Glass, optical glass, glass raw material for press molding, and optical element
US-9828280-B2 · Nov 28, 2017 · US
Optical glass, optical element, and method for manufacturing optical glass
US9040439B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9040439-B2 |
| Application number | US-201414190387-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 26, 2014 |
| Priority date | Mar 8, 2013 |
| Publication date | May 26, 2015 |
| Grant date | May 26, 2015 |
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Abstract
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An optical glass including B 3+ , La 3+ and Nb 5+ as cationic components constituting the glass, wherein the optical glass satisfies the following expressions represented in cation percentages: 10 cat. %≦B 3+ ≦50 cat. %; 40 cat. %≦La 3+ ≦65 cat. %; 0 cat. %≦Nb 5+ ≦40 cat. %; 80 cat. %≦(total amount of B 3+ +La 3+ +Nb 5+ )≦100 cat. %; and 0 cat. %≦Si 4+ ≦10 cat. %; 0 cat. %≦Ge 4+ ≦5 cat. %; 0 cat. %≦Mg 2+ ≦5 cat. %; 0 cat. %≦Ba 2+ ≦10 cat. %; 0 cat. %≦Ca 2+ ≦10 cat. %; 0 cat. %≦Sr 2+ ≦10 cat. %; 0 cat. %≦Zn 2+ ≦20 cat. %; 0 cat. %≦W 6+ ≦5 cat. %; 0 cat. %≦Zr 4+ ≦5 cat. %; 0 cat. %≦Ti 4+ ≦5 cat. %; 0 cat. %≦Bi 3+ ≦5 cat. %; 0 cat. %≦Ta 5+ ≦10 cat. %; 0 cat. %≦(total amount of Y 3+ +Gd 3+ )≦20 cat. %; and 0 cat. %≦(total amount of Yb 3+ +Lu 3+ )≦10 cat. %.
First claim
Opening claim text (preview).
What is claimed is: 1. An optical glass comprising B 3+ , La 3+ and Nb 5+ as cationic components constituting the glass, wherein the optical glass satisfies the following expressions represented in cation percentages: 10 cat. %≦B 3+ ≦50 cat. %; 40 cat. %≦La 3+ ≦65 cat. %; 0 cat. %≦Nb 5+ ≦40 cat. %; 80 cat. %≦(total amount of B 3+ +La 3+ +Nb 5+ )≦100 cat. %; and 0 cat. %≦Si 4+ ≦10 cat. %; 0 cat. %≦Ge 4+ ≦5 cat. %; 0 cat. %≦Mg 2+ ≦5 cat. %; 0 cat. %≦Ba 2+ ≦10 cat. %;…
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Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
- C03C3/253Primary
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
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- What does patent US9040439B2 cover?
- An optical glass including B 3+ , La 3+ and Nb 5+ as cationic components constituting the glass, wherein the optical glass satisfies the following expressions represented in cation percentages: 10 cat. %≦B 3+ ≦50 cat. %; 40 cat. %≦La 3+ ≦65 cat. %; 0 cat. %≦Nb 5+ ≦40 cat. %; 80 cat. %≦(total amount of B 3+ +La 3+ +Nb 5+ )≦100 cat. %; and 0 cat. %≦Si 4+ ≦10 cat. %; 0 cat. %≦…
- Who is the assignee on this patent?
- Univ Tokyo, Canon Kk
- What technology area does this patent fall under?
- Primary CPC classification C03C3/253. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue May 26 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).