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Patent Searching and Data


Title:
METHOD AND APPARATUS FOR RADIOGRAPHIC IMAGING
Document Type and Number:
WIPO Patent Application WO2004040947
Kind Code:
A3
Abstract:
An apparatus and method for computed radiography includes a plurality of light emitting diodes or a movable laser as an optical pump source (16) and a plurality of transmit optical fibers (18) arranged in a linear array for transmitting pumping light to a radiography plate (12) having a latent X-ray image formed thereon. The transmitted light causes light to be emitted from the radiographic medium (12) and directed to an optical receiver (22) where an image signal responsive to the light intensity of the emitted light is generated. The image is processed to generate an image representative of the latent X-ray. An erasing of the latent x-ray image may be accomplished in the same apparatus that generates the representative image. Preferably, multiple erasure operations are performed with a relaxation period between successive erasing operations. The input to the transmit fibers mat be a ring wherein the diameter of the ring is a multiple to allow for different lengths of linear fiber ends with the fiber ends held in precise positions both at the linear end of a cut drum and at the other arcuate end of the cut drum. A method of forming the transmitting fiber head by wrapping a fiber about a cylinder drum and bonding the adjacent windings of fiber together and to the drum is also disclosed.

Inventors:
LIVINGSTON TROY W
Application Number:
US0333405W
Publication Date:
March 10, 2005
Filing Date:
October 22, 2003
Export Citation:
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Assignee:
ESSEX ELECTRO ENGINEERS, INC.
International Classes:
G01T1/29; G03B42/02; G03B42/08; H05G; (IPC1-7): G03B42/08
Foreign References:
US5530261A1996-06-25
US5065021A1991-11-12
US5266803A1993-11-30
JPS6093425A1985-05-25
US4409477A1983-10-11
US6696698B22004-02-24
US6058160A2000-05-02
US5180915A1993-01-19
US5087937A1992-02-11
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