Title:
NEAR-INFRARED ABSORPTION FILTER GLASS
Document Type and Number:
Japanese Patent JP2017165641
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide near-infrared absorption filter glass which has desirable near-infrared absorption properties and excellent weather resistance and vitrification stability and furthermore is less susceptible to cracks or fractures in an annealing step after being formed.SOLUTION: The near-infrared absorption filter glass contains, in mass%, POof 65 to 80%, SiOof 1 to 10%, AlOof 7 to 25%, RO of 0.1 to 14% (R is at least one element selected from Li, Na and K), R'O of 1.5 to 20% (R' is at least one element selected from Mg, Ca, Sr, Ba and Zn), MgO of 1.5 to 20%, and CuO of 1 to 15%, and has a mass ratio PO/SiOof 10 to 80.SELECTED DRAWING: Figure 1
Inventors:
KONOSHITA SATOKO
NAGANO YUTA
NAGANO YUTA
Application Number:
JP2016233830A
Publication Date:
September 21, 2017
Filing Date:
December 01, 2016
Export Citation:
Assignee:
NIPPON ELECTRIC GLASS CO
International Classes:
C03C4/08; C03C3/062; G02B5/22
Domestic Patent References:
| JPH06107428A | 1994-04-19 | |||
| JPH04104918A | 1992-04-07 | |||
| JPH0365521A | 1991-03-20 | |||
| JP2000511868A | 2000-09-12 | |||
| JPH01242440A | 1989-09-27 | |||
| JPS569242A | 1981-01-30 | |||
| JPH02263730A | 1990-10-26 | |||
| JPH01167257A | 1989-06-30 | |||
| JPS6325245A | 1988-02-02 | |||
| JP2010008908A | 2010-01-14 |
Foreign References:
| US5234871A | 1993-08-10 |
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