Patent · US Active

Optical element and method for producing same

US12066699B2 · kind B2 · utility

0Cited by

2References

22Claims

0Family size

Assignee

siOPTICA GmbH · DE

Inventors

Andreas Bregulla · Duderstadt, DE
André Heber · Weimar, DE
Markus Klippstein · Jena, DE

Key dates

Filing date	Oct 11, 2021
Grant date	Aug 20, 2024
Priority date	—
Expiry date	Oct 11, 2041

Classification

Technology area (CPC G)Physics
CPC primaryG02F2203/62
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A two-dimensionally extensive optical element having a light entry side and a light exit side. The optical element includes alternating transparent first regions and second regions having materials with different first refractive indices and second refractive indices. The first refractive index is higher than the second refractive index. First layers and second layers which are opaque or are switchable to be opaque are arranged at the light entry surfaces and light exit surfaces of the second regions. When the layers are opaque, the propagation directions of light passing through the optical element are limited compared to layers which are switched to be transparent.

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