EP1647867A1 - Vergrösserungsvorrichtung für Uhren - Google Patents

Vergrösserungsvorrichtung für Uhren Download PDF

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Publication number
EP1647867A1
EP1647867A1 EP05017846A EP05017846A EP1647867A1 EP 1647867 A1 EP1647867 A1 EP 1647867A1 EP 05017846 A EP05017846 A EP 05017846A EP 05017846 A EP05017846 A EP 05017846A EP 1647867 A1 EP1647867 A1 EP 1647867A1
Authority
EP
European Patent Office
Prior art keywords
lens
dial
characters
magnifying
ice
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
EP05017846A
Other languages
English (en)
French (fr)
Inventor
Yvan Ferri
Pascal Winkler
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.)
Swatch Group Management Services AG
Original Assignee
Swatch Group Management Services AG
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 Swatch Group Management Services AG filed Critical Swatch Group Management Services AG
Publication of EP1647867A1 publication Critical patent/EP1647867A1/de
Ceased legal-status Critical Current

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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
    • G04B19/00—Indicating the time by visual means
    • G04B19/06—Dials
    • 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
    • G04B19/00—Indicating the time by visual means
    • G04B19/06—Dials
    • G04B19/10—Ornamental shape of the graduations or the surface of the dial; Attachment of the graduations to the dial
    • 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
    • G04B39/008—Watch crystals; Fastening or sealing of crystals; Clock glasses with means for magnified reading
    • 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
    • G04B47/00—Time-pieces combined with other articles which do not interfere with the running or the time-keeping of the time-piece

Definitions

  • the present invention relates to a magnification device for a timepiece which makes it possible to compensate in a simple manner the distortions of the information to be read on part of the dial through a magnifying lens.
  • the information generally appears as alphanumeric characters on an LCD display, or in a window cut in the dial, to give additional information of the current time, such as the date, the month or the day of the week, or even non-hourly information such as the ON / OFF status of a function.
  • this information is carried by discs or rings driven by the watch movement and are constituted by successions of alphanumeric signs or pictograms of small dimensions, with the exception, of course, of so-called "big calendar” devices whose the disadvantage is to use a more bulky mechanism, more complicated and therefore more expensive.
  • patent JP 62014083 can be cited in which a convex lens is provided in the dial at an LCD display, said dial also comprising an analogue display by means of hands.
  • the magnifying device is constituted by a magnifying ring formed in the outer portion of the ice.
  • the magnifying device may also be provided in the inner face of the glass by adding a lens in a housing provided for this purpose, as described in patent EP 0 814 388, or by machining said lens in the inner face of the lens. ice, as described for example in US Patent 6,406,769.
  • the object of the present invention is to overcome the drawbacks of the aforementioned prior art by providing an arrangement between the magnification means and the information to be read which eliminates, or at least greatly reduces, the distortions, by giving back, as it were, to the information read the appearance they should have without a magnifying device.
  • the invention relates to a device for enlarging alphanumeric characters or pictrograms located at the dial of a timepiece by means of a single magnifying lens.
  • the device is characterized in that the character or pictrogram writing is distorted in a direction opposite to the distortion caused by the lens, so that the characters can be read without deformation. From the geometrical and physical characteristics of a lens it is possible to foresee what will be the type of distortion, for example in cushion or barrel for a circular lens, and to modify accordingly the writing of the characters, which would appear then deformed if one did not read them through the lens.
  • the lens can be positioned at the level of the dial, immediately above the characters, without disturbing the rotation of the needle. It can also be positioned at the inner face or the outer face of the ice.
  • the alphanumeric characters to appear under the lens can be formed by means of a digital liquid crystal display (LCD), or even more simply, be written on a date disc, driven by the movement of watchmaker next to a counter.
  • the information displayed in these windows may be time-related or time-independent, such as the ON / OFF status of a function built into the timepiece.
  • FIGS. 1 and 2 show, by way of example, a wristwatch comprising a magnification device according to the invention at the level of its dial 10.
  • the dial 10 is placed in a circular case comprising a middle part 2 closed at its part upper by an ice 1 maintained between a flange 3 and a bezel 4, and at its bottom by a bottom 5 defining a housing 6.
  • the housing 6 is intended to receive a power source 7 for supplying the control means 8 of the display.
  • the control means 8 are constituted by a time-keeping circuit designed to control a stepping motor 9 to drive needles 11a, 11b for reading the current time and a date disc 12, located under the dial 10, on which are inscribed characters 14 scrolling next to a window 16 cut in the dial 10.
  • the window 16 is surmounted by a magnifying lens which cooperates with the writing of the characters 14, as explained below by an embodiment of the following figures.
  • a lens induces a pincushion deformation whose frame is shown in FIG. 4A.
  • Figure 6 shows the percentage of distortion along Y corresponding to the radial distance of a point-object from the center of the lens. The scale is 1/10 of the distance from the farthest point-object.
  • the number 24 is barrel deformed, as shown in FIG. 7A, from the "inverse" distortion percentages deductible from the diagram of FIG. 6, to appear without deformation, as represented in FIG. 7.
  • Figures 8A and 8B give another example with the letters FEB, to designate the month of February, deformed in barrel ( Figure 8A) for a lens causing pincushion deformation.
  • the other example represented in FIGS. 9A and 9B concerns the letters MON to designate a day of the week, as much information as can be delivered by the date wheel.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
  • Lenses (AREA)
  • Electromechanical Clocks (AREA)
EP05017846A 2004-10-11 2005-08-17 Vergrösserungsvorrichtung für Uhren Ceased EP1647867A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH16732004 2004-10-11

Publications (1)

Publication Number Publication Date
EP1647867A1 true EP1647867A1 (de) 2006-04-19

Family

ID=35788460

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05017846A Ceased EP1647867A1 (de) 2004-10-11 2005-08-17 Vergrösserungsvorrichtung für Uhren

Country Status (6)

Country Link
US (1) US7274520B2 (de)
EP (1) EP1647867A1 (de)
JP (1) JP2006113054A (de)
KR (1) KR20060052138A (de)
CN (1) CN1760773A (de)
TW (1) TW200627100A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2575775B1 (de) 2010-06-01 2018-04-04 Baxter International Inc. Verfahren zur herstellung von trockenen und stabilen hämostatischen zusammensetzungen

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3032357B1 (de) * 2014-12-09 2017-05-03 The Swatch Group Research and Development Ltd. Anzeigevorrichtung für ein tragbares Instrument, wie beispielsweise eine Uhr
EP3062172B1 (de) * 2015-02-24 2017-11-15 The Swatch Group Research and Development Ltd. Armbanduhr mit lupe
DE102017125101B4 (de) 2017-10-26 2021-03-25 Mekra Lang Gmbh & Co. Kg Haltevorrichtung für ein Kraftfahrzeug und Kamera-Monitor-System
EP3575888B1 (de) * 2018-05-30 2023-04-12 Rolex Sa Uhr umfassend eine asphärische linse
US11958419B2 (en) 2022-02-24 2024-04-16 Stoneridge, Inc. Collapsible vehicle camera arm assembly

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4451117A (en) * 1983-11-04 1984-05-29 Goode Robert C Digital watch magnifying element
JPS61205889A (ja) 1985-03-08 1986-09-12 Citizen Watch Co Ltd レンズ付カバ−ガラスを備えた電子機器
JPS6214083A (ja) * 1985-07-12 1987-01-22 Citizen Watch Co Ltd レンズ付文字板を備えた電子機器
JPS6214083B2 (de) 1979-04-24 1987-03-31 Tokyo Shibaura Electric Co
EP0814388A1 (de) 1996-06-19 1997-12-29 Hans Stettler AG Uhrglas
US6406769B1 (en) 1998-04-02 2002-06-18 Comadur S.A. Watch crystal including a lens and manufacturing method for such a lens
US6456569B1 (en) * 1999-04-22 2002-09-24 Eta Sa Fabriques D'ebauches Mutual mounting of a crystal, a dial and a casing ring for a timepiece
US20030189760A1 (en) 2002-04-04 2003-10-09 Antonin Miks Optical system for distorted imaging of an object

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS534135Y2 (de) * 1973-05-21 1978-02-01
US4462697A (en) * 1982-03-04 1984-07-31 Timex Corporation Integral plastic strap and bezel for a wristwatch
US5440428A (en) * 1993-09-30 1995-08-08 Hughes Aircraft Company Automotive instrument 3-D virtual image display
US6642977B2 (en) * 2001-06-20 2003-11-04 3M Innovative Properties Company Liquid crystal displays with repositionable front polarizers

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6214083B2 (de) 1979-04-24 1987-03-31 Tokyo Shibaura Electric Co
US4451117A (en) * 1983-11-04 1984-05-29 Goode Robert C Digital watch magnifying element
JPS61205889A (ja) 1985-03-08 1986-09-12 Citizen Watch Co Ltd レンズ付カバ−ガラスを備えた電子機器
JPS6214083A (ja) * 1985-07-12 1987-01-22 Citizen Watch Co Ltd レンズ付文字板を備えた電子機器
EP0814388A1 (de) 1996-06-19 1997-12-29 Hans Stettler AG Uhrglas
US6406769B1 (en) 1998-04-02 2002-06-18 Comadur S.A. Watch crystal including a lens and manufacturing method for such a lens
US6456569B1 (en) * 1999-04-22 2002-09-24 Eta Sa Fabriques D'ebauches Mutual mounting of a crystal, a dial and a casing ring for a timepiece
US20030189760A1 (en) 2002-04-04 2003-10-09 Antonin Miks Optical system for distorted imaging of an object

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 011, no. 186 (P - 586) 16 June 1987 (1987-06-16) *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2575775B1 (de) 2010-06-01 2018-04-04 Baxter International Inc. Verfahren zur herstellung von trockenen und stabilen hämostatischen zusammensetzungen

Also Published As

Publication number Publication date
US20060077570A1 (en) 2006-04-13
CN1760773A (zh) 2006-04-19
JP2006113054A (ja) 2006-04-27
TW200627100A (en) 2006-08-01
KR20060052138A (ko) 2006-05-19
US7274520B2 (en) 2007-09-25

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