JPS5520220A - Cover glass for watch - Google Patents

Cover glass for watch

Info

Publication number
JPS5520220A
JPS5520220A JP9131978A JP9131978A JPS5520220A JP S5520220 A JPS5520220 A JP S5520220A JP 9131978 A JP9131978 A JP 9131978A JP 9131978 A JP9131978 A JP 9131978A JP S5520220 A JPS5520220 A JP S5520220A
Authority
JP
Japan
Prior art keywords
glass
film
thin film
soft metal
coating film
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.)
Pending
Application number
JP9131978A
Other languages
Japanese (ja)
Inventor
Kisuke Watanabe
Masaru Ichikawa
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.)
Citizen Watch Co Ltd
Original Assignee
Citizen Watch Co Ltd
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 Citizen Watch Co Ltd filed Critical Citizen Watch Co Ltd
Priority to JP9131978A priority Critical patent/JPS5520220A/en
Publication of JPS5520220A publication Critical patent/JPS5520220A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL 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
    • C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
    • C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
    • C03C17/36—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Surface Treatment Of Glass (AREA)

Abstract

PURPOSE: To provide the title cover glass with a nonreflecting effect by forming a soft metal thin film of a specified thickness and a coating film on the surface of inorg. glass to prevent deterioration in strength of the glass.
CONSTITUTION: Below 100 Å thick, thin film 2 of soft metal selected from Au, Ag and In is formed by vacuum deposition on the surface of inorg. glass 1 strengthened by forming a compressive stress layer. On the film 2 coating film 3 of metal, oxide, nitride, fluoride or the like is formed by vacuum deposition to obtain a laminate of glass 1-soft metal thin film 2-coating film 1. Thus, internal stress formed at the interface between glass 1 and film 3 is absorbed in thin film 2 and allowed to disappear.
COPYRIGHT: (C)1980,JPO&Japio
JP9131978A 1978-07-26 1978-07-26 Cover glass for watch Pending JPS5520220A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9131978A JPS5520220A (en) 1978-07-26 1978-07-26 Cover glass for watch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9131978A JPS5520220A (en) 1978-07-26 1978-07-26 Cover glass for watch

Publications (1)

Publication Number Publication Date
JPS5520220A true JPS5520220A (en) 1980-02-13

Family

ID=14023132

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9131978A Pending JPS5520220A (en) 1978-07-26 1978-07-26 Cover glass for watch

Country Status (1)

Country Link
JP (1) JPS5520220A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55134378A (en) * 1979-04-09 1980-10-20 Kawaguchiko Seimitsu Kk Cover glass for watch
JPS5742555A (en) * 1980-08-29 1982-03-10 Kawaguchiko Seimitsu Kk Cover glass for watch
JP2015532258A (en) * 2012-10-12 2015-11-09 コーニング インコーポレイテッド Laminated articles with moderate adhesion and residual strength
US10351469B2 (en) 2012-10-12 2019-07-16 Corning Incorporated Glass articles having films with moderate adhesion and retained strength

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55134378A (en) * 1979-04-09 1980-10-20 Kawaguchiko Seimitsu Kk Cover glass for watch
JPS5742555A (en) * 1980-08-29 1982-03-10 Kawaguchiko Seimitsu Kk Cover glass for watch
JP2015532258A (en) * 2012-10-12 2015-11-09 コーニング インコーポレイテッド Laminated articles with moderate adhesion and residual strength
US10351469B2 (en) 2012-10-12 2019-07-16 Corning Incorporated Glass articles having films with moderate adhesion and retained strength

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