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Title: Tunable electro-optic filter stack

Patent ·
OSTI ID:1495680

A holographic polymer dispersed liquid crystal (HPDLC) tunable filter exhibits switching times of no more than 20 microseconds. The HPDLC tunable filter can be utilized in a variety of applications. An HPDLC tunable filter stack can be utilized in a hyperspectral imaging system capable of spectrally multiplexing hyperspectral imaging data acquired while the hyperspectral imaging system is airborne. HPDLC tunable filter stacks can be utilized in high speed switchable optical shielding systems, for example as a coating for a visor or an aircraft canopy. These HPDLC tunable filter stacks can be fabricated using a spin coating apparatus and associated fabrication methods.

Research Organization:
Drexel Univ., Philadelphia, PA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
FG02-08ER86355
Assignee:
Drexel University (Philadelphia, PA)
Patent Number(s):
10,175,106
Application Number:
15/665,596
OSTI ID:
1495680
Resource Relation:
Patent File Date: 2017 Aug 01
Country of Publication:
United States
Language:
English

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