| 摘要 |
PROBLEM TO BE SOLVED: To provide a visual-field switching adaptor for an endoscope, which enables an endoscopic observation in a plurality of visual fields without lowering resolution by being attached to a leading end of the endoscope. SOLUTION: The visual-field switching adaptor for the endoscope has an optical element capable of obtaining a penetration state and a reflection state. By changing the state of the optical element, a first light path forming an image of a first visual field and a second light path forming an image of a second visual field are switched over. COPYRIGHT: (C)2011,JPO&INPIT
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