Projection apparatus
US5860720A · kind A · utility
32Cited by
4References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 1, 1996 |
| Grant date | Jan 19, 1999 |
| Priority date | — |
| Expiry date | Oct 1, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/3141
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A light source for use in a liquid-crystal rear projector serving as a projection apparatus can be changed from a front to thereby improve a performance of the apparatus. The liquid-crystal rear projector serving as the projection apparatus includes a light source accommodating portion provided at a front for accommodating therein a lamp house having a lamp light source, the lamp house being of a cartridge type accommodated in the light source accommodating portion, and a handling portion disposed at a front of the accommodated lamp house for explaining how to exchange the lamp house.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.