Flush luminaire with optical element for angular intensity redistribution
US6565239B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 27, 2001 |
| Grant date | May 20, 2003 |
| Priority date | — |
| Expiry date | Mar 6, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A luminaire flush with a horizontal surface and comprising a housing, an optical window, a light source, and an optical element. The housing has an internal cavity disposed beneath the horizontal surface and defines an opening disposed adjacent the horizontal surface. The optical window, substantially flat and transparent, has a surface that overlays the housing opening. The light source, disposed within the housing cavity, provides a spatial light distribution pattern which defines an optical axis that is disposed substantially perpendicular relative to the optical window surface. The optical element, also disposed within the housing cavity, redistributes light rays emitted by the light source along preselected angles relative to the horizontal surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.