Screen for a large size view field
US5863630A · kind A · utility
3Cited by
2References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 22, 1996 |
| Grant date | Jan 26, 1999 |
| Priority date | — |
| Expiry date | Nov 22, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/249992
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A screen for a large size view field is provided which is portable. The screen is formed by a plurality of screen members having a predetermined area and arranged up and down, right and left. A foamed film having bubbles therein is bonded to a back side surface of each screen member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.