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.
Patent No.:
Date of Patent:
May. 30, 2000
Filed:
Aug. 27, 1998
Takeshi Ozawa, Tama, JP;
Mamoru Kaneko, Hanno, JP;
Akihiro Horii, Hachioji, JP;
Hitoshi Ueno, Hachioji, JP;
Sakae Takehana, Sagamihara, JP;
Hiroyuki Sangu, Hino, JP;
Isami Hirao, Hino, JP;
Hitoshi Mizuno, Koganei, JP;
Toshimasa Kawai, Hachioji, JP;
Hiroki Hibino, Hachioji, JP;
Hideyuki Adachi, Sagamihara, JP;
Hironobu Takizawa, Hachioji, JP;
Takefumi Uesugi, Hachioji, JP;
Masahiro Ohno, Kunitachi, JP;
Hidemichi Aoki, Tokorozawa, JP;
Jun Hiroya, Tokyo, JP;
Katsuichi Imaizumi, Hachioji, JP;
Eiji Yasuda, Hachioji, JP;
Yoshinao Oaki, Hino, JP;
Kenji Yoshino, Hachioji, JP;
Olympus Optical Co., Ltd., , JP;
Abstract
A low coherence beam emitted by a low coherence light source is split into two portions. One portion is transmitted from the outward end of a first single mode fiber via a detachable connector to a beam scanning probe, and then to a biological tissue; and the other is transmitted from an optical coupler placed midway along the light path via a second single mode fiber to a light path modifier. The light path modifier includes a galvanometer mirror to modify the light path length in accordance with a scan range, and a uniaxial stage to adjust the light path length to absorb the variation in lengths of different beam scanning probes. The light path is adjusted by the uniaxial stage such that the beam interference is detected for the scan range, to ensure stable acquisition of tomographic images.