Patent · US Active

Lightguide module

US9574734B2 · kind B2 · utility

7Cited by

12References

5Claims

0Family size

Assignee

VARROC LIGHTING SYSTEMS, S.R.O. · CZ

Inventors

Pavel Sousek · Nový Jičín, CZ
Jan Martoch · Hranice, CZ
Wilfred Dejmek · Frýdek-Místek, CZ

Key dates

Filing date	Aug 5, 2011
Grant date	Feb 21, 2017
Priority date	—
Expiry date	Aug 5, 2031

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF21S43/243
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A lightguide module having a linear collimator produced from optically transparent material, a toroidal lens produced from optically transparent material, and a light source, wherein the toroidal lens is disposed between the linear collimator and the light source, at the exit of the linear collimator are found scattering elements, and wherein a light-emitting part of the light source is directed toward an entry surface of the toroidal lens and an exit surface of the toroidal lens is directed toward entry surfaces of the linear collimator. The light source may be a light-emitting diode and the toroidal lens may be a Fresnel type lens.

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