Reflection preventive light-shielding screen and a process for producing the same
US4506953A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 17, 1982 |
| Grant date | Mar 26, 1985 |
| Priority date | — |
| Expiry date | May 17, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG12B17/04
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A reflection preventive light-shielding screen comprising a transparent plate and a side surface-rough relief of a cured photopolymerized resin composition formed thereon and having a striped pattern or a lattice pattern. The present reflection preventive light-shielding screen can effectively shield extraneous light rays without scattering the light rays emitted from image-indicating devices. Therefore, the present reflection preventive light-shielding screen can be advantageously used for various extraneous light rays-shielding applications. Furthermore, the present reflection preventive light-shielding screen can be produced by an extremely simple process as compared with those of the prior art.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.