Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
GLASS COMPOSITION, OPTICAL ELEMENT AND OPTICAL DEVICE USING SAME
Document Type and Number:
WIPO Patent Application WO/2019/058618
Kind Code:
A1
Abstract:
This glass composition contains, in terms of mol%, 40-80% of Ga2O3 and 0-60% (exclusive of 0%) of a rare earth oxide, and has a maximum phonon energy of 730 cm-1 or less.

Inventors:
YOSHIMOTO KOHEI (JP)
EZURA YOSHINOBU (JP)
Application Number:
PCT/JP2018/014933
Publication Date:
March 28, 2019
Filing Date:
April 09, 2018
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
NIKON CORP (JP)
International Classes:
C03C4/12; C03C3/12; H01S3/17
Domestic Patent References:
WO2007069730A12007-06-21
Foreign References:
US5232879A1993-08-03
JPH03295828A1991-12-26
JP2009286681A2009-12-10
Attorney, Agent or Firm:
SHOYO INTELLECTUAL PROPERTY FIRM (JP)
Download PDF:
View/Download PDF      PDF Help



 
Previous Patent: OPTICAL GLASS, OPTICAL ELEMENT COMPOSED OF OPTICAL GLASS, OPTICAL SYSTEM, INTERCHANGEABLE LENS AND O...

Next Patent: OPTICAL MEASUREMENT DEVICE, OPTICAL MEASUREMENT METHOD, AND SCANNING MICROSCOPE