CH664665GA3 - - Google Patents

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Publication number
CH664665GA3
CH664665GA3 CH248886A CH248886A CH664665GA3 CH 664665G A3 CH664665G A3 CH 664665GA3 CH 248886 A CH248886 A CH 248886A CH 248886 A CH248886 A CH 248886A CH 664665G A3 CH664665G A3 CH 664665GA3
Authority
CH
Switzerland
Prior art keywords
crystal
glass
layer
breakage
hardness
Prior art date
Application number
CH248886A
Other languages
French (fr)
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 filed Critical
Priority to CH248886A priority Critical patent/CH664665GA3/fr
Priority to US07/131,792 priority patent/US4849299A/en
Priority to EP87118593A priority patent/EP0320524B1/en
Publication of CH664665GA3 publication Critical patent/CH664665GA3/fr
Priority to HK64994A priority patent/HK64994A/en

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B39/00—Watch crystals; Fastening or sealing of crystals; Clock glasses
    • C—CHEMISTRY; METALLURGY
    • C30—CRYSTAL GROWTH
    • C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
    • C30B29/00—Single crystals or homogeneous polycrystalline material with defined structure characterised by the material or by their shape
    • C30B29/10—Inorganic compounds or compositions
    • C30B29/16—Oxides
    • C30B29/20—Aluminium oxides
    • C—CHEMISTRY; METALLURGY
    • C30—CRYSTAL GROWTH
    • C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
    • C30B33/00—After-treatment of single crystals or homogeneous polycrystalline material with defined structure

Abstract

Sapphire watch cover glass or crystal. The glass or crystal (18) comprises on a part of its upper face, a superficial layer (28) having an amorphous structure. This layer (28) makes it possible to increase the hardness of the glass or crystal in its exposed parts while reducing the risk of breakage of said glass or crystal.
CH248886A 1986-06-19 1986-06-19 CH664665GA3 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CH248886A CH664665GA3 (en) 1986-06-19 1986-06-19
US07/131,792 US4849299A (en) 1986-06-19 1987-12-11 Watch cover glass and process for the manufacture of such a glass
EP87118593A EP0320524B1 (en) 1986-06-19 1987-12-15 Watch glass and method for manufacturing such a glass
HK64994A HK64994A (en) 1986-06-19 1994-07-07 Watch glass and method for manufacturing such a glass

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH248886A CH664665GA3 (en) 1986-06-19 1986-06-19

Publications (1)

Publication Number Publication Date
CH664665GA3 true CH664665GA3 (en) 1988-03-31

Family

ID=4234931

Family Applications (1)

Application Number Title Priority Date Filing Date
CH248886A CH664665GA3 (en) 1986-06-19 1986-06-19

Country Status (4)

Country Link
US (1) US4849299A (en)
EP (1) EP0320524B1 (en)
CH (1) CH664665GA3 (en)
HK (1) HK64994A (en)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0399072B1 (en) * 1989-05-23 1992-12-09 BOCK & SCHUPP GMBH & CO. KG Piece of jewellery
US6294223B1 (en) * 1997-12-23 2001-09-25 Georgia Tech Research Corp. Method for ion implantation induced embedded particle formation via reduction
CN102066624B (en) * 2008-06-12 2013-03-13 韩国原子力研究院 Method for manufacturing the color controlled sappire
EP2543653B2 (en) * 2011-07-04 2023-01-11 Comadur S.A. Method for manufacturing a matt ceramic
US10052848B2 (en) * 2012-03-06 2018-08-21 Apple Inc. Sapphire laminates
US9221289B2 (en) 2012-07-27 2015-12-29 Apple Inc. Sapphire window
US9232672B2 (en) 2013-01-10 2016-01-05 Apple Inc. Ceramic insert control mechanism
EP2789004A1 (en) * 2013-02-12 2014-10-15 Apple Inc. Multi-step ion implantation
US9678540B2 (en) 2013-09-23 2017-06-13 Apple Inc. Electronic component embedded in ceramic material
US9632537B2 (en) 2013-09-23 2017-04-25 Apple Inc. Electronic component embedded in ceramic material
US9154678B2 (en) 2013-12-11 2015-10-06 Apple Inc. Cover glass arrangement for an electronic device
US9225056B2 (en) 2014-02-12 2015-12-29 Apple Inc. Antenna on sapphire structure
US9787345B2 (en) * 2014-03-31 2017-10-10 Apple Inc. Laser welding of transparent and opaque materials
US10200516B2 (en) 2014-08-28 2019-02-05 Apple Inc. Interlocking ceramic and optical members
US10406634B2 (en) 2015-07-01 2019-09-10 Apple Inc. Enhancing strength in laser cutting of ceramic components
US10280504B2 (en) 2015-09-25 2019-05-07 Apple Inc. Ion-implanted, anti-reflective layer formed within sapphire material
US11419231B1 (en) 2016-09-22 2022-08-16 Apple Inc. Forming glass covers for electronic devices
US11565506B2 (en) 2016-09-23 2023-01-31 Apple Inc. Thermoformed cover glass for an electronic device
US11535551B2 (en) 2016-09-23 2022-12-27 Apple Inc. Thermoformed cover glass for an electronic device
US10800141B2 (en) 2016-09-23 2020-10-13 Apple Inc. Electronic device having a glass component with crack hindering internal stress regions
US11420900B2 (en) 2018-09-26 2022-08-23 Apple Inc. Localized control of bulk material properties
US11680010B2 (en) 2019-07-09 2023-06-20 Apple Inc. Evaluation of transparent components for electronic devices
CN113453458B (en) 2020-03-28 2023-01-31 苹果公司 Glass cover member for electronic device housing
US11460892B2 (en) * 2020-03-28 2022-10-04 Apple Inc. Glass cover member for an electronic device enclosure
US11666273B2 (en) 2020-05-20 2023-06-06 Apple Inc. Electronic device enclosure including a glass ceramic region
WO2022140541A1 (en) 2020-12-23 2022-06-30 Apple Inc. Laser-based cutting of transparent components for an electronic device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2614566B1 (en) * 1976-04-05 1977-07-07 Jenaer Glaswerk Schott & Gen Composite watch glass - for use in watches provided with analog or digital display

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH608326GA3 (en) * 1976-03-24 1979-01-15 Watch glass, method of manufacturing the latter
EP0095009A1 (en) * 1982-05-21 1983-11-30 W. Bloesch Ag Method of producing a solderable piece of glass
JPS5912611A (en) * 1982-07-12 1984-01-23 Mitsubishi Electric Corp Level stabilizing circuit
JPS60141647A (en) * 1983-12-27 1985-07-26 Seiko Instr & Electronics Ltd Decorating method of cover glass

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2614566B1 (en) * 1976-04-05 1977-07-07 Jenaer Glaswerk Schott & Gen Composite watch glass - for use in watches provided with analog or digital display

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
CHEMICAL ABSTRACTS, vol. 102, 1985, page 277, résumé no. 83243e, Columbus, Ohio, US; T. HIOKI et al.: "Strengthening of alumina by ion implantation", & J. MATER. SCI. LETT. 1984, 3(12), 1099-101 *
CHEMICAL ABSTRACTS, vol. 102, 1985, page 817, résumé no. 37099q, Columbus, Ohio, US; P.J. BURNETT et al.: "Changing the surface mechanical properties of silicon and sapphire (alpha-Al2O3) by ion implantation" *
J. APPL. PHYS., vol. 54, no. 2, février 1983, pages 683-685; "Ion implantation and thermal annealing of alpha-AI203 single crystals" *

Also Published As

Publication number Publication date
HK64994A (en) 1994-07-15
EP0320524B1 (en) 1991-04-10
EP0320524A1 (en) 1989-06-21
US4849299A (en) 1989-07-18

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