Displacement sensor equipped with automatic setting device...

Details Displacement sensor equipped with automatic setting device... Displacement sensor equipped with automatic setting device...

2006-03-13

2008-08-19

Pham, Hoa Q (Department: 2886)

Optics: measuring and testing

Position or displacement

Reexamination Certificate

active

07414735

ABSTRACT:
A displacement sensor includes: a light projecting element for illuminating a measurement aim object at a predetermined angle with light; a light receiving element for receiving a reflected light from the measurement aim object illuminated with light; an automatic measurement aim region setting device for automatically setting measurement regions for respective acquired two reflecting surfaces by automatically increasing a light emitting quantity of the light projecting element by a predetermined quantity at a time from a predetermined value of the light projecting element till two or more reflecting surfaces of the measurement aim object are acquired on the light receiving element; and a displacement measuring device performing desired measurement of displacement based on a received light image on the light receiving element.

REFERENCES:
patent: 6724491 (2004-04-01), Matsunaga et al.
patent: 2004-245200 (2004-03-01), None
patent: WO 01/57471 (2001-08-01), None

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