Light source unit
US9678418B2 · kind B2 · utility
2Cited by
11References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 24, 2013 |
| Grant date | Jun 13, 2017 |
| Priority date | — |
| Expiry date | Oct 23, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/3167
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A light source unit includes a light source which emits a light bundle in one direction; a polarizing unit which is formed to selectively transmit a certain polarized light of a certain wavelength in the light bundle; and a reflection unit which is formed so as to delay the phase of the polarized light so that the polarized light is reflected by the polarizing unit, convert one part of the wavelength of the polarized light, and reflect the polarized light toward the polarizing unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.