Monolithic LCD projector
US10509306B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Jan 31, 2019 |
| Grant date | Dec 17, 2019 |
| Priority date | — |
| Expiry date | Jan 31, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B21/2066
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A monolithic liquid crystal display (LCD) projector includes a light emitting diode (LED) light source, a condenser, a collimating lens, an LCD light valve, a field lens and a projection lens. The LCD light valve is disposed between the collimating lens and the field lens. The condenser is disposed between the LED light source and the collimating lens. The projection lens is disposed behind the field lens. A first reflector is disposed between the field lens and the projection lens. The first reflector conducts mirror reflection along a long axis thereof. The present disclosure has the characteristics of small volume, novel shape, good color uniformity of the image, good radiating performance and long service life.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.