Integrated lamp with feedback and wireless control
US7521872B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 7, 2004 |
| Grant date | Apr 21, 2009 |
| Priority date | — |
| Expiry date | Feb 9, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/30
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lamp assembly (50) employs a reflector (52) defining a light reflecting area (53), and a heat sink (54) defining a circuit housing area (55). A LED assembly (51) is disposed within the light reflecting area (53) and heat sink (54) dissipates heat away from LED assembly (51). One or more LEDs of LED assembly (51) emit a light in response to a flow of a LED current through the LEDs. One or more optical power sensors of LED assembly (51) sense an emission of the light by LED(s). A LED driver circuit (30) is disposed within the circuit housing area (55) to control the flow of the LED current through the LED(s) as a function of a sensing of the emission of the light by the optical power sensor(s) and a desired level of one or more lighting variables associated with the LED(s).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.