Near-infrared absorption glass, element and filter
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 26, 2016
Grant Date -
Aug 22, 2013
app pub date -
Sep 18, 2012
filing date -
Feb 17, 2012
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The invention provides a near-infrared absorption glass, a near-infrared absorption element and a near-infrared absorption filter each with good chemical stability and transmissivity property in the visible range. When such glass is 1 mm thick, the transmissivity of such glass is more than 80% at 400 nm, and more than 85% at 500 nm. The near-infrared absorption glass comprises cations such as P5+, Al3+, Li+, R2+ and Cu2+ as well as anions such as O2− and F−, wherein the R2+ refers to Mg2+, Ca2, Sr2+ and Ba2+, and wherein the content of the said Li+ is 1-15%. Furthermore, the water resistant stability DW of the said near-infrared absorption glass is Class 1 and the acid resistant stability DA is above Class 4.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2012 Application Filing Year
- C03C Class
- 612 Applications Filed
- 516 Patents Issued To-Date
- 84.32 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- C03C Class
- 0 % this patent is cited more than
- 9 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Oct 26, 2027 |
