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:
Nov. 11, 2008

Filed:

Sep. 26, 2006
Applicants:

Masahiro Toida, Kanagawa-ken, JP;

Yoshikatsu Morishima, Kanagawa-ken, JP;

Kazuhiro Tsujita, Tokyo, JP;

Hiroshi Fujita, Saitama, JP;

Inventors:

Masahiro Toida, Kanagawa-ken, JP;

Yoshikatsu Morishima, Kanagawa-ken, JP;

Kazuhiro Tsujita, Tokyo, JP;

Hiroshi Fujita, Saitama, JP;

Assignees:

Fujifilm Corporation, Tokyo, JP;

Fujinon Corporation, Saitama, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01B 9/02 (2006.01);
U.S. Cl.
CPC ...
Abstract

Low coherence light having a central wavelength λc of 1.1 μm and a full width at half maximum spectrum Δλ of 90 nm is emitted. The low coherence light has wavelength properties suited for the light absorbing properties, the diffusion properties, and the dispersion properties of living tissue. A light dividing means divides the low coherence light into a measuring light beam, which is irradiated onto a measurement target via an optical probe, and a reference light beam that propagates toward an optical path length adjusting means. A multiplexing means multiplexes a reflected light beam, which is the measuring light beam reflected at a predetermined depth of the measurement target, and the reference light beam, to form coherent light. A coherent light detecting means detects the optical intensity of the multiplexed coherent light. An image obtaining means performs image processes, and displays an optical tomographic image on a display apparatus.


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