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Patent Searching and Data


Title:
METHOD AND APPARATUS FOR RADIOGRAPHIC IMAGING
Document Type and Number:
WIPO Patent Application WO2004048897
Kind Code:
A3
Abstract:
An apparatus and method for computed radiography includes a rotating laser (234) for delivering light successively to ends (242) of each of a plurality of optical fibers (218) arranged in an arc. Opposite ends of the optical fibers (218) are arranged in a linear array to a radiography plate (212) having an X-ray image formed thereon. Light emitted from the plate travels through a light guide (220) to an optical receiver (222) where an image signal is generated and set to a processor (224) to generate a representative image. The light guide (220) includes rearward and forward reflective surfaces for reflecting incoming light back and forth within the guide (220) such that substantial portion of the reflected light will travel forwardly along a path of travel to the photomultiplier tube (246). A positioning mechanism accurately positions the laser in axial and radial directions. Power for the laser is delivered through a brush and contact arrangement on the drive shaft (238). Multiple erasure operations with a relaxation period therebetween may be performed.

Inventors:
LIVINGSTON TROY W (US)
Application Number:
US0335725W
Publication Date:
May 06, 2005
Filing Date:
November 10, 2003
Export Citation:
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Assignee:
ESSEX ELECTRO ENGINEERS, INC.
LIVINGSTON, TROY, W.
International Classes:
G03B42/02; (IPC1-7): G03B42/02; G03B42/08
Foreign References:
US6696698B22004-02-24
US5408093A1995-04-18
US5087937A1992-02-11
US4950895A1990-08-21
US4409477A1983-10-11
US4343991A1982-08-10
JPH0380240A1991-04-05
JPS6093425A1985-05-25
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