发明名称 |
ENDOSCOPE AND LIGHTING DEVICE FOR ENDOSCOPE |
摘要 |
An endoscope comprises: a forward-viewing observation window in which an objective lens for forward-viewing is provided at a distal end of an insertion portion; a light-guiding plate arranged at a forward-viewing illuminating window that is formed on an outer circumferential side of the forward-viewing observation window and has a C-ring shape for guiding light falling on an incident surface formed by cutting out an outer circumferential part on a lower side of the observation field of view for forward-viewing, the light-guiding plate having a reflective surface formed on a back face to diffuse and reflect light and a transmissive surface formed on a front face to transmit light and make light exit to the observation field of view for forward-viewing as illuminating light; and a light exit portion that makes light exit to fall on the incident surface of the light-guiding plate, wherein the endoscope comprises a wedge-shaped reflective surface formed by cutting out into a wedge shape from the back face toward the front face of the light-guiding plate at a position on an upper side of the light-guiding plate. |
申请公布号 |
EP2649923(A4) |
申请公布日期 |
2014.05.28 |
申请号 |
EP20120767690 |
申请日期 |
2012.04.02 |
申请人 |
OLYMPUS MEDICAL SYSTEMS CORP.;OLYMPUS CORPORATION |
发明人 |
HONDA, KAZUKI;SHINJI, SHO;IKEDA, YUICHI |
分类号 |
A61B1/00;A61B1/06;G02B23/26 |
主分类号 |
A61B1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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