OPTICAL ELEMENT AND METHOD OF MANUFACTURING SUCH AN OPTICAL ELEMENT

Title:

OPTICAL ELEMENT AND METHOD OF MANUFACTURING SUCH AN OPTICAL ELEMENT

Document Type and Number:

WIPO Patent Application WO2002067020

Kind Code:

A3

Abstract:

The invention relates to an optical element comprising a substrate which is provided with a transparent layer comprising an organic polymer network and one or more photochromic compounds, in which the transmission of the optical element in the visible wavelength range changes in response to a variation of incident light, while the transparent layer comprising photochromic compounds is provided with a protective coating on the side remote from the substrate side.

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Inventors:

RIETJENS GERARDUS H
BERNARDS THOMAS N M
PEETERS MARTINUS P J
DE VRIES GOSSE C
WERKMAN PIETER J
COMPEN JOHANNES M A A

Application Number:

PCT/IB2002/000067

Publication Date:

March 13, 2003

Filing Date:

January 11, 2002

Export Citation:

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Assignee:

KONINKL PHILIPS ELECTRONICS NV (NL)

International Classes:

C09K9/02; G02B1/10; G02C7/10; G02B5/23; G02F1/1335; G03C1/73; H01J29/89; G02F1/01; (IPC1-7): G02B5/23; H01J29/89

Domestic Patent References:

WO1998030923A1	1998-07-16
WO1997034192A1	1997-09-18
WO2000034410A1	2000-06-15
WO1996034735A1	1996-11-07

Foreign References:

US6068797A	2000-05-30
US4261656A	1981-04-14
DE4212831A1	1993-10-21

Other References:

PATENT ABSTRACTS OF JAPAN vol. 1995, no. 01 28 February 1995 (1995-02-28)

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