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:
Nov. 01, 2005
Filed:
May. 14, 2002
Hitoshi Ueno, Hachioji, JP;
Takeshi Ozawa, Sagamihara, JP;
Kazunari Nakamura, Zama, JP;
Isami Hirao, Hachioji, JP;
Hiroshi Ibe, Yokohama, JP;
Koichi Yoshimitsu, Hino, JP;
Yuichi Morizane, Hachioji, JP;
Mamoru Kaneko, Hano, JP;
Shunya Akimoto, Hachioji, JP;
Masaki Terakubo, Sagamihara, JP;
Katsuichi Imaizumi, Hino, JP;
Nobuyuki Doguchi, Hino, JP;
Sakae Takehana, Sagamihara, JP;
Hitoshi Ueno, Hachioji, JP;
Takeshi Ozawa, Sagamihara, JP;
Kazunari Nakamura, Zama, JP;
Isami Hirao, Hachioji, JP;
Hiroshi Ibe, Yokohama, JP;
Koichi Yoshimitsu, Hino, JP;
Yuichi Morizane, Hachioji, JP;
Mamoru Kaneko, Hano, JP;
Shunya Akimoto, Hachioji, JP;
Masaki Terakubo, Sagamihara, JP;
Katsuichi Imaizumi, Hino, JP;
Nobuyuki Doguchi, Hino, JP;
Sakae Takehana, Sagamihara, JP;
Olympus Corporation, , JP;
Abstract
In a light source unit, a switchable filter section in which an RGB filter and a fluorescence observation filter can be shifted into the light path is disposed in front of a lamp. When fluorescence image mode is selected, excitation light in a part of the wavelength band of the blue wavelength band is supplied to an electronic endoscope, and the excitation light which is reflected by the subject is shielded by an excitation light shielding filter situated in front of a CCD, whereby a fluorescence image can be obtained. On the other hand, if normal-light image mode is selected, then R, G, B light is supplied sequentially, and even under illumination of B light, the color component image in the wavelength bands which are not shielded by the excitation light shielding filter are captured, thereby yielding a normal-light image also, and hence making it possible to capture both a fluorescence image and a normal-light image by means of a single image pickup element.