Optical glass and optical product using the same
US7451620B2 · kind B2 · utility
5Cited by
4References
4Claims
0Family size
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Key dates
| Filing date | Oct 17, 2005 |
| Grant date | Nov 18, 2008 |
| Priority date | — |
| Expiry date | May 21, 2026 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C3/21
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An optical glass having a high refractive index and high dispersion characteristics that is suited to application to precision press molding to precisely mold the shape of final products for objectives not requiring grinding or polishing. An optical glass exhibiting a refractive index in the range of from 1.75 to 2.0, an Abbé number in the range of from 20 to 28.5. Optical parts comprised of this glass; press-molding materials comprised of this glass; methods of manufacturing the same; and methods of manufacturing molded glass products employing these materials.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.