CH636241B - ELECTRONIC WATCH WITH ANALOGUE DISPLAY AND DISPLAY BY ELECTRO-OPTICAL DEVICE. - Google Patents

ELECTRONIC WATCH WITH ANALOGUE DISPLAY AND DISPLAY BY ELECTRO-OPTICAL DEVICE.

Info

Publication number
CH636241B
CH636241B CH918580A CH918580A CH636241B CH 636241 B CH636241 B CH 636241B CH 918580 A CH918580 A CH 918580A CH 918580 A CH918580 A CH 918580A CH 636241 B CH636241 B CH 636241B
Authority
CH
Switzerland
Prior art keywords
display
electro
cell
discs
optical device
Prior art date
Application number
CH918580A
Other languages
French (fr)
Other versions
CH636241GA3 (en
Inventor
Claude Laesser
Original Assignee
Ebauches Sa
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 of CH636241B publication Critical patent/CH636241B/en
Application filed by Ebauches Sa filed Critical Ebauches Sa
Priority to CH918580A priority Critical patent/CH636241B/en
Priority to GB8137350A priority patent/GB2089535B/en
Priority to JP56198714A priority patent/JPS57122376A/en
Publication of CH636241GA3 publication Critical patent/CH636241GA3/fr

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C17/00—Indicating the time optically by electric means
    • 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
    • G04B45/00—Time pieces of which the indicating means or cases provoke special effects, e.g. aesthetic effects
    • G04B45/04—Time pieces with invisible drive, e.g. with hands attached to a rotating glass disc
    • G04B45/046—Time pieces with invisible drive, e.g. with hands attached to a rotating glass disc the driving mechanism of the hands being invisible because of special shielding
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C17/00—Indicating the time optically by electric means
    • G04C17/005—Indicating the time optically by electric means by discs
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C17/00—Indicating the time optically by electric means
    • G04C17/0091—Combined electro-optical and electro-mechanical displays
    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G9/00—Visual time or date indication means
    • G04G9/0082—Visual time or date indication means by building-up characters using a combination of indicating elements and by selecting desired characters out of a number of characters or by selecting indicating elements the positions of which represents the time, i.e. combinations of G04G9/02 and G04G9/08

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
  • Electromechanical Clocks (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

To simplify the construction of a watch comprising an analog display and an electro-optical display cell 12, the analog display is provided by two transparent discs 8a and 10a carrying minute and hour markers 8 and 10 and located in front of the cell 12. The discs are driven at their peripheries by means of a stepping motor 40. This construction permits the use of a display cell 12 of large size, which does not have hand spindles passing through it. The display cell 12 is visible through apertures in a dial 14. The watch is powered by a cell 64. There may be two separate motors for the minutes and hours discs 8a, 10a. The hand discs may show local time when the electro-optical display shows the time at a different location (Rome in Fig. 1). <IMAGE>
CH918580A 1980-12-12 1980-12-12 ELECTRONIC WATCH WITH ANALOGUE DISPLAY AND DISPLAY BY ELECTRO-OPTICAL DEVICE. CH636241B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CH918580A CH636241B (en) 1980-12-12 1980-12-12 ELECTRONIC WATCH WITH ANALOGUE DISPLAY AND DISPLAY BY ELECTRO-OPTICAL DEVICE.
GB8137350A GB2089535B (en) 1980-12-12 1981-12-10 An electronic watch having an analog display and an electro-optical display device
JP56198714A JPS57122376A (en) 1980-12-12 1981-12-11 Electronic watch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH918580A CH636241B (en) 1980-12-12 1980-12-12 ELECTRONIC WATCH WITH ANALOGUE DISPLAY AND DISPLAY BY ELECTRO-OPTICAL DEVICE.

Publications (2)

Publication Number Publication Date
CH636241B true CH636241B (en)
CH636241GA3 CH636241GA3 (en) 1983-05-31

Family

ID=4349263

Family Applications (1)

Application Number Title Priority Date Filing Date
CH918580A CH636241B (en) 1980-12-12 1980-12-12 ELECTRONIC WATCH WITH ANALOGUE DISPLAY AND DISPLAY BY ELECTRO-OPTICAL DEVICE.

Country Status (3)

Country Link
JP (1) JPS57122376A (en)
CH (1) CH636241B (en)
GB (1) GB2089535B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0532004A (en) * 1991-06-07 1993-02-09 Tokyo Electric Co Ltd Printer for register
GB2322460B (en) * 1997-02-21 1999-01-06 Future Digital Technology Limi Wrist watch

Also Published As

Publication number Publication date
GB2089535B (en) 1983-12-14
JPS57122376A (en) 1982-07-30
CH636241GA3 (en) 1983-05-31
GB2089535A (en) 1982-06-23

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