Polarization conversion element and optical device
US9952368B2 · kind B2 · utility
0Cited by
8References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 27, 2014 |
| Grant date | Apr 24, 2018 |
| Priority date | — |
| Expiry date | Aug 12, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09J2483/00
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
This invention provides a polarization conversion element that is highly resistant to the heat and light that result from increased brightness levels. In said polarization conversion element, which is provided with a polarizing beam-splitter array in which polarizing beam splitters having polarization separation layers and reflecting prisms having reflective layers are bonded together in alternation, said polarizing beam splitters and reflecting prisms are bonded together by first adhesive layers each comprising a silicone adhesive.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.