Patent · US Expired

Lamp emitting visible and IR light

US7323809B2 · kind B2 · utility

0Cited by

9References

7Claims

0Family size

Assignee

KONINKLIJKE PHILIPS ELECTRONICS NV · NL

Inventors

Lukas Kupper · Aachen, DE
Josef Andreas Schug · Würselen, DE
Rolf Gervelmeyer · Geilenkirchen, DE

Key dates

Filing date	Jul 14, 2003
Grant date	Jan 29, 2008
Priority date	—
Expiry date	Jul 16, 2023

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF21S41/43
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A lamp radiates visible light and infrared light. The lamp bulb of the lamp includes at least a first region which is at least partly permeable to infrared light, and at least partly impermeable to visible light. At least a second region of the bulb is wholly or partly permeable at least to visible light.

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