EP0663631B1 - Uhr mit Anzeige des vom Mond aus sichtbaren Teiles der Erde - Google Patents

Uhr mit Anzeige des vom Mond aus sichtbaren Teiles der Erde Download PDF

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Publication number
EP0663631B1
EP0663631B1 EP95100105A EP95100105A EP0663631B1 EP 0663631 B1 EP0663631 B1 EP 0663631B1 EP 95100105 A EP95100105 A EP 95100105A EP 95100105 A EP95100105 A EP 95100105A EP 0663631 B1 EP0663631 B1 EP 0663631B1
Authority
EP
European Patent Office
Prior art keywords
earth
timepiece according
rotation
dial
moon
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 - Lifetime
Application number
EP95100105A
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English (en)
French (fr)
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EP0663631A1 (de
Inventor
Kilian Eisenegger
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.)
ETA SA Manufacture Horlogere Suisse
Ebauchesfabrik ETA AG
Original Assignee
Ebauchesfabrik ETA AG
Eta SA Fabriques dEbauches
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 Ebauchesfabrik ETA AG, Eta SA Fabriques dEbauches filed Critical Ebauchesfabrik ETA AG
Publication of EP0663631A1 publication Critical patent/EP0663631A1/de
Application granted granted Critical
Publication of EP0663631B1 publication Critical patent/EP0663631B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G04B19/26—Clocks or watches with indicators for tides, for the phases of the moon, or the like

Definitions

  • the present invention relates to a timepiece capable of indicating which part of the terrestrial globe is visible from the Moon, and in particular a timepiece capable of indicating the Earth phases as they would be perceived by an astronaut contemplating the sky from the Moon.
  • An object of the present invention is therefore to provide a timepiece capable of indicating which part of the surface of the terrestrial globe is visible from the Moon.
  • the present invention relates to a timepiece comprising a time base, a dial and means for displaying the time controlled by said time base, characterized in that it comprises astronomical display means provided for indicating on a map of the terrestrial globe, visible in at least part of said dial, the part of the surface of the Earth visible from the Moon.
  • the wearer of the timepiece can, by consulting it, obtain a precise indication of the part of the Earth visible from the Moon.
  • the timepiece further comprises phase display means for indicating on said map the district of the Earth lit by the Sun.
  • the wearer of the timepiece can, at any time, obtain realistic information on the view of the Earth that an astronaut would have from the surface of the Moon.
  • the astronomical display means of the timepiece are formed by a rotating disc mounted under the dial coaxially with the hands, this disc carrying at its periphery a circular series of views of the Earth retracing a rotation of a full revolution of the Earth around its axis, these views appearing successively through a window of the dial as the disc rotates, so that a rotation of the disc from a given angle results in an equivalent rotation of the Earth as it appears in the window.
  • the Earth map is represented on the dial in polar projection
  • the astronomical display means are formed by a mobile provided to rotate in front of the dial around a axis coincides with the pole of said card, this mobile comprising a line or axis extending prependicularly on either side of the axis of rotation, so as to appear on the card a line of demarcation between the hemisphere of Earth visible from the Moon and the other hemisphere.
  • the timepiece shown in FIGS. 1a and 1b is a wristwatch 1 conventionally comprising an hour hand 2 and a minute hand 3 intended to be actuated by a movement (not shown) so as to rotate in front of a dial 5, a crown for setting the time 7 is also provided in particular to enable the respective positions of the hour hands 2 and minutes 3 to be corrected.
  • the dial 5 of watch 1 and provided with '' a window 9, at twelve o'clock, through which may appear graphic indications 11 carried by a ring 13 arranged to turn behind the dial.
  • the rotating ring 13 is visible in Figure 1a.
  • watch 1 In watch 1 according to the invention, it occupies the position generally occupied by the date disc in a conventional watch.
  • This rotating ring constitutes in the present embodiment, the astromomic display means provided for indicating the part of the surface of the Earth visible from the Moon. To this end, it carries as graphic indications twelve views of the Earth (three of these being referenced 11 in FIG. 1a). These views of the Earth 11 form a circular sequence representing the complete turn that the earth performs around its axis in the space of a day.
  • the ring shown in Figure 1a having twelve views, the transition from one view to the next corresponds to a twelfth of a turn, that is to say at 30 °.
  • the rotating ring 13 carrying the views of the Earth can conventionally be provided with an internal toothing 12 and a jumper spring (not shown) to allow the movement to drive it step by step, so as to make successive in the window 9 the views of the Earth 11.
  • the view of the Earth visible in the window being intended to represent the Earth as it is seen from the Moon, the ring 13 must make a turn substantially every 24 hours, 48 minutes and 45.78 seconds.
  • gear ratio 10 21 x 47 29 x 71 53 almost exactly corresponds to the ratio between the duration of a rotation of the Earth relative to the Sun, i.e. 24 hours, and the duration of a rotation of the Earth relative to the Moon, i.e. 24 hours hours 48 minutes and 45.48 seconds. Thanks to the gear ratios indicated above, the person skilled in the art will be able, without problem, to design an appropriate gear train.
  • the astronomical display means indicating the part of the surface of the Earth visible from the Moon.
  • the phase display means intended to indicate the quarter of the Earth lit by the Sun.
  • the watch further comprises a phase disc 15 which is mounted between the ring 13 is the dial 5.
  • This disc 15 is made of a transparent material, for example glass, and it has on its surface two zones of circular shapes located diametrically opposite one another, inside which the transparent material has been treated to darken it (these zones are both referenced 17 in FIG. 1a) .
  • the phase disc 15 is mounted to rotate about an axis (not referenced) which is located a short distance from the window 9, so that during the rotation of the disc , the two dark circles 17, pass in turn through this window.
  • the ring 13 being, as has been said, disposed under the phase disk 15 made of transparent material.
  • the views of the Earth it carries are visible through the window 9 in transparency.
  • one of the dark circles 17 passes through the window 9, it constitutes a shadow which can partially or completely cover the view of the earth 11.
  • the progressive rotation of the phase disc 15 varies the relative importance of the part of the view of the Earth visible in transparency compared to the obscured part.
  • This arrangement is shown in Figure 1b.
  • the phases of Earth seen from the Moon have the same period as the phases of Moon seen from Earth, i.e. 29.530588402 days.
  • a gear train driving the phase disc 15 of one revolution every 59 days is used for the Earth phases.
  • This cog can be identical to those commonly used for phase watches Moon, we will not describe it here.
  • the phase 15 disc comprising, as we have seen, two diametrically opposite dark circles, the Earth will be masked by a dark circle twice per revolution of the disc 15. Under these conditions, this disc performing one revolution in 59 days, the Land phases will have a period of 29.5 days.
  • the embodiment of the present invention which we have just described allows, as we have just seen, to indicate simultaneously in a single dial window the phase of the Earth and the part of the surface of the globe visible from the Moon .
  • the timepiece 21 represented in this latter figure is also a wristwatch conventionally comprising a 22 hour hand and a 23 minute hand actuated by a movement (not shown) to turn in front of a dial 25, a setting crown.
  • time 27 is still provided in particular to allow the respective positions of hands 22 and 23 to be corrected.
  • the dial 25 carries a view of the terrestrial globe in polar projection. This view extends substantially over the entire surface of the dial and is centered on the axis of the hands 22 and 23.
  • a third mobile 27 formed of two parts 27a and 27b perpendicular to each other .
  • This mobile 27, which has substantially the shape of a T, is mounted to rotate, in front of the dial, coaxially with the hands 22 and 23.
  • the part 27a of the mobile 27, which forms the bar of the T, is constituted by a line or an axis extending perpendicularly on either side of its axis of rotation.
  • the line formed by the part 27a of the mobile forms, as can be seen in FIG. 2, a dividing line dividing the terrestrial globe represented on the dial 25 into two hemispheres.
  • the mobile is intended for be trained at the rate of one revolution every 24 hours, 48 minutes and 45.78 seconds, that is to say at a rate corresponding to the rate of rotation of the Earth as perceived from the Moon. Under these conditions, the first part 27a of the mobile can permanently indicate the limit between the hemisphere of the Earth visible from the Moon and the other hemisphere.
  • the second part 27b of the mobile which forms the leg of the T, is constituted by a needle or an arrow and is provided, in the present embodiment, to indicate on the map of the terrestrial globe the meridian vertically of which the Moon, so as to indicate which of the two hemispheres of the Earth separated by part 27a of the mobile is visible from the Moon.
  • the astronomical display means indicating the part of the surface of the earth visible from the moon.
  • the phase display means intended to indicate the quarter of the earth lit by the Sun.
  • the timepiece 21 also includes an indicator member 29 constituted by a transparent disc. This transparent disc is designed to rotate above the dial 25 coaxially with the hands 22 and 23 and the mobile 27.
  • the disc 29 is subdivided into two symmetrical halves 29a and 29b.
  • the transparent material forming the disc having, in the first half 29a, been tinted so as to darken it.
  • the image of the part of the Earth seen in transparency through the half 29a of the disc 29 appears obscured, while the image of the part of the Earth visible through the other part 29b of the disc appears illuminated.
  • the disc 29 is designed to be driven by the movement of the watch at the rate of one revolution per 24 hours, that is to say at a rhythm corresponding to the rhythm of the alternation of day and night. In this way, the disc 29 can be used to indicate the part of the Earth lit by the Sun, the part of the image of the Earth visible through the clear part 29a of the disc corresponding to the part lit by the Sun, and the part of the image of the Earth visible through the dark part 29b of the disc corresponding to the part of the Earth where it is dark.
  • the combination of the information provided by the astronomical display means (here the mobile 27) and the phase display means (here the transparent disc 29) constitutes for the wearer of the watch an indication, immediately legible, as to the size of the Earth district lit by the Sun.
  • the size of the light district of Terre corresponds to the proportion of the hemisphere visible from the Moon which is not obscured by the dark half 29a of the disc 29.

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  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Electric Clocks (AREA)
  • Displays For Variable Information Using Movable Means (AREA)

Claims (13)

  1. Zeitmeßgerät mit einer Zeitbasis, einem Zifferblatt (5;25) und mit von der Zeitbasis gesteuerten Zeitanzeigemitteln (2,3;22,23), dadurch gekennzeichnet, daß es ferner astronomische Anzeigemittel (13;27) umfaßt, die vorgesehen sind, um auf einer Erdkarte (11), die in mindestens einer Partie des Zifferblatts (5;25) sichtbar ist, diejenige Partie der Erdoberfläche anzuzeigen, die vom Mond aus sichtbar ist.
  2. Zeitmeßgerät nach Anspruch 1, dadurch gekennzeichnet, daß es ferner Phasenanzeigemittel (15,17;29) umfaßt, um auf der Karte die Größe des von der Sonne erleuchteten Bereichs der Erde anzuzeigen.
  3. Zeitmeßgerät nach Anspruch 1, dadurch gekennzeichnet, daß die astronomischen Anzeigemittel (11,13) von einer umlaufenden Scheibe (13) gebildet sind, die unter dem Zifferblatt (5) koaxial mit den Zeigern (2,3) montiert ist, welche Scheibe (13) auf ihrer Peripherie eine runde Abfolge von Erdansichten (11) trägt, welche eine Drehung von einem vollständigen Umlauf der Erde um ihre Achse wiedergibt, welche Ansichten nacheinander hinter einem Fenster (9) des Zifferblatts (5) nach Maßgabe der Drehung der Scheibe (13) erscheinen, derart, daß eine Drehung der Scheibe um einen gegebenen Winkel sich in eine äquivalente Drehung der Erde, so wie sie in dem Fenster erscheint, umsetzt.
  4. Zeitmeßgerät nach Anspruch 3, dadurch gekennzeichnet, daß die Scheibe (13) von der Zeitbasis gesteuert wird, um einen Umlauf im wesentlichen alle 24 Stunden, 48 Minuten und 45,78 Sekunden auszuführen.
  5. Zeitmeßgerät nach Anspruch 3 oder 4, dadurch gekennzeichnet, daß die Scheibe (13) für die Verlagerung um aufeinanderfolgende Schritte vorgesehen ist, wobei jeder Schritt eine neue Ansicht der Erde (11) in das Fenster (9) bringt.
  6. Zeitmeßgerät nach Anspruch 3, dadurch gekennzeichnet, daß die Phasenanzeigemittel von einer halbtransparenten Maske (15,17), verbunden mit einer umlaufenden Achse, gebildet sind, welche Maske vorgesehen ist, um periodisch in dem Fenster (9) derart zu erscheinen, daß sie mindestens teilweise die Ansicht der Erde (11) maskiert.
  7. Zeitmeßgerät nach Anspruch 6, dadurch gekennzeichnet, daß die Maske (15,17) eine Rotationssymmetrie der Ordnung 2 aufweist und daß sie infolgendessen zweimal die Ansicht der Erde (11) während jeder Drehung der umlaufenden Achse maskiert.
  8. Zeitmeßgerät nach Anspruch 7, dadurch gekennzeichnet, daß die umlaufende Achse von der Zeitbasis angesteuert ist, um einen Umlauf etwa alle 59 Tage auszuführen.
  9. Zeitmeßgerät nach Anspruch 1, dadurch gekennzeichnet, daß die Erdkarte auf dem Zifferblatt (25) in Polarprojektion realisiert ist, daß die astronomischen Anzeigemittel von einem Trieb (27) gebildet sind, das für den Umlauf vor dem Zifferblatt (25) um eine mit dem Pol der Karte zusammenfallende Achse montiert ist, und daß das Trieb (27) eine gerade Linie (27a) umfaßt, die sich beidseits der Rotationsachse erstreckt, um jederzeit auf der Karte die Trennungslinie zwischen der vom Mond aus sichtbaren Hemisphäre und jener, die verdeckt ist, anzugeben.
  10. Zeitmeßgerät nach Anspruch 9, dadurch gekennzeichnet, daß das Trieb (27) ferner einen Arm (27b) umfaßt, der sich senkrecht von der Linie (27a) erstreckt, um auf der Karte die Richtung des Mondes anzuzeigen und um bei derselben Gelegenheit anzuzeigen, welche der beiden durch die Linie (27a) getrennten Hemisphären die vom Mond aus sichtbare ist.
  11. Zeitmeßgerät nach Anspruch 9 oder 10, dadurch gekennzeichnet, daß das Trieb (27) von der Zeitbasis gesteuert ist, um einen Umlauf im wesentlichen alle 24 Stunden, 48 Minuten und 45,78 Sekunden auszuführen.
  12. Zeitmeßgerät nach Anspruch 9, 10 oder 11, dadurch gekennzeichnet, daß die Phasenanzeigemittel von einer transparenten Scheibe (29) gebildet sind, die vor dem Zifferblatt (25) drehbar konzentrisch mit dem Trieb (27) montiert ist, und daß eine Hälfte (29a) der transparenten Scheibe gefärbt ist, derart, daß ein Benutzer, welcher die Erdkarte durch die transparente Scheibe (29) betrachtet, eine in den Schatten fallende Hemisphäre und eine beleuchtete Hemisphäre unterscheiden kann.
  13. Zeitmeßgerät nach Anspruch 12, dadurch gekennzeichnet, daß die transparente Scheibe (29) von der Zeitbasis gesteuert ist, um einen Umlauf alle 24 Stunden auszuführen.
EP95100105A 1994-01-12 1995-01-05 Uhr mit Anzeige des vom Mond aus sichtbaren Teiles der Erde Expired - Lifetime EP0663631B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH00086/94A CH686808B5 (fr) 1994-01-12 1994-01-12 Piece d'horlogerie avec indication de la partie de la terre visible depuis la lune.
CH86/94 1994-01-12

Publications (2)

Publication Number Publication Date
EP0663631A1 EP0663631A1 (de) 1995-07-19
EP0663631B1 true EP0663631B1 (de) 1997-07-16

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Application Number Title Priority Date Filing Date
EP95100105A Expired - Lifetime EP0663631B1 (de) 1994-01-12 1995-01-05 Uhr mit Anzeige des vom Mond aus sichtbaren Teiles der Erde

Country Status (7)

Country Link
US (1) US5508979A (de)
EP (1) EP0663631B1 (de)
JP (1) JP3485212B2 (de)
KR (1) KR100347995B1 (de)
CN (1) CN1086812C (de)
CH (1) CH686808B5 (de)
DE (1) DE69500426T2 (de)

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CN113157190A (zh) 2019-05-06 2021-07-23 苹果公司 电子设备的受限操作
US11131967B2 (en) 2019-05-06 2021-09-28 Apple Inc. Clock faces for an electronic device
US11960701B2 (en) 2019-05-06 2024-04-16 Apple Inc. Using an illustration to show the passing of time
DK180684B1 (en) 2019-09-09 2021-11-25 Apple Inc Techniques for managing display usage
EA039063B1 (ru) * 2019-12-20 2021-11-29 Константин Юрьевич ЧАЙКИН Часы для эксплуатации в открытом космическом пространстве
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Also Published As

Publication number Publication date
JP3485212B2 (ja) 2004-01-13
DE69500426D1 (de) 1997-08-21
DE69500426T2 (de) 1998-02-19
US5508979A (en) 1996-04-16
CH686808GA3 (fr) 1996-07-15
CH686808B5 (fr) 1997-01-15
JPH0836065A (ja) 1996-02-06
EP0663631A1 (de) 1995-07-19
CN1086812C (zh) 2002-06-26
CN1109605A (zh) 1995-10-04
KR100347995B1 (ko) 2002-11-29

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