X-ray image pickup apparatus for intraoral radiography

Details X-ray image pickup apparatus for intraoral radiography X-ray image pickup apparatus for intraoral radiography

1998-04-08

2000-03-28

Bruce, David V.

X-ray or gamma ray systems or devices

Photographic detector support

Dental

378168, 378191, A61B 614

Patent

active

06042267&

ABSTRACT:
A phosphor, an optical fiber plate containing lead particles, a CCD, and an X-ray shielding member consisting of copper tungsten are sequentially stacked on a substrate from an X-ray incident surface side and sealed in a container made of a light-shielding synthetic resin. The substrate has projecting portions projecting toward the direction of X-ray incident along three sides of the X-ray incident surface. Each of these projecting portions has an overhang portion projecting toward the optical fiber plate. The overhang portions are close to or in contact with corresponding side surfaces of the optical fiber plate so that the optical fiber plate is fixed at a predetermined position. The container has, in the inner surface, convex portions corresponding to the projecting portions, so the substrate is fixed in the container. The output signal from the CCD is sent to an external display unit via a cable extracted from the convex portion of the container through an FPC connector and an FPC provided on a surface opposite to the incident surface.

REFERENCES:
patent: 4303572 (1981-12-01), Hatanaka et al.
patent: 5228430 (1993-07-01), Sakamoto
patent: 5331166 (1994-07-01), Yamamoto et al.
patent: 5550380 (1996-08-01), Sugawara et al.

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