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Moon-phase display device

A technology of moon phase and display area, applied to the mechanical device of time indication, to indicate the time, clock and other directions by visual means, which can solve the problem of occupying thickness and achieve a high degree of accuracy.

Active Publication Date: 2021-01-08
DE LA MFG DHORLOGERIE AUDEMARS PIGUET & CIE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This way of displaying the moon phase is certainly accurate and reliable, but it does occupy a very considerable thickness

Method used

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Examples

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Embodiment Construction

[0024] refer to figure 1 with figure 2 , the display device of the present invention comprises two disks 80, 90 each carrying a series of partial representations of the moon as it would appear at a given moment in a lunar month. The first disc 80 in the form of a crown surrounds a disc 90 which is concentric with the first disc 80 and lies substantially in the same plane. The invention is not limited to this particular arrangement, the first disc may also be the inner disc. In the example shown, each of the two indicator discs 89, 90 carries a series of images of the same part of the moon. The two juxtaposed partial images may give a true representation of the Moon in a predetermined phase of the lunar month. The representation of the moon phases is thus a juxtaposed combination of first and second complementary images occupying fixed and complementary parts of the lunar disk.

[0025] The discs of the example indicated each carry six partial images and are actuated by a ...

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Abstract

The invention relates to a moon-phase display device for a timepiece, comprising: a first display member (80) bearing a plurality of first images (81-86) representing, at least partially, the moon; adisplay zone; and drive means (22, 23, 25, 40, 41, 43, 63, 71, 72, 61, 62) arranged to move the first display member (80) in successive jumps with reference to the display zone, in order to display asuccession of moon images. The device is original in that the lengths of time for which the first images are displayed are not all equal.

Description

technical field [0001] The present invention relates to timepieces for displaying the phases of the moon, in particular but not exclusively to timepieces for displaying the phases of the moon on the dial of a wrist watch, pocket watch, display device on the back of a watch, or any other display device. Background technique [0002] Devices for displaying the phases of the moon are well known in the field of horology. Conventionally, the phases of the moon are indicated by a movable disc that performs a complete revolution every two months, on which the moon is represented twice. A hole of a particular form in the dial reveals part of one or the other image, so as to show the form corresponding to the phases of the moon. US508467 and many other similar publications describe devices of this type. [0003] The form of the moon shown by these devices is correct only at full moon and in near new moon phases (when the object is crescent). These display devices cannot accurately...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G04B19/26
CPCG04B19/268
Inventor G·帕皮J·马特尔
Owner DE LA MFG DHORLOGERIE AUDEMARS PIGUET & CIE
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