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Patent Searching and Data


Title:
POROUS FILM, OPTICAL ELEMENT, OPTICAL SYSTEM, INTERCHANGEABLE LENS, OPTICAL DEVICE AND MANUFACTURING METHOD OF POROUS FILM
Document Type and Number:
WIPO Patent Application WO/2020/196851
Kind Code:
A1
Abstract:
This silica particle-comprising porous film has a 1.1-1.25 refractive index and a 40° or greater water contact angle.

Inventors:
SUZUKI RYOKO (JP)
YONEYAMA KENJI (JP)
OSAKA MASAHIRO (JP)
Application Number:
PCT/JP2020/014100
Publication Date:
October 01, 2020
Filing Date:
March 27, 2020
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Assignee:
NIKON CORP (JP)
International Classes:
C08J9/28; C01B33/12; G02B1/118
Domestic Patent References:
WO2014175124A12014-10-30
Foreign References:
JP2005221911A2005-08-18
JP2014214063A2014-11-17
JP2006342049A2006-12-21
JP2016130290A2016-07-21
Attorney, Agent or Firm:
NAGAI, Fuyuki et al. (JP)
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