US 2008/0187749 A1Published application

Optical element having light influencing property

AssigneePPG Industries Ohio, Inc.

InventorsJohn J. Cael, Carol L. Knox, Jonathan M. Mack, Feng Wang, Robert S. Wenzinger

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Abstract

Provided is an optical element having at least (a) a support polymeric film layer of film material having opposing first and second sides, (b) a second polymeric film layer having opposing first and second sides, the second layer including a film material exhibiting a light influencing property, and (c) optionally, an adhesive layer interposed between and connected to at least a portion of the first side of support layer (a) and the second side of second layer (b). The film material of support layer (a) and the film material of second layer (b) are the same or different.

Claims26

Dependent claims

An optical element comprising at least

(a) a support polymeric film layer having opposing first and second sides, said layer comprising a film material,
(b) a second polymeric film layer having opposing first and second sides, said second layer comprising a film material and exhibiting a light influencing property, and
(c) optionally, an adhesive layer interposed between and connected to at least a portion of the first side of support polymeric film layer (a) and the second side of second polymeric film layer (b), wherein the film material comprising support polymeric film layer (a) and the film material comprising second polymeric film layer (b) are the same or different.

Dependencies are inferred from the claim text.

Facts

Application: 11/955,725Filed 13 Dec 2007
Priority: 11 Jan 2007
Published: 7 Aug 2008
Term ends: Not estimatedThe source records don’t support an estimate.

Classification7 codes

C09K 9/02
Tenebrescent materials, i.e. materials for which the range of wavelengths for energy absorption is changed as a result of excitation by some…
G02B 5/23
Absorbing filters: photochromic filters
G02B 5/3033
Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state: in the form of a thin…
Y10T 428/2848
Web or sheet containing structurally defined element or component and having an adhesive outermost layer: three or more layers

Family

Application60/884,424Us provisional application · filed 11 Jan 2007
Application60/956,204Us provisional application · filed 16 Aug 2007
US 2008/0187749 A1This patent

From the US filing history. Foreign family members aren’t listed.

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