LED illuminated plaque
US6481131B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Mar 31, 2001 |
| Grant date | Nov 19, 2002 |
| Priority date | — |
| Expiry date | Mar 31, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S362/812
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An aesthetically striking memento comprising an edge-lit translucent panel having an inscribed design, and a free-standing compact base unit with integral LED edge-lighting system. The compact base unit includes an LED light source for reflecting light upward into the translucent panel. The plaque generally comprises an acrylic panel inscribed with a reverse design on its rear face with text, logos and/or graphics and which seats within a recessed cavity in the compact base unit. A reflective material lines the floor of the cavity and surrounds a series of LEDs spaced lengthwise along the slot at the bottom of the cavity. An integral battery or A/C power receptacle provides power to the LEDs through a switch located in the compact base unit. When illuminated, the LEDs emit light upward into the translucent acrylic panel. The light is reflected forwardly from the inwardly-inscribed design and outward to a viewer, thereby accentuating the inscribed indicia carried on the panel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.