Title:
ENDOSCOPE
Document Type and Number:
WIPO Patent Application WO/2019/230072
Kind Code:
A1
Abstract:
This endoscope 10 comprises: a frame body 24 with an opening from a through-hole H24 on an external surface 24SA thereof; a lens 21 inserted into the through-hole H24, the distal end surface 21SA of which is disposed so as to protrude from the external surface 24SA; a first resin 40 provided between a wall surface 24SS of the through-hole H24 and a side surface 21SS of the lens 21; and a second resin 50 constituting a protruding part protruding from the distal end surface of the optical member and provided over a surface 40SA of the first resin 40, the circumference of the frame body 24 opening, and the entire outer circumferential part of the distal end surface 21SA of the lens 21. The second resin 50 contains a light-blocking particle and has a greater fracture toughness value K than that of the first resin 40.
Inventors:
IYOSHI EITA (JP)
KONNO YOSHIMI
KINOSHITA HIROAKI
KONNO YOSHIMI
KINOSHITA HIROAKI
Application Number:
PCT/JP2019/006316
Publication Date:
December 05, 2019
Filing Date:
February 20, 2019
Export Citation:
Assignee:
OLYMPUS CORP (JP)
International Classes:
A61B1/00; A61B1/07; G02B23/24; G02B23/26
Foreign References:
| JPH09234183A | 1997-09-09 | |||
| JP2008200158A | 2008-09-04 | |||
| JP2006239185A | 2006-09-14 |
Attorney, Agent or Firm:
ITOH-SHIN PATENT OFFICE (JP)
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