NEAR INFRARED RAY ABSORBING GLASS - NIPPON ELECTRIC GLASS CO

Title:

NEAR INFRARED RAY ABSORBING GLASS

Document Type and Number:

WIPO Patent Application WO/2019/044324

Kind Code:

A1

Abstract:

Provided is a near infrared ray absorbing glass which enables thinner optical devices and has excellent weather resistance, devitrification resistance, and optical properties. The near infrared ray absorbing glass comprises, in cation%, 10 to 70% P5 +, 0 to less than 7% Na+, 3 to less than 31% R2+ (R is at least one selected from Mg, Ca, Sr, and Ba), 0.1 to 20% Mg2+, 2 to 20% Sr2+, and 0.1 to less than 9% Cu2+, and in anion%, 14.5 to 90% F- and 10 to 85.5% O2-, and is characterized by having a thickness of 0.25 mm or less.

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Inventors:

NAGANO YUTA (JP)
MURATA TETSUYA (JP)
TAKAYAMA YOSHIHISA (JP)

Application Number:

PCT/JP2018/028479

Publication Date:

March 07, 2019

Filing Date:

July 30, 2018

Export Citation:

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Assignee:

NIPPON ELECTRIC GLASS CO (JP)

International Classes:

C03C3/247; C03C4/08; G02B1/00; G02B5/22

Domestic Patent References:

WO2016152561A1	2016-09-29
WO2011118724A1	2011-09-29

Foreign References:

JP2011162409A	2011-08-25
JP2011132077A	2011-07-07
JP2006342024A	2006-12-21

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