Patent · US Active

Device for coupling the light of multiple light sources

US7437034B2 · kind B2 · utility

11Cited by

5References

13Claims

0Family size

Assignee

Barco, Naamloze Vennootschap · BE

Inventors

Peter Gerets · Roeselare, BE
Chris Colpaert · Lovendegem, BE

Key dates

Filing date	Jul 17, 2006
Grant date	Oct 14, 2008
Priority date	—
Expiry date	Jul 17, 2026

Classification

Technology area (CPC G)Physics
CPC primaryG02B6/0018
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A device for coupling the light of multiple light sources (2, 3) that substantially consists of a reflectance surface (10, 11) for one or more of said light sources (2, 3) and at least one integration rod (14) having an incident surface (15), whereby the reflectance surfaces (10, 11) are positioned in light bundles (12) emitted by the light sources (2, 3) between said light sources (2, 3) and said integration rod (14); whereby the spot of each light source (2, 3) at its focal point has a surface that is smaller than the surface of said incident surface (15); and whereby said light bundles (12) enter the integration rod (14) at different parts of its incident surface (15).

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