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    • 51. 发明授权
    • Capsule endoscope
    • 胶囊内窥镜
    • US06855111B2
    • 2005-02-15
    • US10382501
    • 2003-03-07
    • Takeshi YokoiAkira HasegawaShinya MatsumotoTakayuki SuzukiHidetake SegawaHironobu Takizawa
    • Takeshi YokoiAkira HasegawaShinya MatsumotoTakayuki SuzukiHidetake SegawaHironobu Takizawa
    • G02B23/24A61B1/00A61B1/06H04N5/225
    • A61B1/041A61B1/0607A61B1/0684
    • A capsule endoscope is provided with lighting means for illuminating the interior of a living body, an image pickup means for capturing an image of a site illuminated by the lighting means, and a transparent cover which houses the image pickup means and the lighting means within a sealed, cylindrical-shaped capsule case. The image pickup means includes an objective optical system having a depth of field. An object within the depth of field of the objective optical system is illuminated more evenly than possible with a single lighting means by arranging multiple lighting means at the periphery of the objective optical system and causing the beams from individual lighting means to overlap in specified ways so that a nearly uniform illumination of an object of interest is achieved. Light diffusers may be employed to diffuse the light from the light sources, and a color correction filter may be used.
    • 胶囊型内窥镜设置有用于照明生物体的内部的照明装置,用于捕获由照明装置照亮的场所的图像的图像拾取装置,以及将图像拾取装置和照明装置容纳在其中的透明盖 密封的圆柱形胶囊盒。 图像拾取装置包括具有景深的物镜光学系统。 在物镜光学系统的景深范围内的物体比单个照明装置更均匀地被照射,通过在物镜光学系统的周边布置多个照明装置并且使得来自各个照明装置的光束以指定的方式重叠, 实现感兴趣对象的近似均匀的照明。 可以使用光扩散器来扩散来自光源的光,并且可以使用颜色校正滤光器。