Method and apparatus for surface configuration measurement

Details Method and apparatus for surface configuration measurement Method and apparatus for surface configuration measurement

2005-09-06

2005-09-06

Rosenberger, Richard A. (Department: 2877)

Optics: measuring and testing

Shape or surface configuration

Triangulation

C356S618000, C250S23700G

Reexamination Certificate

active

06940608

ABSTRACT:
A method and an apparatus for surface configuration measurement of the present invention use stereoscopic lattice type of moiré optics as testing optics. The moiré optics accurately shifts moiré fringes of particular fringe order by a preselected phase without any shift error. A line sensor camera, which is a specific form of a camera, limits a measurement range to the vicinity of the particular fringe order. The camera outputs at least three moiré image data shifted in phase. A phase shifting method can therefore be easily applied to the stereoscopic lattice type of moiré optics without giving any consideration to the accurate phase shift of the entire fringe orders. The apparatus can measure the surface configuration of a work with high accuracy.

REFERENCES:
patent: 6690474 (2004-02-01), Shirley
patent: 2-201142 (1990-08-01), None
patent: 4-147001 (1992-05-01), None
patent: 4-169840 (1992-06-01), None
patent: 7-332956 (1994-06-01), None
patent: 7-332956 (1995-12-01), None
patent: 10-54711 (1996-08-01), None
patent: 10-54711 (1998-02-01), None

Affiliated with

Also associated with

Rating

Method and apparatus for surface configuration measurement does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for surface configuration measurement, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for surface configuration measurement will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3385090