Title:
IMAGING METHOD OF X-RAY IMAGE TUBE AND IMAGING APPARATUS
Document Type and Number:
Japanese Patent JP2015173023
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an imaging method of an X-ray image tube capable of making up for reduction of brightness in an expansion mode and preventing reduction of resolution.SOLUTION: The imaging method of an X-ray image tube has: a normal mode in which an image in a predetermined area in an input plane of an X-ray image tube 10 is focused on an output plane 18; and an expansion mode in which a part of an image in a predetermined area in the input plane is focused on the output plane 18. An imaging apparatus 30 which uses a lens 32 having a fixed aperture 38 takes an image of the output plane 18 in the X-ray image tube 10, and adjusts the gain of the imaging apparatus 30 according to the normal mode and the expansion mode of the X-ray image tube 10.
Inventors:
KIMIJIMA TAKAYUKI
Application Number:
JP2014047854A
Publication Date:
October 01, 2015
Filing Date:
March 11, 2014
Export Citation:
Assignee:
TOSHIBA CORP
TOSHIBA ELECTRON TUBES & DEVIC
TOSHIBA ELECTRON TUBES & DEVIC
International Classes:
H01J31/50
Attorney, Agent or Firm:
樺澤 襄
Satoshi Kabazawa
Tetsuya Yamada
Satoshi Kabazawa
Tetsuya Yamada