Optical material and optical element
US8344094B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 8, 2009 |
| Grant date | Jan 1, 2013 |
| Priority date | — |
| Expiry date | Aug 12, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B1/04
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical material is provided that has a high transmittance, a high refractive index, a low Abbe constant, a high secondary dispersion property, and a low water absorption rate. The optical material includes a polymer of a mixture which contains: a sulfur-containing compound represented by the following general formula (1):a sulfur-containing compound represented by the following general formula (2):and an energy polymerization initiator, in which a content of the sulfur-containing compound represented by the chemical formula (2) is 10% by weight or more to 60% by weight or less, an Abbe constant (νd) of the polymer of the mixture satisfies 18<νd<23, and a secondary dispersion property (θg,F) thereof satisfies 0.68<θg,F<0.69.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.