Invention Grant
US07927273B2 Endoscope image pickup unit for picking up magnified images of an object, a focus adjustment apparatus and method, and a focus range check apparatus and method for the same
有权
用于拾取物体的放大图像的内窥镜图像拾取单元，焦点调节装置和方法以及用于其的对焦范围检查装置及方法
- Patent Title: Endoscope image pickup unit for picking up magnified images of an object, a focus adjustment apparatus and method, and a focus range check apparatus and method for the same
- Patent Title (中): 用于拾取物体的放大图像的内窥镜图像拾取单元，焦点调节装置和方法以及用于其的对焦范围检查装置及方法
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Application No.: US11519963Application Date: 2006-09-13
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Publication No.: US07927273B2Publication Date: 2011-04-19
- Inventor: Naoki Hasegawa
- Applicant: Naoki Hasegawa
- Applicant Address: JP Tokyo
- Assignee: Olympus Corporation
- Current Assignee: Olympus Corporation
- Current Assignee Address: JP Tokyo
- Agency: Arnold International
- Agent Bruce Y. Arnold
- Priority: JP2003-091080 20030328
- Main IPC: A61B1/06
- IPC: A61B1/06
Abstract:
An endoscope image pickup unit is disclosed that captures magnified images of an object. An objective optical system of the image pickup unit includes, in order from the object side, a front lens group having positive refractive power and an aperture stop. Various conditions are satisfied so as to provide an observation scale factor in the range of about 200 to 2000 so that cellular details can be observed, as in a microscope, while keeping the objective optical system sufficiently compact for insertion within a patient. Also disclosed is a focus adjustment apparatus and method for the endoscope image pickup unit, and a focus range check apparatus and method for the endoscope image pickup unit.
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