Multi-colored material using rainbow grating
US5158845A · kind A · utility
4Cited by
16References
38Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 20, 1989 |
| Grant date | Oct 27, 1992 |
| Priority date | — |
| Expiry date | Oct 20, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/1842
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A decorative multi-colored material and method of making same using rainbow gratings simultaneously evidence different color patterns which change through the color spectrum. The patterns are formed from separate impressions from different portions of a common rainbow grating to provide color differentiation. The multi-colored material may be used for a variety of applications, for example, decorative package wrappings, stickers, product enhancement and the like.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.