High-efficiency polarized light source
US5073830A · kind A · utility
29Cited by
14References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 9, 1990 |
| Grant date | Dec 17, 1991 |
| Priority date | — |
| Expiry date | Jan 9, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B27/283
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical system is disclosed which combines a collimating lens with a half wave plate, a polarizing beam splitter, and imaging optics to create a polarized image of a non-polarized light source. This optical system has significant benefits of energy efficiency and brightness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.