Projector
US6120153A · kind A · utility
14Cited by
8References
37Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 29, 1997 |
| Grant date | Sep 19, 2000 |
| Priority date | — |
| Expiry date | Oct 29, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/3105
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A projector is provided with an illuminator, dichroic mirror for splitting illumination light into a plurality of light components, a plurality of light propagating paths in which the plurality of light components are introduced to corresponding image panels. In a propagating path having a largest distance, there are provided a relay optical system having a relay lens and a field lens. The relay lens and/or the field lens have a refractive index of 1.75 or more.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.