Liquid crystal projector
US5097323A · kind A · utility
36Cited by
8References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 19, 1989 |
| Grant date | Mar 17, 1992 |
| Priority date | — |
| Expiry date | Oct 19, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/3167
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A liquid crystal projector of the type, wherein the light emitted from a light source is split into a red beam, a green beam, and a blue beam, and these beams are applied to red-image, green-image, and blue-image display LCD panels, the red-image beam, the green-image beam, and the blue-image beam emerging from these LCD panels are combined and projected by a projection lens, thereby to form a full-color image. The projector has an optical system which guides the beams such that these beam have optical paths of the same length which extend from the light source or the LCD panels to the projection lens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.