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Patent Searching and Data


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.

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:
G02C7/10; C09K9/02; G02B1/10; G02B5/23; G02F1/1335; G03C1/73; H01J29/89; G02F1/01; (IPC1-7): G02B5/23; H01J29/89
Domestic Patent References:
WO1998030923A11998-07-16
WO1997034192A11997-09-18
WO2000034410A12000-06-15
WO1996034735A11996-11-07
Foreign References:
US6068797A2000-05-30
US4261656A1981-04-14
DE4212831A11993-10-21
Other References:
PATENT ABSTRACTS OF JAPAN vol. 1995, no. 01 28 February 1995 (1995-02-28)
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