Reflector structure
US4498733A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 2, 1982 |
| Grant date | Feb 12, 1985 |
| Priority date | — |
| Expiry date | Jul 2, 2002 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01F9/553
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A reflector structure for reflecting light back toward the source thereof and adapted to be secured to an associated support surface, the reflector structure comprising a lens member of light-transmitting synthetic resin having a front face and a rear face. The lens member has a plurality of integrally formed retrodirective reflector elements formed in the rear face and extending outwardly therefrom. Each of the reflector elements in use is individually surrounded by a peripheral wall defining a cell around the individual reflector element. The peripheral walls extend between the plane of the rear face of the lens member and the plane of the associated support surface, the lens member being adapted to be sealed to the associated support surface. In a preferred embodiment the peripheral walls are formed in the lens member, which may be incorporated as part of a pavement marker whereby the peripheral walls defining individual cells significantly increase the impact resistance of the marker while eliminating the need for metallizing and filling of the marker.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.