Optical glass
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 26, 2008
Grant Date -
Oct 12, 2006
app pub date -
Jun 12, 2006
filing date -
Dec 17, 2002
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An optical glass having a refractive index (n.sub.d) and an Abbe number (v.sub.d) which are within an area surrounded by the straight lines which are drawn by connecting point A (n.sub.d=1.835, v.sub.d=46.5), point B (n.sub.d=1.90, v.sub.d=40.0), point C (n.sub.d=1.90, v.sub.d=35.0) and point D (n.sub.d=1.835, v.sub.d=38.0) in a sequence of A, B, C, D and A as border lines in x-y coordinates shown in FIG. 1, in which X-axis is the Abbe number (v.sub.d) and Y-axis is the refractive index (n.sub.d), the area including the border line. The optical glass has low glass transition temperature (Tg), and suitable for precision mold pressing.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully