EP0577673B1 - Uhr mit analoganzeige - Google Patents

Uhr mit analoganzeige Download PDF

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Publication number
EP0577673B1
EP0577673B1 EP92907414A EP92907414A EP0577673B1 EP 0577673 B1 EP0577673 B1 EP 0577673B1 EP 92907414 A EP92907414 A EP 92907414A EP 92907414 A EP92907414 A EP 92907414A EP 0577673 B1 EP0577673 B1 EP 0577673B1
Authority
EP
European Patent Office
Prior art keywords
light
clock
light beam
rotating means
light source
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
EP92907414A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0577673A1 (de
Inventor
Ingo Maurer
Ron Arad
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0577673A1 publication Critical patent/EP0577673A1/de
Application granted granted Critical
Publication of EP0577673B1 publication Critical patent/EP0577673B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C17/00—Indicating the time optically by electric means
    • G04C17/02—Indicating the time optically by electric means by electric lamps
    • 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
    • G04B19/34—Position of the hands projected optically

Definitions

  • the present invention relates to a watch with an analog display by means of a time-dependent, closely bundled light beam that fulfills a pointer function, with a light source for generating the closely bundled light beam and with a rotating device driven by a clockwork for generating the time-dependent circulation of the light beam according to the preamble of the patent claim 1.
  • Typical clocks such as those used as grandfather clocks, have a dial behind which a clockwork is arranged which rotates at least one pointer by means of an axis extending through the dial. The viewer can read the time by comparing the position of the hands with the dial serving as a reference surface.
  • an analog display is formed by an encircling light beam which appears as a light spot on a transparent peripheral section of the watch case, which fulfills a dial function.
  • the circumferential, transparent part of the dial stands in a vertical position in front of the viewer.
  • the rotary device shown there for generating the time-dependent circulation of the light beam has a horizontal axis of rotation, while the plane in which the light beam rotates is vertical.
  • the light source itself emits a horizontally directed light beam, which is deflected into the vertical plane by the rotating device which can be rotated about the horizontal axis.
  • Patent Abstracts of Japan, vol. 6, no. 38 (P105) [916], March 9, 1982 & JP-A-56154688, November 30, 1981 shows in its English-language abstract a clock with an analog display by means of a time-dependent, narrowly focused light beam that fulfills a pointer function, with a fixed light source for generating the narrowly concentrated light beam and with a rotating mechanism driven by a clockwork which rotates around a horizontal axis in order to form a time-dependent circulation of the light beam in a vertical plane.
  • the cross-sectional representation shown in the abstract shows that the rotating light beams thus formed strike a clock face surface shown only in cross section.
  • DE-B-2407549 shows a device for the optical display of the time with a dial, which has through holes at a number of minute positions, with a light bulb mounted on the back in the middle of the dial, the light beam of which is driven by a clockwork-driven light deflection device one of the through holes is deflected so that the current time can be displayed by its illumination.
  • the US-A-3,983,688 shows an internally illuminable globe, which can be illuminated on the inside with a white light to clarify the day zone and with a blue light to clarify the night zone.
  • the white light and the blue light are generated by glass fiber optics with downstream color filters, which, depending on the time of day, rotate around a vertical axis with a motor.
  • the present invention has for its object to provide a watch with such a technology that the technology gives the designer greater freedom in the design of the watch.
  • the invention for the first time frees itself from the compulsory idea given in the prior art that a watch with an analog display should have a pointer element with a fixed size, which represents the time due to its angular position relative to a reference surface with a dial function.
  • the invention provides a watch in which a rotating light beam emanates from a rotating device which essentially rotates around a vertical axis, so that the light beam rotates in a substantially horizontal plane and without what is considered necessary in the prior art Striking a reference surface with a dial function on surfaces of the room surrounding the clock, such as the walls of the room, generates a time-dependent, moving light mark.
  • the viewer can recognize the current time from the local position of the light spot that moves on the wall depending on the time. This is possible, however not necessarily that reference marks are attached to the wall of the room in which the clock according to the invention is installed.
  • no dial belonging to the watch forms the reference surface for determining the position of the hands, but elements, surfaces or walls of the space surrounding the watch, on which the light mark generated by the light beam migrates, assume a dial function.
  • the clock according to the invention which is designated in its entirety by reference number 1, comprises a fixed housing part 2, in which a light source in the form of a halogen lamp 3 is arranged.
  • the halogen lamp 3 is arranged such that its light is emitted in the direction of a vertical axis through a cylindrical opening 5 in the fixed housing part 2.
  • the cylindrical opening 5 is enclosed by a collar-shaped extension 6, which symbolizes a rotary guide device for a tubular housing part 7 which can be rotated about the vertical axis 4. It will be apparent to those skilled in the art that any suitable pivot connection between the fixed housing part 2 and the rotatable, tubular housing part 7 can be used instead of the rotary bearing shown.
  • the rotatable, tubular housing part 7 is surrounded by a ring gear 8, which meshes with a drive pinion 9 of an electric stepping motor 10. It is obvious to a person skilled in the art that any other clockwork can be used instead of the electric stepping motor 10.
  • a mechanical spring mechanism is only mentioned here, for example.
  • an optical system 11 Arranged within the rotatable, tubular housing part 7 is an optical system 11, which converts the light emitted by the halogen illuminant 3 into a narrow, narrowly bundled light beam, which leaves the optical system 11 in a vertical direction upwards.
  • the shape of the optics 11 is immaterial for the purposes of the present invention. Typically, however, the optics comprise lenses 12, 13, a filter disk 14, an aperture 15 and a closure part 16.
  • the mirror 18 can also be replaced by other deflecting devices, such as a prism.
  • the light beam emanating from the mirror 18 extends therefrom in a substantially horizontal direction without hitting a reference surface of the clock with a dial function, and therefore passes through the space in which the clock 1 is set up to surfaces of the Space, which can be, for example, the walls 19 of the room. Therefore, the light beam rotating around the vertical axis 4 in the essentially horizontal plane of the room forms an essentially punctiform light mark on surfaces or walls 19 of the room which moves over the surfaces or walls 19 of the room as a function of time.
  • the space in which the viewer is located forms a reference surface which enables the position of the light mark generated by the light beam to be assigned to a time.
  • reference elements 20 are attached to the walls, which, for example, indicate the local position of the light mark generated by the light beam every hour on the hour.
  • reference elements 20 consist of a light-conducting material, such as a colored plastic film body, so that such a plastic film body serving as reference element 20 glows at least in the area of its film contours when the light beam strikes it.
  • FIG. 2 A second embodiment of the watch 1 according to the invention is explained in more detail below with reference to FIG. 2.
  • Those elements of the embodiment according to FIG. 2 which correspond to those according to FIG. 1 are identified by the same reference numerals, so that a renewed description of these elements can be omitted.
  • the light source which is formed in FIG. 1 by a halogen illuminant 3 with associated optics 11, is replaced by a laser light source 21.
  • a laser light source emits a closely bundled, coherent light beam without the need for optics 11 for bundling purposes.
  • the laser light source 21 is arranged such that the laser beam emitted by it in the direction the vertical axis 4 is delivered.
  • the deflecting mirror 18 is replaced by a prism 22.
  • This embodiment of the invention is suitable for a particularly compact implementation of the clock 1.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
EP92907414A 1991-04-12 1992-04-03 Uhr mit analoganzeige Expired - Lifetime EP0577673B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4112043 1991-04-12
DE4112043A DE4112043A1 (de) 1991-04-12 1991-04-12 Uhr mit analoganzeige
PCT/DE1992/000282 WO1992018914A1 (de) 1991-04-12 1992-04-03 Uhr mit analoganzeige

Publications (2)

Publication Number Publication Date
EP0577673A1 EP0577673A1 (de) 1994-01-12
EP0577673B1 true EP0577673B1 (de) 1994-09-21

Family

ID=6429490

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92907414A Expired - Lifetime EP0577673B1 (de) 1991-04-12 1992-04-03 Uhr mit analoganzeige

Country Status (3)

Country Link
EP (1) EP0577673B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (2) DE4112043A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
WO (1) WO1992018914A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0990196B1 (en) * 1997-06-18 2005-12-07 IDT-LCD Holdings (BVI) Limited Projection clock
DE10340878A1 (de) * 2003-09-04 2005-03-31 BSH Bosch und Siemens Hausgeräte GmbH Vorrichtung für Küchen

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3983688A (en) * 1975-06-19 1976-10-05 The Raymond Lee Organization, Inc. World clock device
US4374623A (en) * 1980-05-05 1983-02-22 Simon Jerome H Light beam clock
DE3515521A1 (de) * 1985-04-30 1986-10-30 Paul Lynch Zeituhr
DE8805505U1 (de) * 1988-04-26 1988-11-24 Winkhardt, Holger, 3000 Hannover Uhr mit analoger Anzeige

Also Published As

Publication number Publication date
DE4112043A1 (de) 1992-10-15
DE59200544D1 (de) 1994-10-27
EP0577673A1 (de) 1994-01-12
WO1992018914A1 (de) 1992-10-29
DE4112043C2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1993-07-22

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