CA2296339A1 - Improved anti-reflective composite - Google Patents

Improved anti-reflective composite Download PDF

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Publication number
CA2296339A1
CA2296339A1 CA002296339A CA2296339A CA2296339A1 CA 2296339 A1 CA2296339 A1 CA 2296339A1 CA 002296339 A CA002296339 A CA 002296339A CA 2296339 A CA2296339 A CA 2296339A CA 2296339 A1 CA2296339 A1 CA 2296339A1
Authority
CA
Canada
Prior art keywords
ang
oxide layer
composite
transparent
transparent oxide
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.)
Granted
Application number
CA002296339A
Other languages
French (fr)
Other versions
CA2296339C (en
Inventor
Mohtashim Saif
Hassan Memarian
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.)
CPFilms Inc
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2296339A1 publication Critical patent/CA2296339A1/en
Application granted granted Critical
Publication of CA2296339C publication Critical patent/CA2296339C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
    • G02B1/11—Anti-reflection coatings
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
    • G02B1/11—Anti-reflection coatings
    • G02B1/113—Anti-reflection coatings using inorganic layer materials only
    • G02B1/115—Multilayers
    • G02B1/116—Multilayers including electrically conducting layers

Abstract

An anti-reflective composite is provided having very high visible light transmission and negligible visible reflectance over 400 nm-800 nm wavelengths. The composite of the invention includes (a) a light transmissive substrate; (b) a hard coat deposited onto the substrate; (c) a thin carbon layer having an average thickness between about 2.ANG. and about 100.ANG.; and (d) a plurality of transparent oxide layer pairs deposited onto the thin carbon layer, each transparent oxide layer pair comprising (i) a first transparent oxide having a refractive index between about 1.65 and about 2.65 and an average thickness between about 100.ANG. and about 3200° and (ii) a second transparent oxide layer having a refractive index between about 1.2 and about 1.85, and an average thickness between about 100.ANG. and about 3200.ANG.. The composite can also include an intermediate oxide layer disposed between the thin carbon layer and the first transparent oxide layer. Such intermediate oxide layer has a refractive index between about 1.5 and about 2.2 and is between 400.ANG. and about 1000.ANG. in thickness. In another preferred embodiment, the composite further comprises an outermost transparent low surface energy layer having a surface energy of less than about 40 dynes/cm.
In another preferred embodiment, the transparent layers are deposited by vacuum or non-vacuum processes or by a combination of both processes.
CA002296339A 1997-07-24 1998-06-18 Improved anti-reflective composite Expired - Lifetime CA2296339C (en)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
US5382597P 1997-07-24 1997-07-24
US60/053,825 1997-07-24
US5389197P 1997-07-28 1997-07-28
US60/053,891 1997-07-28
US09/085,844 US6266193B1 (en) 1997-07-24 1998-05-28 Anti-reflective composite
US09/085,844 1998-05-28
PCT/US1998/012707 WO1999005546A1 (en) 1997-07-24 1998-06-18 Improved anti-reflective composite

Publications (2)

Publication Number Publication Date
CA2296339A1 true CA2296339A1 (en) 1999-02-04
CA2296339C CA2296339C (en) 2002-11-19

Family

ID=27368501

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002296339A Expired - Lifetime CA2296339C (en) 1997-07-24 1998-06-18 Improved anti-reflective composite

Country Status (8)

Country Link
US (1) US6266193B1 (en)
EP (1) EP0998687A1 (en)
JP (1) JP3464785B2 (en)
KR (1) KR100391167B1 (en)
CN (1) CN1271420A (en)
AU (1) AU8258798A (en)
CA (1) CA2296339C (en)
WO (1) WO1999005546A1 (en)

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Also Published As

Publication number Publication date
KR20010022046A (en) 2001-03-15
JP2001511536A (en) 2001-08-14
AU8258798A (en) 1999-02-16
KR100391167B1 (en) 2003-07-12
US6266193B1 (en) 2001-07-24
JP3464785B2 (en) 2003-11-10
EP0998687A1 (en) 2000-05-10
CN1271420A (en) 2000-10-25
CA2296339C (en) 2002-11-19
WO1999005546A1 (en) 1999-02-04

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Effective date: 20180618

MKEX Expiry

Effective date: 20180618