Image projecting unit
US5250968A · kind A · utility
8Cited by
12References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 27, 1992 |
| Grant date | Oct 5, 1993 |
| Priority date | — |
| Expiry date | May 27, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/7408
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image projecting unit is shown which comprises a structure having a display surface on which a visual image is displayed, and a lens assembly movably arranged in front of the display surface of the structure. The lens assembly has a rearmost lens which faces the display surface. A bellows is disposed between the display surface and the rearmost lens to define therebetween a sealed space, and a liquid is contained in the sealed space to optically connect the display surface and the rearmost lens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.