The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Feb. 03, 2004

Filed:

Nov. 30, 2001
Applicant:
Inventors:

Etsuko Ohmae, Hamamatsu, JP;

Yukio Ueda, Hamamatsu, JP;

Yutaka Yamashita, Hamamatsu, JP;

Assignee:

Hamamatsu Photonics K.K., Shizouka, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B 5/05 ;
U.S. Cl.
CPC ...
A61B 5/05 ;
Abstract

An optical CT apparatus is mainly composed of a container filled with an optical interface member ; a light-projecting section, comprising a light source and an optical switch , for projecting light into the container ; a light-detecting section, comprising photodetectors and shutters , for detecting the light from the inside of the container ; and an arithmetic/control section for calculating a spatial distribution of absorption coefficient. The arithmetic/control section has a function of determining a spatial distribution of a characteristic amount concerning a part of an object to be measured according to a comparison of an optical intensity signal actually measured by each detector in a state where the container is filled with the optical interface member with an optical signal actually measured by each detector in a state where the optical interface member is partly replaced by the part of object to be measured


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