Indirect fluorescent lighting fixture
US5709460A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 17, 1996 |
| Grant date | Jan 20, 1998 |
| Priority date | — |
| Expiry date | Dec 17, 2016 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2113/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An indirect fluorescent lighting fixture for recessed mounting in a grid-type ceiling, comprising an elongated dome having an arcuate cross section and two elongated coves, each capable of holding at least one fluorescent light bulb. Each cove is mounted along a longitudinal edge of the dome. The inner face of the dome points in the downward direction and is capable of reflecting light. Each cove has an outer wall, a base and an inner wall. The outer wall of each cove is attached to an elongated edge of the dome. The base of each cove extends toward the center of the dome. The dome overlaps the opening in the ceiling grid so that the coves are hidden from view behind the ceiling panels on either side of the opening. Light from fluorescent light bulbs mounted in the coves is directed upward to the inner face of the dome where it is reflected down into the room. When the fixture is mounted recessed in a ceiling, the light bulbs in the coves and the ends of the dome are invisible to occupants of the room.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.