Screen assembly and reflex type screen assembly
US6046845A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 9, 1998 |
| Grant date | Apr 4, 2000 |
| Priority date | — |
| Expiry date | Jun 9, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B21/58
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A reflex type screen assembly and a screen assembly which are simple in structure, low in cost, superior in durability, compact in size and superior in storage property and portability in comparison with the conventional example. The reflex type screen assembly, for reflecting a projection beam from a projecting device such as a projector is provided in which a screen winding receiver for winding and receiving a screen member having a flexibility is provided within a case member having a grip portion. A pair of screen support members for supporting the screen member when the screen member is drawn upwardly are pivoted on right and left sides of the case member, on the other hand, the leg members 6 are pivoted on the right and left sides of the case member. The leg members 6 are angularly moved downwardly to support and retain the case member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.