Germanium-based glass polyalkenoate cement
US-2016235884-A1 · Aug 18, 2016 · US
Plate glass
US2024182351A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2024182351-A1 |
| Application number | US-202418439145-A |
| Country | US |
| Kind code | A1 |
| Filing date | Feb 12, 2024 |
| Priority date | Jun 26, 2018 |
| Publication date | Jun 6, 2024 |
| Grant date | — |
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- Title
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- Abstract
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- Assignees and inventors
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- First independent claim
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- CPC / IPC classifications
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Abstract
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A glass sheet of the present invention is characterized in that: the glass sheet has a refractive index nd of from 1.55 to 2.30; an angle formed by a principal surface and an end surface is from 85° to 90°; and the end surface has a surface roughness Ra of 1 μm or less.
First claim
Opening claim text (preview).
1 . A glass sheet, characterized in that: the glass sheet has a refractive index nd of from 1.55 to 2.30; an angle formed by a principal surface and an end surface is from 85° to 90°; and the end surface has a surface roughness Ra of 1 μm or less. 2 . The glass sheet according to claim 1 , wherein the glass sheet has an inclined surface in at least a part of a region between the end surface and the principal surface. 3 . The glass sheet according to claim 2 , wherein the glass sheet has a plurality of inclined surfaces. 4 . The glass sheet according to claim 1 , wherein at least one of the principal surfaces has a surface roughness Ra of 100 nm or less. 5 . The high-refractive index glass according to claim 1 , wherein the glass sheet comprises as a glass composition, in terms of mass %, 10% to 60% of SiO 2 , 1% to 40% of BaO, and 0.5% to 40% of TiO 2 +La 2 O 3 . 6 . The glass sheet according to claim 1 , wherein one of the principal surfaces has an uneven structure thereon. 7 . The glass sheet according to claim 1 , wherein the glass sheet is used for a light-guiding plate of a head-mounted display.
Assignees
Inventors
Classifications
- C03C3/078Primary
containing an oxide of a divalent metal, e.g. an oxide of zinc · CPC title
- C03C3/062Primary
with less than 40% silica by weight · CPC title
- C03C3/093Primary
containing zinc or zirconium · CPC title
Surface treatment of glass, not in the form of fibres or filaments, by mechanical means (sand-blasting, grinding, or polishing glass B24) · CPC title
by a laser beam · CPC title
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Frequently asked questions
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- What does patent US2024182351A1 cover?
- A glass sheet of the present invention is characterized in that: the glass sheet has a refractive index nd of from 1.55 to 2.30; an angle formed by a principal surface and an end surface is from 85° to 90°; and the end surface has a surface roughness Ra of 1 μm or less.
- Who is the assignee on this patent?
- Nippon Electric Glass Co
- What technology area does this patent fall under?
- Primary CPC classification C03C3/078. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Thu Jun 06 2024 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). 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).