Title:
LENS UNIT AND ENDOSCOPE
Document Type and Number:
WIPO Patent Application WO/2016/204244
Kind Code:
A1
Abstract:
This lens unit (5) is provided with: a plurality of lenses; a cylindrically shaped lens holding frame (50) for holding the plurality of lenses on the inside; a step part provided in any lens of the plurality of lenses and forming a stepped shape along the direction of the optical axis of the lens; and a protruding part protruding from the inner peripheral surface of the lens holding frame (50) according to the disposition of the lens wherein the step part is formed and protruding into a space formed by the inner peripheral surface of the lens holding frame (50) and the step part.
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Inventors:
OGAWA TOMOAKI (JP)
Application Number:
PCT/JP2016/067976
Publication Date:
December 22, 2016
Filing Date:
June 16, 2016
Export Citation:
Assignee:
OLYMPUS CORP (JP)
International Classes:
G02B7/02; A61B1/00; A61B1/04; G02B23/26
Foreign References:
| JPH09274126A | 1997-10-21 | |||
| JP2005191204A | 2005-07-14 | |||
| JP2011048123A | 2011-03-10 |
Other References:
See also references of EP 3312651A4
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (JP)
Patent business corporation Sakai international patent firm (JP)
Patent business corporation Sakai international patent firm (JP)
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