DK0395410T3 - Transparent optisk variabel anordning - Google Patents

Transparent optisk variabel anordning

Info

Publication number
DK0395410T3
DK0395410T3 DK90304531.8T DK90304531T DK0395410T3 DK 0395410 T3 DK0395410 T3 DK 0395410T3 DK 90304531 T DK90304531 T DK 90304531T DK 0395410 T3 DK0395410 T3 DK 0395410T3
Authority
DK
Denmark
Prior art keywords
variable device
transparent optical
optical variable
absorber layers
layer coating
Prior art date
Application number
DK90304531.8T
Other languages
English (en)
Inventor
Roger W Phillips
Paul G Coombs
Original Assignee
Flex Products Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Flex Products Inc filed Critical Flex Products Inc
Application granted granted Critical
Publication of DK0395410T3 publication Critical patent/DK0395410T3/da

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • G02B5/28—Interference filters
    • G02B5/285—Interference filters comprising deposited thin solid films
    • G02B5/286—Interference filters comprising deposited thin solid films having four or fewer layers, e.g. for achieving a colour effect
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S283/00—Printed matter
    • Y10S283/902—Anti-photocopy
DK90304531.8T 1989-04-26 1990-04-26 Transparent optisk variabel anordning DK0395410T3 (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/343,893 US5278590A (en) 1989-04-26 1989-04-26 Transparent optically variable device

Publications (1)

Publication Number Publication Date
DK0395410T3 true DK0395410T3 (da) 1998-03-30

Family

ID=23348127

Family Applications (1)

Application Number Title Priority Date Filing Date
DK90304531.8T DK0395410T3 (da) 1989-04-26 1990-04-26 Transparent optisk variabel anordning

Country Status (10)

Country Link
US (1) US5278590A (da)
EP (1) EP0395410B1 (da)
JP (1) JP2831095B2 (da)
AT (1) ATE156916T1 (da)
CA (1) CA2015301C (da)
DE (1) DE69031240T2 (da)
DK (1) DK0395410T3 (da)
ES (1) ES2104582T3 (da)
GR (1) GR3024543T3 (da)
HK (1) HK1002042A1 (da)

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Also Published As

Publication number Publication date
DE69031240D1 (de) 1997-09-18
US5278590A (en) 1994-01-11
ATE156916T1 (de) 1997-08-15
EP0395410A2 (en) 1990-10-31
CA2015301A1 (en) 1990-10-26
JPH03129303A (ja) 1991-06-03
EP0395410B1 (en) 1997-08-13
DE69031240T2 (de) 1997-12-04
HK1002042A1 (en) 1998-07-24
ES2104582T3 (es) 1997-10-16
JP2831095B2 (ja) 1998-12-02
CA2015301C (en) 1999-09-21
GR3024543T3 (en) 1997-12-31
EP0395410A3 (en) 1991-02-27

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