Optical reflection polarizer and projector comprising the same
US6592224B2 · kind B2 · utility
20Cited by
13References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 7, 2001 |
| Grant date | Jul 15, 2003 |
| Priority date | — |
| Expiry date | Nov 7, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133545
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention provides a projector that stably displays high-contrast, bright images by improving light resistance and heat resistance of a polarizer. The projector includes: a light source device; an electro-optic device that modulates light emitted from the light source device; two polarizers that are disposed respectively on a light incoming side and a light outgoing side of the electro-optic device; and a projection optical system that projects light output from the electro-optic device. At least one of the two polarizers is a structural birefringent polarizing plate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.