AU606321B2 - Optical thin film flakes, replicated optical coatings and coatings and inks incorporating same and method - Google Patents

Optical thin film flakes, replicated optical coatings and coatings and inks incorporating same and method Download PDF

Info

Publication number
AU606321B2
AU606321B2 AU66451/86A AU6645186A AU606321B2 AU 606321 B2 AU606321 B2 AU 606321B2 AU 66451/86 A AU66451/86 A AU 66451/86A AU 6645186 A AU6645186 A AU 6645186A AU 606321 B2 AU606321 B2 AU 606321B2
Authority
AU
Australia
Prior art keywords
ink
flakes
optically variable
thin film
web
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
AU66451/86A
Other languages
English (en)
Other versions
AU6645186A (en
Inventor
Gary S. Ash
Thomas Mayer
Roger W. Phillips
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Flex Products Inc
Original Assignee
Optical Coating Laboratory 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25210705&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=AU606321(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Optical Coating Laboratory Inc filed Critical Optical Coating Laboratory Inc
Publication of AU6645186A publication Critical patent/AU6645186A/en
Application granted granted Critical
Publication of AU606321B2 publication Critical patent/AU606321B2/en
Assigned to FLEX PRODUCTS, INC. reassignment FLEX PRODUCTS, INC. Alteration of Name(s) in Register under S187 Assignors: OPTICAL COATING LABORATORY, INC.
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09DCOATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D11/00Inks
    • C09D11/50Sympathetic, colour changing or similar inks
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D5/00Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
    • B05D5/06Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain multicolour or other optical effects
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41MPRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M3/00Printing processes to produce particular kinds of printed work, e.g. patterns
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41MPRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M3/00Printing processes to produce particular kinds of printed work, e.g. patterns
    • B41M3/14Security printing
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C17/00Surface treatment of glass, not in the form of fibres or filaments, by coating
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09CTREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C1/00Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
    • C09C1/0015Pigments exhibiting interference colours, e.g. transparent platelets of appropriate thinness or flaky substrates, e.g. mica, bearing appropriate thin transparent coatings
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09CTREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C1/00Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
    • C09C1/0078Pigments consisting of flaky, non-metallic substrates, characterised by a surface-region containing free metal
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24SSOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S70/00Details of absorbing elements
    • F24S70/20Details of absorbing elements characterised by absorbing coatings; characterised by surface treatment for increasing absorption

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Optical Couplings Of Light Guides (AREA)
  • Physical Deposition Of Substances That Are Components Of Semiconductor Devices (AREA)
  • Pigments, Carbon Blacks, Or Wood Stains (AREA)
  • Polarising Elements (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
  • Printing Methods (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)
  • Manufacturing Of Electric Cables (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)
  • Physical Vapour Deposition (AREA)
  • Glass Compositions (AREA)
  • Laminated Bodies (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Materials For Medical Uses (AREA)
AU66451/86A 1985-12-23 1986-12-12 Optical thin film flakes, replicated optical coatings and coatings and inks incorporating same and method Ceased AU606321B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US81281485A 1985-12-23 1985-12-23
US812814 1985-12-23

Related Child Applications (1)

Application Number Title Priority Date Filing Date
AU76113/91A Division AU637900B2 (en) 1985-12-23 1991-04-29 Improvements relating to optically variable devices

Publications (2)

Publication Number Publication Date
AU6645186A AU6645186A (en) 1987-06-25
AU606321B2 true AU606321B2 (en) 1991-02-07

Family

ID=25210705

Family Applications (2)

Application Number Title Priority Date Filing Date
AU66451/86A Ceased AU606321B2 (en) 1985-12-23 1986-12-12 Optical thin film flakes, replicated optical coatings and coatings and inks incorporating same and method
AU76113/91A Withdrawn - After Issue AU637900B2 (en) 1985-12-23 1991-04-29 Improvements relating to optically variable devices

Family Applications After (1)

Application Number Title Priority Date Filing Date
AU76113/91A Withdrawn - After Issue AU637900B2 (en) 1985-12-23 1991-04-29 Improvements relating to optically variable devices

Country Status (10)

Country Link
EP (1) EP0227423B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPS62260875A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
AT (1) ATE76888T1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
AU (2) AU606321B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CA (1) CA1315448C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE3685566T2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DK (3) DK628586A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
ES (1) ES2031454T3 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GR (1) GR3005337T3 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NZ (1) NZ218573A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (67)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2580145A (en) * 1949-06-06 1951-12-25 Godfrey L White Attachment for controlling weeds in cotton
US5766738A (en) * 1979-12-28 1998-06-16 Flex Products, Inc. Paired optically variable article with paired optically variable structures and ink, paint and foil incorporating the same and method
US5015318A (en) * 1987-08-10 1991-05-14 Alcan International Limited Method of making tamper-evident structures
US4837061A (en) * 1987-08-10 1989-06-06 Alcan International Limited Tamper-evident structures
US5156720A (en) * 1989-02-02 1992-10-20 Alcan International Limited Process for producing released vapor deposited films and product produced thereby
US4994314A (en) * 1989-02-03 1991-02-19 Alcan International Limited Color change devices incorporating thin anodic films
US5055150A (en) * 1989-02-03 1991-10-08 Alcan International Limited Process and apparatus for producing coated polymer sheets having oxygen and moisture barrier properties and coated polymer sheets thus produced
US5062928A (en) * 1990-04-17 1991-11-05 Alcan International Limited Process for producing color change devices incorporating latent indicia and the resulting devices
GB9106128D0 (en) * 1991-03-22 1991-05-08 Amblehurst Ltd Article
ATE167118T1 (de) * 1993-04-05 1998-06-15 De La Rue Giori Sa Druckplatte
TW275109B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1993-08-06 1996-05-01 Commw Scient Ind Res Org
TW265421B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1993-11-23 1995-12-11 Commw Scient Ind Res Org
AU674805B2 (en) * 1993-11-23 1997-01-09 Commonwealth Scientific And Industrial Research Organisation Diffractive indicia for a surface
CA2264279A1 (en) * 1996-08-23 1998-02-26 Nittetsu Mining Co., Ltd. Rheological fluid
DE19635085A1 (de) 1996-08-30 1998-03-05 Eckart Standard Bronzepulver Korrosionsstabile, durch Physical Vapor Deposition hergestellte Aluminiumpigmente und Verfahren zu deren Stabilisierung
ATE528726T1 (de) * 1998-08-06 2011-10-15 Sicpa Holding Sa Anorganische folie zur herstellung von pigmenten
DE19844357C2 (de) * 1998-09-28 2001-04-05 Hilmar Weinert Bandbedampfungsanlage und Verfahren zur Herstellung von planparallelen Plättchen
US6863851B2 (en) 1998-10-23 2005-03-08 Avery Dennison Corporation Process for making angstrom scale and high aspect functional platelets
MXPA01004046A (es) 1998-10-23 2002-07-02 Avery Dennison Corp Proceso para fabricar escamas metalicas.
ES2193936T3 (es) * 1999-01-20 2003-11-16 Eckart Gmbh & Co Kg Procedimiento y dispositivo para la fabricacion de pigmentos colorantes.
DE19907697A1 (de) 1999-02-23 2000-08-24 Giesecke & Devrient Gmbh Wertdokument
US6761959B1 (en) * 1999-07-08 2004-07-13 Flex Products, Inc. Diffractive surfaces with color shifting backgrounds
CN1258448C (zh) * 2000-01-21 2006-06-07 光学涂层实验公司 光学可变防伪图样
DE10004888A1 (de) 2000-02-04 2001-08-09 Eckart Standard Bronzepulver Glanzpigment und Verfahren zu seiner Herstellung
GB0016918D0 (en) 2000-07-10 2000-08-30 Rue De Int Ltd Method of providing an image on a substrate, and an ink for use therein
US20020160194A1 (en) * 2001-04-27 2002-10-31 Flex Products, Inc. Multi-layered magnetic pigments and foils
EP1453987A2 (en) * 2001-11-29 2004-09-08 Avery Dennison Corporation Process for making angstrom scale and high aspect functional platelets
JP2008511704A (ja) 2004-08-23 2008-04-17 チバ スペシャルティ ケミカルズ ホールディング インコーポレーテッド アルミニウムおよびSiOz(z=0.7〜2.0)をベースとするフレーク状顔料を製造する方法
GB0419157D0 (en) 2004-08-27 2004-09-29 Rue De Int Ltd A method of manufacturing a fibrous substrate incorporating an elongate element
EP1669213A1 (en) 2004-12-09 2006-06-14 Sicpa Holding S.A. Security element having a viewing-angle dependent aspect
US7651557B2 (en) 2004-12-17 2010-01-26 Cabot Corporation Inkjet inks comprising multi-layer pigments
US7588817B2 (en) * 2005-03-11 2009-09-15 Jds Uniphase Corporation Engraved optically variable image device
EP1719636A1 (en) 2005-05-04 2006-11-08 Sicpa Holding S.A. Black-to-color shifting security element
GB0525888D0 (en) 2005-12-20 2006-02-01 Rue De Int Ltd Improvements in methods of manufacturing security substrates
EP1854852A1 (en) 2006-05-12 2007-11-14 Sicpa Holding S.A. Coating composition for producing magnetically induced images
US20070281177A1 (en) * 2006-05-31 2007-12-06 Cabot Corporation Colored Reflective Features And Inks And Processes For Making Them
EP1880866A1 (en) 2006-07-19 2008-01-23 Sicpa Holding S.A. Oriented image coating on transparent substrate
RS50827B (sr) 2006-10-17 2010-08-31 Sicpa Holding S.A. Metod i načini za formiranje magnetno indukovanih identifikacionih oznaka u prevlaci koja sadrži magnetne čestice
CN101337477B (zh) * 2007-07-06 2011-01-12 比亚迪股份有限公司 一种工件表面涂装方法
US20100295287A1 (en) 2007-10-26 2010-11-25 Basf Se Security element
ES2639055T3 (es) 2009-07-20 2017-10-25 L'oréal Emulsión que contiene una dispersión de oxicloruro de bismuto
AU2010277718B2 (en) * 2009-07-28 2014-09-11 Sicpa Holding Sa Transfer foil comprising optically variable magnetic pigment, method of making, use of transfer foil, and article or document comprising such
WO2011067807A1 (en) 2009-12-02 2011-06-09 L'oreal Cosmetic composition containing fusiform particles for cosmetic use
DE102009056934A1 (de) 2009-12-04 2011-06-09 Giesecke & Devrient Gmbh Sicherheitselement, Wertdokument mit einem solchen Sicherheitselement sowie Herstellungsverfahren eines Sicherheitselementes
DE102010047250A1 (de) 2009-12-04 2011-06-09 Giesecke & Devrient Gmbh Sicherheitselement, Wertdokument mit einem solchen Sicherheitselement sowie Herstellungsverfahren eines Sicherheitselementes
DE102010006173A1 (de) 2010-01-29 2011-08-04 Giesecke & Devrient GmbH, 81677 Sicherheitselement mit erweitertem Farbkippeffekt und thermochromer Zusatzfunktion
US8974720B2 (en) 2010-07-01 2015-03-10 Toyota Jidosha Kabushiki Kaisha Method for producing ceramic laminate
JP5781880B2 (ja) * 2010-09-29 2015-09-24 トヨタ モーター エンジニアリング アンド マニュファクチャリング ノース アメリカ,インコーポレイティド 層ごとのスプレー法を介したuv反射率を有する構造色
WO2012042570A1 (en) 2010-09-29 2012-04-05 L'oreal A cosmetic method for hiding skin imperfections
US8322636B2 (en) * 2010-12-15 2012-12-04 Toyota Motor Engineering & Manufacturing North America, Inc. Production of multilayered thin film particles
DE102011108242A1 (de) 2011-07-21 2013-01-24 Giesecke & Devrient Gmbh Optisch variables Element, insbesondere Sicherheitselement
EP2573739B1 (en) 2011-09-26 2015-04-22 Sicpa Holding Sa Optically variable entity authenticating device and method
HK1198376A1 (en) 2011-09-26 2015-04-10 Sicpa Holding Sa Optically variable entity authenticating device and method
MX2014011513A (es) 2012-03-27 2014-12-05 Sicpa Holding Sa Hojuela de multiples capas con alto nivel de codificacion.
US9724957B2 (en) 2012-11-09 2017-08-08 Sicpa Holding Sa Irreversibly magnetically induced images or patterns
WO2014203913A1 (en) 2013-06-18 2014-12-24 L'oreal Cosmetic composition
CN105706147B (zh) 2013-10-11 2019-02-22 锡克拜控股有限公司 用于认证标记的手持装置和方法
FR3014017B1 (fr) 2013-12-03 2018-12-07 Hid Global Cid Sas Structure de securite
DE102016004424A1 (de) 2016-04-12 2017-10-12 Giesecke+Devrient Currency Technology Gmbh Laserung einer Beschichtung mit Effektpigmenten
DE102016014205A1 (de) 2016-11-29 2018-05-30 Giesecke+Devrient Currency Technology Gmbh Siebdruck von Effektfarben auf Wertdokumente
EP3431304B1 (en) 2017-07-18 2020-05-20 Agfa-Gevaert Method of providing an ovd on a security document by laser marking
EP3489030B1 (en) 2017-11-27 2020-09-23 Agfa-Gevaert Method of providing a security element on a security document by laser marking
MX2019002665A (es) * 2018-03-14 2019-09-16 Viavi Solutions Inc Metodo sin solvente para fabricar dispositivos de pelicula delgada.
DE102019005456A1 (de) 2019-08-02 2021-02-04 Giesecke+Devrient Currency Technology Gmbh Verfahren zum Herstellen von Effektpigmenten
EP3842253B1 (en) 2019-12-23 2024-03-20 HID Global CID SAS Uv curable and heat sealable ink
DE102021000478A1 (de) 2021-02-01 2022-08-04 Giesecke+Devrient Currency Technology Gmbh Maskenbelichtungsverfahren, transparente, leitfähige Metallisierung und Pigment
DE102022125862A1 (de) 2022-10-06 2024-04-11 Giesecke+Devrient Currency Technology Gmbh Sicherheitselement mit lichtbrechenden Strukturen und Farbwechsel

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3123490A (en) * 1961-05-04 1964-03-03 Nacreous pigment and method for preparing same
US4168986A (en) * 1978-07-03 1979-09-25 Polaroid Corporation Method for preparing lamellar pigments
US4434010A (en) * 1979-12-28 1984-02-28 Optical Coating Laboratory, Inc. Article and method for forming thin film flakes and coatings

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3123489A (en) * 1961-02-06 1964-03-03 Method for preparing nacreous pigments
BE619447A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1961-06-28
US4705356A (en) * 1984-07-13 1987-11-10 Optical Coating Laboratory, Inc. Thin film optical variable article having substantial color shift with angle and method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3123490A (en) * 1961-05-04 1964-03-03 Nacreous pigment and method for preparing same
US4168986A (en) * 1978-07-03 1979-09-25 Polaroid Corporation Method for preparing lamellar pigments
US4434010A (en) * 1979-12-28 1984-02-28 Optical Coating Laboratory, Inc. Article and method for forming thin film flakes and coatings

Also Published As

Publication number Publication date
DK128393D0 (da) 1993-11-12
DE3685566D1 (de) 1992-07-09
EP0227423A2 (en) 1987-07-01
DK628586D0 (da) 1986-12-23
JPS62260875A (ja) 1987-11-13
ATE76888T1 (de) 1992-06-15
AU6645186A (en) 1987-06-25
DK36695A (da) 1995-04-03
DE3685566T2 (de) 1992-12-24
CA1315448C (en) 1993-03-30
NZ218573A (en) 1989-11-28
JPH0322427B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1991-03-26
AU7611391A (en) 1991-08-08
AU637900B2 (en) 1993-06-10
EP0227423B1 (en) 1992-06-03
DK128393A (da) 1993-11-12
EP0227423A3 (en) 1988-12-07
ES2031454T3 (es) 1992-12-16
DK628586A (da) 1987-06-24
GR3005337T3 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1993-05-24

Similar Documents

Publication Publication Date Title
AU606321B2 (en) Optical thin film flakes, replicated optical coatings and coatings and inks incorporating same and method
US5383995A (en) Method of making optical thin flakes and inks incorporating the same
US5059245A (en) Ink incorporating optically variable thin film flakes
US5648165A (en) Hot stamp article for applying optically variable coating to substrates
US5281480A (en) Optically variable multilayer structure on flexible web
US5084351A (en) Optically variable multilayer thin film interference stack on flexible insoluble web
KR100979219B1 (ko) 엠보싱된 금속 플레이크의 제조 방법 및 제품
JP7143384B2 (ja) 物品の製造方法、および基板上に金属外観を生成する方法
CN111132851B (zh) 片状颜料、印刷油墨、防伪元件及生产方法
US7608330B2 (en) High chroma optically variable color-shifting glitter comprising particles having interference structure coating
KR100336736B1 (ko) 광학적가변성이색안료및간섭마이카안료를함유하는코팅조성물
EP1036116B1 (en) Ink composition comprising first and second optically variable pigments
JP2002527563A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
EP3524647A1 (en) Ink layer sequence with colour flop effect without containing interference pigments
CA1329733C (en) Optical thin film flakes, replicated optical coatings and coatings and inks incorporating the same and method
JP2025115970A (ja) 色属性を制御するための光学デバイス
TW202532577A (zh) 用於控制顏色屬性的光學器件

Legal Events

Date Code Title Description
MK14 Patent ceased section 143(a) (annual fees not paid) or expired