Optical system for a luminaire
US8680756B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 23, 2009 |
| Grant date | Mar 25, 2014 |
| Priority date | — |
| Expiry date | Aug 27, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J61/025
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A HID luminaire includes a HID lamp, a reflector, and a lens. The reflector has a proximal end, a distal area, and an intermediate are positioned therebetween. The reflector has an interior surface that includes a first portion that extends from the proximal end to the intermediate area and a second portion that extends from the intermediate area to the distal end. The second portion is less light reflective than the first portion. The lens has two different diffusion rates and includes a center portion having a lens inner diameter and an outer portion surrounding the center portion. The lens inner diameter is about the same diameter as the diameter of the intermediate area. The outer portion is more diffuse than the center portion but allows light to be transmitted therethrough.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.