficiency of a light amount, and is resistant to mechanical variations. More specifically, in an optical sensor having a light source, a reflector for reflecting a divergent light beam from the light source, and a light-receiving portion for receiving a reflected light beam from the reflector. The reflector has an optical characteristic that a divergent light beam from the light source is wavefront-split into a plurality of beams and the respective split light beams are overlaid at a predetermined position.

REFERENCES:
patent: 4983825 (1991-01-01), Ichikawa et al.
patent: 5057686 (1991-10-01), Hikawa et al.
patent: 5204524 (1993-04-01), Ichikawa et al.
patent: 5534693 (1996-07-01), Kondo et al.
patent: 5909283 (1999-06-01), Eselun
patent: 6654128 (2003-11-01), Takayama et al.
patent: 6713756 (2004-03-01), Yamamoto et al.
patent: 2002/0000515 (2002-01-01), Takayama et al.

Affiliated with

Also associated with

Rating

Reflection scale and displacement measurement 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 Reflection scale and displacement measurement apparatus..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Reflection scale and displacement measurement apparatus... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3468148