公开(公告)号：US20040046865A1

公开(公告)日：2004-03-11

申请号：US10647405

申请日：2003-08-25

申请人： Olympus Optical Co., Ltd.

发明人： Hitoshi Ueno ,  Takeshi Ozawa ,  Kazunari Nakamura ,  Isami Hirao ,  Hiroshi Ibe ,  Koichi Yoshimitsu ,  Yuichi Morizane ,  Mammoru Kaneko ,  Shunya Akimoto ,  Masaki Terakubo ,  Katsuichi Imaizumi ,  Nobuyuki Doguchi ,  Sakae Takehana

IPC分类号： A61B001/06 ,  H04N007/18 ,  H04N009/47

CPC分类号： A61B1/045 ,  A61B1/00009 ,  A61B1/00059 ,  A61B1/00186 ,  A61B1/043 ,  A61B1/0638 ,  A61B1/0646 ,  A61B1/0669 ,  A61B5/0071 ,  A61B5/0084 ,  H04N2005/2255 ,  Y10S600/921

摘要： 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.

摘要翻译： 在光源单元中，在灯的前面设置有可以将RGB滤光器和荧光观察滤光器移入光路的可切换滤光器部。 当选择荧光图像模式时，蓝色波长带的波长带的一部分中的激发光被提供给电子内窥镜，被被摄体反射的激发光被位于前方的激发光屏蔽滤光器屏蔽 CCD，由此可以获得荧光图像。 另一方面，如果选择正常光图像模式，则依次提供R，G，B光，并且即使在B光照明下，也不会被激发光屏蔽屏蔽的波长带中的分色图像 过滤器被捕获，从而也产生正常光图像，因此可以通过单个图像拾取元件捕获荧光图像和普通光图像。