JPS5788043A - Glass cover for watch - Google Patents

Glass cover for watch

Info

Publication number
JPS5788043A
JPS5788043A JP16024880A JP16024880A JPS5788043A JP S5788043 A JPS5788043 A JP S5788043A JP 16024880 A JP16024880 A JP 16024880A JP 16024880 A JP16024880 A JP 16024880A JP S5788043 A JPS5788043 A JP S5788043A
Authority
JP
Japan
Prior art keywords
watch
fluoride
oxide
coating layer
cover
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
JP16024880A
Other languages
Japanese (ja)
Inventor
Chujo Matsumoto
Sadaaki Kamata
Tatsuhiko Mori
Sadao Takeda
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.)
PUROTEKUTO KOGAKU KK
Original Assignee
PUROTEKUTO KOGAKU KK
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 PUROTEKUTO KOGAKU KK filed Critical PUROTEKUTO KOGAKU KK
Priority to JP16024880A priority Critical patent/JPS5788043A/en
Publication of JPS5788043A publication Critical patent/JPS5788043A/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
    • C03C17/22—Surface treatment of glass, not in the form of fibres or filaments, by coating with other inorganic material
    • C03C17/23—Oxides

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)
  • Coating Of Shaped Articles Made Of Macromolecular Substances (AREA)
  • Surface Treatment Of Glass (AREA)

Abstract

PURPOSE: To cause the interference of light reflected from the surface of glass for a watch and to enhance the transmittance by forming a transparent coating layer of oxide, fluoride or the like of a specified element on the glass surface in a prescribed thickness.
CONSTITUTION: The titled cover is obtd. by forming a transparent coating layer of oxide, sulfide, carbide, nitride or fluoride of an element selected from the II, III and IV group elements, actinoids and lanthanoids, or a mixture thereof in l/2λ, 1/4λ, 3/4λ, λ or 10W1,000Å thickness. This cover has high transmittance and strength, and the dials of the watch can be read easily.
COPYRIGHT: (C)1982,JPO&Japio
JP16024880A 1980-11-13 1980-11-13 Glass cover for watch Pending JPS5788043A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16024880A JPS5788043A (en) 1980-11-13 1980-11-13 Glass cover for watch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16024880A JPS5788043A (en) 1980-11-13 1980-11-13 Glass cover for watch

Publications (1)

Publication Number Publication Date
JPS5788043A true JPS5788043A (en) 1982-06-01

Family

ID=15710894

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16024880A Pending JPS5788043A (en) 1980-11-13 1980-11-13 Glass cover for watch

Country Status (1)

Country Link
JP (1) JPS5788043A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003089548A (en) * 2001-09-17 2003-03-28 Citizen Watch Co Ltd Method for manufacturing windshield for timepiece
JP2005274527A (en) * 2004-03-26 2005-10-06 Cimeo Precision Co Ltd Cover glass for clock

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003089548A (en) * 2001-09-17 2003-03-28 Citizen Watch Co Ltd Method for manufacturing windshield for timepiece
JP2005274527A (en) * 2004-03-26 2005-10-06 Cimeo Precision Co Ltd Cover glass for clock

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