Dichroic filters on flexible polymer film substrates

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Quick Facts

Patent No.: US 7,317,576
App. No.: 11/379,774
Granted: Jan 8, 2008
Kind: B2

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Abstract

Now, according to the present invention, dichroic filters are provided that incorporate a flexible polymer film substrate, such as poly(ethylene naphthalate), onto which a dielectric and/or reflective metal stack has been formed. Filters of the present invention are durable, flexible, and lightweight, and can be advantageously used in many specialty lighting applications.

Claims (3)

1. A dichroic filter comprising:

a polymer film substrate comprising poly(ethylene napthalate);

a stack formed on said substrate, wherein said stack comprises at least 5 alternating layers of titanium dioxide and silicon dioxide and wherein said dichroic filter transmits only a subset of wavelengths in the visible spectrum of wavelengths.

Assignments (8)

CHANGE OF NAME Recorded Mar 7, 2019

From: CP FILMS INC.

To: EASTMAN PERFORMANCE FILMS, LLC

Reel/Frame 048526/0727 →

RELEASE OF SECURITY INTEREST Recorded Jul 17, 2012

From: DEUTSCHE BANK TRUST COMPANY AMERICAS, AS COLLATERAL AGENT

To: SOLUTIA INC.; CPFILMS INC.; FLEXSYS AMERICA L.P.

Reel/Frame 028563/0241 →

SECURITY AGREEMENT Recorded May 17, 2010

From: SOLUTIA INC.; CP FILMS INC.; FLEXSYS AMERICA L.P.

To: DEUTSCHE BANK TRUST COMPANY AMERICAS, AS COLLATERAL AGENT