Invention Grant
- Patent Title: Endoscope
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Application No.: US14724177Application Date: 2015-05-28
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Publication No.: US09808141B2Publication Date: 2017-11-07
- Inventor: Nobuhiko Sone , Hideyasu Takato
- Applicant: OLYMPUS CORPORATION
- Applicant Address: JP Tokyo
- Assignee: OLYMPUS CORPORATION
- Current Assignee: OLYMPUS CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Andrews Kurth Kenyon LLP
- Priority: JP2013-108141 20130522
- Main IPC: G02B23/24
- IPC: G02B23/24 ; G02B23/26 ; A61B1/06 ; A61B1/00 ; A61B1/05

Abstract:
An endoscope includes an observation optical system that allows a magnified observation close to a subject, and illumination optical systems. In a close observation, ITM is a maximum brightness within an observation view field angle, and ITC is a center brightness. In a normal observation IWC is a center brightness, and IWS is a brightness at a position of 80% of a maximum view angle. The following is satisfied: 0.3
Public/Granted literature
- US20150257630A1 Endoscope Public/Granted day:2015-09-17
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