Light diffuser
US6280052A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 13, 2000 |
| Grant date | Aug 28, 2001 |
| Priority date | — |
| Expiry date | Jan 13, 2020 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2103/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A light diffuser for directing light emitted from an elongated lamp toward an area desired to be illuminated, includes a curved member that is positioned between the lamp and the area desired to be illuminated. The curved member is generally parallel to a longitudinal axis of the lamp and is symmetric about a plane that extends through the longitudinal axis. The curved member includes a first curved portion on one side of the plane of symmetry and a second curved portion on the other side of the plane of symmetry. The first curved portion extends from a first end to a second end. The first end is disposed adjacent the plane of symmetry and spaced from the lamp while the second end is disposed adjacent the lamp and spaced from the plane of symmetry. The second curved portion extends from a first end to a second end. The first end of the second curved portion is disposed adjacent the plane of symmetry and adjacent the first end of the first curved portion. The second end of the second curved portion is disposed adjacent the lamp and spaced from the plane of symmetry.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.