Point-of-purchase displays and signs with light transmitting visual effects
US5355600A · kind A · utility
Inventor
Key dates
| Filing date | Jun 6, 1991 |
| Grant date | Oct 18, 1994 |
| Priority date | — |
| Expiry date | Jun 6, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03H2227/05
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A point-of-purchase display assembly or signage includes gear discs which rotate about parallel axes and have light transforming material disposed on their outer faces. The discs are rotated (at about 10-20 rpm) to continuously change the visual perception by an observer of the light transforming material. The light transforming material may be holographic or diffraction material, or patterned metallized foil. Modules of the gears are mounted in a linear support, or in channels in a bar or plate, and are covered by a lens. Alternatively, a number of gears/discs may be connected together by chain links. All of the elements are preferably of plastic.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.