Video projector
US5287132A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 14, 1993 |
| Grant date | Feb 15, 1994 |
| Priority date | — |
| Expiry date | Jun 14, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133385
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
It is an object of the invention to provide a video projector which can be driven by a battery and can be reduced in both size and weight. A packing case for a video projector is composed of a cabinet, which is divided into two upper and lower parts, and a cover disposed behind the cabinet. The cover is disposed removably with respect to the cabinet. By opening the cover situated behind the projector light source, a lamp forming the projector light source can be replaced easily. Also, the cover includes on the back surface thereof a battery mounting portion for mounting a battery used to drive the projector, so that the battery can be mounted to the outer back surface of the cover.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.