Title:
X RAY SPOT PHOTOGRAPHIC APPARATUS
Document Type and Number:
Japanese Patent JPS58172645
Kind Code:
A
Abstract:
The invention relates to diaphragm means arranged close to the film in an X-ray spot film device. The diaphragm means comprises a first diaphragm with several rectangular aperture sections. The sections are displaced in the horizontal direction and have different vertical dimensions. A second diaphragm assembly has vertically extending diaphragm edges. By moving the first diaphragm to different positions in the radiation path, the aperture can be adapted to exposure formats of different vertical dimensions.
Inventors:
SCHWIEKER HORT-HARTWIG (DE)
GIESCHEN KURT (DE)
GIESCHEN KURT (DE)
Application Number:
JP4329583A
Publication Date:
October 11, 1983
Filing Date:
March 17, 1983
Export Citation:
Assignee:
KONINKL PHILIPS ELECTRONICS NV (NL)
International Classes:
A61B6/00; A61B6/06; G03B42/02; (IPC1-7): A61B6/00; G03B41/16
Domestic Patent References:
| JP46024285U | ||||
| JPS5425414A | 1979-02-26 |
Attorney, Agent or Firm:
Akihide Sugimura