Patent · US Active

Color tunable light source

US7942540B2 · kind B2 · utility

22Cited by
1References
20Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 7, 2009
Grant dateMay 17, 2011
Priority date
Expiry dateJan 27, 2030

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF21Y2115/10
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

A lighting module includes a light output window, at least one side wall that defines a cavity and a mounting plate, and at least one light source, and at least one reflector that is within the cavity. The light output window may be one of the side walls in a side-emitting configuration. The spectral distribution of the light coming out of the light output window may be changed by manipulating the relative position of the side wall to the at least one reflector that is within the cavity.

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