Reflector structure
US4208090A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 22, 1976 |
| Grant date | Jun 17, 1980 |
| Priority date | — |
| Expiry date | Dec 22, 1996 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01F9/553
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
There is disclosed a reflector structure that is highly visible both in daylight and at night, the structure including a body of transparent material having a front face and a rear face, the rear face including a continuous support surface having therein a plurality of recesses each defining a cell surrounded by a support wall, a plurality of retrodirective reflector elements disposed in the recesses for reflecting light falling upon the front face back toward the source thereof to render the reflector structure highly visible at night, and a backing member covering the rear face and hermetically sealed to the support surface thus hermetically to seal each of the cells to prevent entry of water, dirt and the like thereinto so as to preserve the reflecting properties of the reflector elements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.