Patent · US Active

Concentrator fresnel lens with varying draft angle

US10139527B2 · kind B2 · utility

1Cited by

4References

13Claims

0Family size

Assignee

Saint-Augustin Canada Electric Inc. · US

Inventors

Andreas Gombert · Glückstadt, DE
Martin Neubauer · Glückstadt, DE

Key dates

Filing date	Sep 10, 2013
Grant date	Nov 27, 2018
Priority date	—
Expiry date	Nov 17, 2033

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E10/52
WIPO fieldOptics
WIPO sectorInstruments

Abstract

The present invention relates to a Fresnel lens and a respective mold, the lens comprising a plurality of draft facets, wherein the draft angle of the draft facets has at least two different angular values for two different draft facets, in particular, wherein the draft angle is bigger for a draft facet closer to the edge of the lens or, respectively, of the mold, than for a draft facet closer to the center of the lens or, respectively, of the mold.

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