GB1224846A - Horological time display - Google Patents

Horological time display

Info

Publication number
GB1224846A
GB1224846A GB38560/69A GB3856069A GB1224846A GB 1224846 A GB1224846 A GB 1224846A GB 38560/69 A GB38560/69 A GB 38560/69A GB 3856069 A GB3856069 A GB 3856069A GB 1224846 A GB1224846 A GB 1224846A
Authority
GB
United Kingdom
Prior art keywords
indication
crystal
electric
sixty
lines
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.)
Expired
Application number
GB38560/69A
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.)
Timex Group USA Inc
Original Assignee
Timex Corp
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 Timex Corp filed Critical Timex Corp
Publication of GB1224846A publication Critical patent/GB1224846A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/03—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on ceramics or electro-optical crystals, e.g. exhibiting Pockels effect or Kerr effect
    • G02F1/05—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on ceramics or electro-optical crystals, e.g. exhibiting Pockels effect or Kerr effect with ferro-electric properties
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00—Liquid crystal materials
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G9/00—Visual time or date indication means
    • G04G9/02—Visual time or date indication means by selecting desired characters out of a number of characters or by selecting indicating elements the position of which represent the time, e.g. by using multiplexing techniques
    • G04G9/06—Visual time or date indication means by selecting desired characters out of a number of characters or by selecting indicating elements the position of which represent the time, e.g. by using multiplexing techniques using light valves, e.g. liquid crystals
    • G04G9/062—Visual time or date indication means by selecting desired characters out of a number of characters or by selecting indicating elements the position of which represent the time, e.g. by using multiplexing techniques using light valves, e.g. liquid crystals using multiplexing techniques
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/03—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on ceramics or electro-optical crystals, e.g. exhibiting Pockels effect or Kerr effect
    • G02F1/055—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on ceramics or electro-optical crystals, e.g. exhibiting Pockels effect or Kerr effect the active material being a ceramic

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Electric Clocks (AREA)

Abstract

1,224,846. Electric timepieces. TIMEX CORP. July 31, 1969 [July 31, 1968; June 12, 1969], No.38560/69. Heading G3T. A timepiece comprises a case 10, a time base 17, an electronic circuit 16, a dial plate 13, a crystal 12 and a time display including an electrooptical material in the form of a liquid crystal or a ferro-electric ceramic. A battery 14 is connected to the time base 17 which is preferably a piezo-electric crystal, the oscillation frequency of which is stepped down by fifteen binary divider circuits, three of which 18-20 are shown, to provide an output of one pulse per second. The dial plate, which is electrically conductive, is connected to a terminal of the battery and sixty radial lines 24 of conductive, transparent material such as tin oxide are printed on the inner surface of the crystal 12. A liquid crystal such as 6-methoxy-2-napthoic acid which is normally clear but which scatters light in the presence of an electric field fills the space between the crystal and the dial plate. Voltages applied at successive second intervals to the lines 24 therefore provide a seconds indication for the timpiece. A second series of sixty conductive lines each in the form of the segments separated by a non- conducting gap provide a minute hand indication 31 when voltages are applied to both segments and an hour hand indication 32 when a voltage is applied to only one segment. Instead of changing from being a clear to a light scattering material the liquid crystal may change colour. In a modification the conductive lines are replaced by three rings each of which is formed by sixty segments of transparent conductive material. A watch is also described in which a series of sixty radial lines provide the seconds and minutes indication whilst a series of twenty four shorter radial lines provide half-hourly indications. A watch using a ferro-electric material such as a solid solution of lead zirconate, lead titanate and bismuth oxide which is pressed and heated is described. Regions of the material become transparent in the presence of an electric field to provide the time indication. A logic circuit and the inter-connections between groups of the radial lines to ensure the correct sequential operation of the time indication are described.
GB38560/69A 1968-07-31 1969-07-31 Horological time display Expired GB1224846A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US74900768A 1968-07-31 1968-07-31
US83423769A 1969-06-12 1969-06-12

Publications (1)

Publication Number Publication Date
GB1224846A true GB1224846A (en) 1971-03-10

Family

ID=27115037

Family Applications (1)

Application Number Title Priority Date Filing Date
GB38560/69A Expired GB1224846A (en) 1968-07-31 1969-07-31 Horological time display

Country Status (6)

Country Link
US (1) US3540209A (en)
CA (1) CA980135A (en)
CH (1) CH1169969A4 (en)
DE (1) DE1937868A1 (en)
FR (1) FR2016838B1 (en)
GB (1) GB1224846A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2204429A (en) * 1987-04-24 1988-11-09 Salim Emile Kahil Clock or watch

Families Citing this family (52)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2600487A1 (en) * 1975-02-13 1976-08-26 Timex Corp ELECTRONIC CLOCK
GB1285012A (en) * 1970-07-30 1972-08-09 Seiko Instr & Electronics Digital electronic timepiece
US3839857A (en) * 1971-06-03 1974-10-08 American Cyanamid Co Electrochromic information displays
GB1377620A (en) * 1971-01-12 1974-12-18 American Cyanamid Co Electronic timepiece
JPS4721664U (en) * 1971-03-11 1972-11-10
JPS5241673B1 (en) * 1971-06-09 1977-10-19
US3721084A (en) * 1971-08-03 1973-03-20 Hamilton Watch Co Solid state watch incorporating large-scale integrated circuits
JPS4844093A (en) * 1971-10-08 1973-06-25
US3796037A (en) * 1971-10-28 1974-03-12 K Fujita Display method for solid state electronic timepiece
US3754152A (en) * 1971-11-03 1973-08-21 Bulova Watch Co Inc Incrementally adjustable capacitor unit for tuning a crystal-controlled oscillator
US3748845A (en) * 1971-12-02 1973-07-31 Bulova Watch Co Inc Electronic system module for crystal-controlled watch
US3772874A (en) * 1971-12-09 1973-11-20 Princeton Materials Science Display apparatus and chronometer utilizing optically variable liquid
GB1407299A (en) * 1971-12-27 1975-09-24 Suwa Seikosha Kk Display device
FR2176557B1 (en) * 1972-03-23 1977-08-19 Radiotechnique Compelec
DE2232632C3 (en) * 1972-07-03 1981-09-17 Metall-Invent S.A., Zug Display device
US3897996A (en) 1972-09-30 1975-08-05 Dainippon Printing Co Ltd Electro-optic display device
DE2366514C3 (en) * 1972-09-30 1985-10-10 Dai Nippon Printing Co., Ltd., Tokio/Tokyo Electro-optical display device
US3982239A (en) * 1973-02-07 1976-09-21 North Hills Electronics, Inc. Saturation drive arrangements for optically bistable displays
DE2410527C3 (en) * 1973-03-08 1983-11-03 Casio Computer Co., Ltd., Tokyo Electronic time display device
US3823549A (en) * 1973-03-08 1974-07-16 Transparent Conductors Inc Electronically actuated liquid crystal watchface with conventional time format
JPS506369A (en) * 1973-05-16 1975-01-23
GB1472260A (en) * 1973-10-29 1977-05-04 Murrell N Electro optical display system in a time-piece
US4079369A (en) * 1973-12-19 1978-03-14 Japan Suncrux Co., Ltd. Liquid crystal display device
JPS5098373A (en) * 1973-12-25 1975-08-05
US3955354A (en) * 1974-02-11 1976-05-11 Jack S. Kilby Display for electronic clocks and watches
US3844105A (en) * 1974-03-06 1974-10-29 Casio Computer Co Ltd Time indication apparatus
US3932860A (en) * 1974-04-25 1976-01-13 Timex Corporation Electro-optical display with circuitry for applying predetermined potentials to all display segments to effect activation of a selected segment only
NL7405724A (en) * 1974-04-29 1975-10-31 Philips Nv DISPLAY DEVICE FOR A COUNTER SUCH AS A CLOCK OR WATCH.
US4026103A (en) * 1974-12-02 1977-05-31 Citizen Watch Co., Ltd. Electronic timepiece with digital display means
US4385842A (en) * 1975-03-10 1983-05-31 Timex Corporation Electronic timepiece for indicating digital subdivisions of time in a substantially conventional format
US4034550A (en) * 1975-04-08 1977-07-12 Kabushiki Kaisha Suwa Seikosha Electronic wristwatch digital display
US4007583A (en) * 1975-05-22 1977-02-15 Rca Corporation Electronic timepiece
DE2621538C3 (en) * 1975-05-28 1985-06-20 Fujitsu Ltd., Kawasaki, Kanagawa Gas discharge indicator
DE2551542A1 (en) * 1975-11-17 1977-05-26 Joachim Reich ELECTRONIC CLOCK
DE2551541A1 (en) * 1975-11-17 1977-05-26 Joachim Reich ELECTRONIC CLOCK
JPS5280870A (en) * 1975-12-27 1977-07-06 Canon Inc Electronic watch
US4077032A (en) * 1976-01-07 1978-02-28 Volkman S Alan Electronic display apparatus
US4041692A (en) * 1976-01-08 1977-08-16 Amelect Incorporated Electronic clock having time indicating light display
US4106281A (en) * 1976-06-28 1978-08-15 Freeman Alfred B Time displays for electronic time keeping devices
US4213294A (en) * 1977-04-12 1980-07-22 Freeman Alfred B Analog displays for electronic timepieces
GB1599667A (en) * 1977-05-12 1981-10-07 Murrell N J Electrooptical analogue display with reduced connections
JPS5347870U (en) * 1977-09-01 1978-04-22
JPS55114986A (en) * 1979-02-27 1980-09-04 Seikosha Co Ltd Needle display unit
EP0018070B1 (en) * 1979-03-13 1983-01-05 National Research Development Corporation Analogue displays
JPS55170693U (en) * 1979-05-28 1980-12-08
JPS58109881A (en) * 1981-12-24 1983-06-30 Mitsubishi Electric Corp Time displaying device
US4636786A (en) * 1982-12-20 1987-01-13 Motorola, Inc. Electrooptic ceramic display and method for making same
US4801932A (en) * 1985-06-04 1989-01-31 Matsushita Electric Industrial Co., Ltd. Display apparatus
US5696740A (en) * 1996-06-12 1997-12-09 Inabinet; Lawrence E. Timepiece for converting between military and civilian time
US20150172776A1 (en) 2012-01-18 2015-06-18 Thomson Licensing Multi-mode ring clock
US11035818B2 (en) * 2014-08-15 2021-06-15 Roche Diabetes Care, Inc. Blood glucose meter with low cost user interface having programmed graphic indicators
USD972953S1 (en) 2020-07-10 2022-12-20 Nicholas M. Rylander Clockface

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3440620A (en) * 1966-01-10 1969-04-22 Rca Corp Electro-optical memory
US3485033A (en) * 1968-03-19 1969-12-23 Corning Glass Works Electronic timepiece having light beam adjustment means

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2204429A (en) * 1987-04-24 1988-11-09 Salim Emile Kahil Clock or watch
GB2204429B (en) * 1987-04-24 1991-09-04 Salim Emile Kahil Timepiece.

Also Published As

Publication number Publication date
CA980135A (en) 1975-12-23
US3540209A (en) 1970-11-17
FR2016838A1 (en) 1970-05-15
DE1937868A1 (en) 1970-02-05
FR2016838B1 (en) 1973-03-16
CH1169969A4 (en) 1971-07-30

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