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Patent Searching and Data


Title:
NEAR INFRARED CUT FILTER GLASS AND OPTICAL FILTER
Document Type and Number:
WIPO Patent Application WO/2020/262296
Kind Code:
A1
Abstract:
An embodiment of the present invention relates to near infrared cut filter glass having an average transmittance of 50-92% at wavelengths of 400-550 nm, a transmittance of 40-92% at a wavelength of 700 nm, an average transmittance of 0.0001-70% at wavelengths of 850-950 nm, and an average transmittance of 0.0001-60% at wavelengths of 1200-2500 nm.

Inventors:
SAKAGAMI TAKAHIRO (JP)
SHIONO KAZUHIKO (JP)
Application Number:
PCT/JP2020/024387
Publication Date:
December 30, 2020
Filing Date:
June 22, 2020
Export Citation:
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Assignee:
AGC INC (JP)
International Classes:
G02B5/22; C03C3/17; C03C4/08; C03C17/32
Domestic Patent References:
WO2017094672A12017-06-08
Foreign References:
JP2017222568A2017-12-21
JPS444201B11969-02-21
JPS3925563B11964-11-12
JP2006264994A2006-10-05
US20140162863A12014-06-12
Attorney, Agent or Firm:
EIKOH PATENT FIRM, P.C. (JP)
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