Optical triangulation device and method of measuring a...

Details Optical triangulation device and method of measuring a... Optical triangulation device and method of measuring a...

2004-08-06

2008-03-18

Punnoose, Roy M. (Department: 2886)

Optics: measuring and testing

Position or displacement

Triangulation

C356S624000, C356S429000

Reexamination Certificate

active

07345772

ABSTRACT:
Device and method of measuring a position of an irregular surface. The method includes projecting a spot along a first axis onto the irregular surface, focusing an image of the spot along a second axis onto a detector, wherein the second axis is non-coaxially arranged with respect to the first axis, processing signals from the detector, and calculating the position of the irregular surface based on at least one isolated desired frequency component of the signals.

REFERENCES:
patent: 4040748 (1977-08-01), Belleson et al.
patent: 4065212 (1977-12-01), Belleson et al.
patent: 4315688 (1982-02-01), Pryor
patent: 5880843 (1999-03-01), Hermosillo-Valadez et al.
patent: 2006/0256229 (2006-11-01), Wernersson

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