Transparent optical element with dual light-polarizing effect
US9477099B2 · kind B2 · utility
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3References
31Claims
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Assignee
Inventors
Key dates
| Filing date | Nov 21, 2012 |
| Grant date | Oct 25, 2016 |
| Priority date | — |
| Expiry date | May 21, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/3083
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A transparent optical element with dual light-polarizing effect comprises a first film forming a linear light-polarizer in a first surface portion of the element, and a second film forming a retarder plate within a second surface portion. The second surface portion is contained in the first surface portion. Such element may form an eyeglass adapted for providing stereoscopic vision by light polarization selection in the second surface portion, while providing protection against excessive light intensity in the first surface portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.