Optical moving information measuring apparatus and carrier...

Details Optical moving information measuring apparatus and carrier... Optical moving information measuring apparatus and carrier...

2006-03-14

2006-03-14

Stafira, Michael P. (Department: 2877)

Optics: measuring and testing

By monitoring of webs or thread

C356S430000

Reexamination Certificate

active

07012691

ABSTRACT:
An optical moving information measuring apparatus comprising: light generating means for forming two light spots at a predetermined interval, on a surface of a moving object to be measured providing at least a light emitting source, a collimator lens for collimating light emitted from the light emitting source and an objective lens for irradiating the light passed through the collimator lens to the surface of the moving object; a beam splitter for rotating an optical axis of each of the two types of light reflected from the light spots and passed through the objective lens by a predetermined angle; a light receiving lens through which the two types of light from the beam splitter pass; a light receiving element for receiving the two types of light passed through the light receiving lens; and a processing part for calculating a time delay of one from the other of two types of output signals from the light receiving element obtained by movement of the moving object in order to obtain moving information of the moving object.

REFERENCES:
patent: 5737070 (1998-04-01), Kato
patent: 6259531 (2001-07-01), Takamiya et al.
patent: 6330065 (2001-12-01), Hill
patent: 06-034647 (1994-02-01), None
patent: 08-292263 (1996-11-01), None

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