Patent · US Active

Holographic foil and method for producing same

US9964679B2 · kind B2 · utility

0Cited by

5References

14Claims

0Family size

Assignee

OSRAM Opto Semiconductors GmbH · DE

Inventors

Stefan Morgott · Pentling, DE
Joachim Reill · Bad Kötzting, DE
Peter Brick · Regensburg, DE

Key dates

Filing date	Apr 3, 2014
Grant date	May 8, 2018
Priority date	—
Expiry date	May 21, 2034

Classification

Technology area (CPC G)Physics
CPC primaryG03H2270/23
WIPO fieldOptics
WIPO sectorInstruments

Abstract

Described is a holographic film (100) whose transmission and/or reflection properties vary periodically along at least one of its directions of principal extent, said film being designed for at least partial transmission (22, 28) of light (20, 26) of at least one first wavelength range that is irradiated from a multiplicity of periodically disposed illuminants (200) and that impinges on the holographic film (100). Also described are a lighting means (300), a backlighting means and a method for producing a holographic film (100).

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