Title:
X線照準器の照明システム
Document Type and Number:
Japanese Patent JP4398165
Kind Code:
B2
Abstract:
The system has a long life X-ray localizer light source (10) situated at a focal spot (F1). An optical concentrator (11) focuses the X-ray localizer light from the light source to another focal spot (F2). An opaque shield (14) with an aperture (16) situated proximate to the latter focal spot has a geometrical shape so as to maximize light throughout while meeting light field edge contrast requirements of the system.
Inventors:
Ljubita Dragolyub Stevanovich
Eugene George Orchak
Frank Jacob John Muller
Dietmar Karl Thunderman
Eugene George Orchak
Frank Jacob John Muller
Dietmar Karl Thunderman
Application Number:
JP2003050274A
Publication Date:
January 13, 2010
Filing Date:
February 27, 2003
Export Citation:
Assignee:
GENERAL ELECTRIC COMPANY
International Classes:
A61B6/08; A61N5/10; G21K5/00; F21V7/00; F21V7/08; G03B42/08; G21K5/02; F21Y101/00
Domestic Patent References:
| JP1076019A | ||||
| JP61102640A | ||||
| JP58133239A | ||||
| JP244363B2 | ||||
| JP2002505437A | ||||
| JP3029040B2 | ||||
| JP2995361B2 |
Foreign References:
| US2955205 | ||||
| US4167675 | ||||
| US3851165 | ||||
| US4502147 |
Attorney, Agent or Firm:
Arakawa Satoshi
Hirokazu Ogura
Nobukazu Ito
Hirokazu Ogura
Nobukazu Ito