Patent · US Active

Lighting unit with compensation for output frequency, and method for determining output frequency

US8896317B2 · kind B2 · utility

1Cited by

1References

19Claims

0Family size

Assignee

NXP B.V. · NL

Inventors

Radu Surdeanu · Roosbeek, BE
Viet Nguyen Hoang · Leuven, BE
Benoit Bataillou · Evergem, BE
Pascal Bancken · Opwijk, BE
David Van Steenwinckel · Holsbeek, BE

Key dates

Filing date	Feb 9, 2009
Grant date	Nov 25, 2014
Priority date	—
Expiry date	Mar 22, 2032

Classification

Technology area (CPC H)Electricity
CPC primaryH10H20/01
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A method of determining the dominant output wavelength of an LED, includes determining an electrical characteristic of the LED which is dependent on the voltage-capacitance characteristics, and analyzing the characteristic to determine the dominant output wavelength.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.