Infrared reflecting cube-cornered sheeting
US5200851A · kind A · utility
34Cited by
22References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 13, 1992 |
| Grant date | Apr 6, 1993 |
| Priority date | — |
| Expiry date | Feb 13, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/22
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Cube-corner type retroreflective articles which retroreflect infrared light but do not substantially retroreflect visible light. The cube-corner elements comprise a polymeric matrix selected to be highly transmissive to infrared light but substantially opaque to visible light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.