Ornamental lighting device
US3949350A · kind A · utility
Inventor
Key dates
| Filing date | Aug 7, 1974 |
| Grant date | Apr 6, 1976 |
| Priority date | — |
| Expiry date | Aug 7, 1994 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21S10/02
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
First and second groups of light bulbs of different colors are disposed on base structure within a first light transmitting enclosure. The first enclosure is preferably a prismatic dome shaped lens which operates to project images of the bulb filaments. A circuit arrangement is provided for detecting, amplifying and separating an audio signal into bass and treble audio tones. The light bulbs are connected to the circuit arrangement so that one group is driven in response to the bass tones, while the other group is driven in response to the treble tones. A second light transmitting enclosure may be mounted on the base to surround the first enclosure. The second enclosure is preferably translucent to provide a surface upon which the colors of the bulbs and the images of their filaments are projected and displayed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.