公开(公告)号：US5016975A

公开(公告)日：1991-05-21

申请号：US364504

申请日：1989-06-08

申请人： Masahiko Sasaki ,  Tadashi Kato ,  Hiroyoshi Fujimori ,  Tatsuo Nagasaki ,  Fumiyuki Onoda ,  Toshiaki Nishikori ,  Hideo Tomabechi ,  Kazutake Sugawara ,  Kazuo Nakamura ,  Ootaro Ando ,  Koichi Karaki

发明人： Masahiko Sasaki ,  Tadashi Kato ,  Hiroyoshi Fujimori ,  Tatsuo Nagasaki ,  Fumiyuki Onoda ,  Toshiaki Nishikori ,  Hideo Tomabechi ,  Kazutake Sugawara ,  Kazuo Nakamura ,  Ootaro Ando ,  Koichi Karaki

IPC分类号： A61B1/07 ,  F21V9/40 ,  F21V11/06 ,  F21V11/14 ,  F21V14/08

CPC分类号： A61B1/0646 ,  A61B1/0669 ,  F21V11/06 ,  F21V11/14 ,  F21V9/10 ,  A61B1/07 ,  F21V14/08

摘要： An electronic endoscope having a light emitting unit for emitting illuminating light from the tip of the insertable part, a solid state imaging device at the tip for receiving an illuminated light image, a sample-holding circuit for sample-holding an output signal from the solid state imaging device, a light source for such light emitting unit and an iris device in such light source, the iris device comprising a diaphragm device for preventing the spectral characteristics of the endoscope from being changed due to the amount of light reduction which consists of a diaphragm assembly consisting of two dimensionally diaphragm units which consists of light passing openings with small sectional area and light shading parts formed by tubular surfaces surrounding the side surfaces of the openings, positioned in the beam emitted from illuminating lamp, and provided with means for turning diaphragm assembly from a position where the tubular surfaces are in parallel with the axis of the illumination beam to a position where the axes are at an angle.

摘要翻译： 一种具有用于从可插入部分的前端发射照明光的发光单元的电子内窥镜，用于接收照明光图像的尖端处的固态成像装置，用于从固体中采样保持输出信号的采样保持电路 状态成像装置，用于这种发光单元的光源和这种光源中的光圈装置，该虹膜装置包括用于防止内窥镜的光谱特性由于光减少量而改变的光圈装置，该光学装置由 隔膜组件由二维隔膜单元组成，其由具有小截面积的通光开口和由围绕开口侧表面的管状表面形成的遮光部分组成，位于从照明灯发射的光束中，并且设置有用于转动光圈的装置 从管状表面与照明器的轴线平行的位置组装 轴到一个角度的位置。