DE102014007331A1 - Optically active dials for wristwatches - Google Patents

Optically active dials for wristwatches Download PDF

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Publication number
DE102014007331A1
DE102014007331A1 DE102014007331.9A DE102014007331A DE102014007331A1 DE 102014007331 A1 DE102014007331 A1 DE 102014007331A1 DE 102014007331 A DE102014007331 A DE 102014007331A DE 102014007331 A1 DE102014007331 A1 DE 102014007331A1
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Prior art keywords
dials
transition metal
doped yag
metal ions
incorporating
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DE102014007331.9A
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German (de)
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Anmelder Gleich
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    • 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
    • G04B19/06—Dials
    • G04B19/12—Selection of materials for dials or graduations markings

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)

Abstract

Zifferblätter, die aus SE-dotiertem Yttrium Aluminium Granat bestehen.Dial faces made of SE-doped yttrium aluminum garnet.

Description

Die Erfindung betrifft Zifferblätter auf Yttrium Aluminiumgranat (Y3 [8]AL2 [6]AL3 [4]O12) Basis, die durch Dotierung von „Seltenen Erden”(SE)-Ionen und/oder Übergangsmetallionen im Umfang deutlich gefärbt sind bzw. optisch aktiv werden und eine leuchtende Korona ausbilden bzw. einen Farbwechsel bei wechselnder Beleuchtung zeigen.The invention relates to dials on yttrium aluminum garnet (Y 3 [8] AL 2 [6] AL 3 [4] O 12 ) base, which are clearly colored by doping of "rare earth" (SE) ions and / or transition metal ions in the circumference or optically active and form a luminous corona or show a color change with changing lighting.

YAG eignet sich auf Grund seiner hohen Härte (8,5) – ähnlich dem Saphir – hervorragend als kratzerresistentes Material für Zifferblätter.Due to its high hardness (8.5) - similar to the sapphire - YAG is excellently suited as a scratch-resistant material for dials.

Die optisch aktiven Eigenschaften von SE-Ionen dotiertem YAG sind:
Farbwechsel bei unterschiedlichen Lichtquellen wie z. B. rosa zu lindgrün bei Ho-dotiertem YAG oder farblos zu violett-blau bei Nd-dotiertem YAG (Sonnenlicht-Kunstlicht), sowie Fluoreszenzeigenschaften wie z. B. bei Cer-dotiertem YAG.The optically active properties of SE-ion-doped YAG are:
Color change with different light sources such. B. pink to lime green in Ho-doped YAG or colorless to purple-blue at Nd-doped YAG (sunlight artificial light), as well as fluorescence properties such. As in cerium-doped YAG.

Cer dotierter YAG besitzt 2 breite Absorptionsbanden bei 350 nm und 460 nm.Cerium doped YAG has 2 broad absorption bands at 350 nm and 460 nm.

Die bei diesen Wellenlängen absorbierte UV-Strahlung wird durch Fluoreszenz in gelbes sichtbares Licht umgewandelt.The UV radiation absorbed at these wavelengths is converted to yellow visible light by fluorescence.

Die so mit Cer dotierten Zifferblätter zeigen durch den Lichtleiteffekt eine leuchtende Korona entlang der Umfangkante des Zifferblattes.The so doped with cerium dials show by the Lichtleiteffekt a luminous corona along the peripheral edge of the dial.

Aufgrund der Kristallstruktur des Korunds (Saphir) sind die Dotiermöglichkeiten sehr begrenzt.Due to the crystal structure of the corundum (sapphire), the doping possibilities are very limited.

Der YAG bietet eine viel größere Möglichkeit an Dotierstoffen und somit eine weit größere Farbenvielfalt als der Korund (Saphir). Im Saphir können auch keine nennenswerten Konzentrationen an SE-Ionen eingebaut werden.The YAG offers a much greater possibility of dopants and thus a far greater variety of colors than the corundum (sapphire). In sapphire, no appreciable concentrations of SE ions can be incorporated.

Auf dem 8-fach koordinierten Dodekaederplatz des YAG können fast alle SE-Ionen eingebaut werden.Almost all SE ions can be incorporated on the 8-coordinate dodecahedral site of the YAG.

Auf dem 6-fach koordinierten Oktaederplatz können alle farbgebenden Übergangsmetallionen eingebaut werden.On the 6-coordinate octahedral square, all transition metal ions can be incorporated.

Dadurch ist eine bedeutend größere Farbvielfalt beim YAG möglich als beim Saphir.As a result, a significantly greater variety of colors is possible with the YAG than with the sapphire.

Durch Dotieren von SE-Ionen auf dem Dodekaederplatz und Übergangsmetallionen auf dem Oktaederplatz lassen sich Farbmischungen erzielen, die bei Saphir unmöglich sind.By doping SE ions at the dodecahedral site and transition metal ions at the octahedral site, color mixtures can be achieved that are impossible with sapphire.

Claims (7)

Zifferblätter, die dadurch gekennzeichnet sind, dass sie aus SE-dotiertem Yttrium Aluminium Granat bestehen.Dials characterized by being made of SE-doped yttrium aluminum garnet. Zifferblätter aus SE-dotiertem YAG bei dem die Konzentration der SE-Ionen auf dem 8-fach koordinierten Gitterplatz zwischen 0,006 und 3 At.% beträgt.SE-doped YAG dials in which the concentration of SE ions on the 8-coordinate lattice site is between 0.006 and 3 at.%. Zifferblätter aus SE-dotiertem YAG bei dem folgende SE-Ionen auf dem 8-fach koordinierten Gitterplatz eingebaut werden: Ce3+, Pr3+, Nd3+, Sm3+, Eu3+, Ho3+, Er3+SE-doped YAG dials incorporating the following SE ion into the 8-coordinate lattice site: Ce3 +, Pr3 +, Nd3 +, Sm3 +, Eu3 +, Ho3 +, Er3 + Zifferblätter aus SE-dotiertem YAG bei denen Cer als Codotierung zur Verstärkung der Lichtkorona auf dem Dodekaederplatz eingebaut ist.SE-doped YAG dials incorporating cerium as a codoping to reinforce the light corona in the dodecahedral space. Zifferblätter aus SE dotiertem YAG bei denen Übergangsmetallionen als Farbmischungskomponente eingebaut werden.SE-doped YAG dials incorporating transition metal ions as a color mixing component. Zifferblätter aus SE-dotiertem YAG mit Codotierung mit Übergangsmetallionen, bei denen folgende Übergangsmetallionen eingebaut werden: Ti3+, V3+, Cr3+, Co2+.SE-doped YAG dials with transition metal ion codoping incorporating the following transition metal ions: Ti3 +, V3 +, Cr3 +, Co2 +. Zifferblätter aus SE-dotiertem YAG mit Codotierung von Übergangsmetallionen (Ti3+, V2+, Cr3+, Co2+) bei denen die Konzentration der Übergangsmetallionen auf dem Oktaederplatz zwischen 0,01 und 1 At.% beträgt.SE-doped YAG faces with codoped transition metal ions (Ti3 +, V2 +, Cr3 +, Co2 +) where the concentration of transition metal ions in the octahedral site is between 0.01 and 1 at.%.
DE102014007331.9A 2014-05-17 2014-05-17 Optically active dials for wristwatches Withdrawn DE102014007331A1 (en)

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DE102014007331.9A DE102014007331A1 (en) 2014-05-17 2014-05-17 Optically active dials for wristwatches

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DE102014007331.9A DE102014007331A1 (en) 2014-05-17 2014-05-17 Optically active dials for wristwatches

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH663625A5 (en) * 1982-02-26 1987-12-31 Inst Fiz I An Armssr SINGLE CRYSTAL JEWELERY MATERIAL BASED ON ALUMINUM GRENADES.
US20030079671A1 (en) * 2001-10-31 2003-05-01 Toyoda Gosei Co., Ltd. Indication system of meter part
WO2013138945A2 (en) * 2012-03-21 2013-09-26 Daniel Rytz Method for forming a light diffraction window in at least one particular area of an object
EP2730636A1 (en) * 2012-11-07 2014-05-14 Rolex S.A. Persistent phosphorescent composite material
WO2015106828A1 (en) * 2014-01-20 2015-07-23 The Swatch Group Research And Development Ltd Timepiece with at least one photoluminescent component

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH663625A5 (en) * 1982-02-26 1987-12-31 Inst Fiz I An Armssr SINGLE CRYSTAL JEWELERY MATERIAL BASED ON ALUMINUM GRENADES.
US20030079671A1 (en) * 2001-10-31 2003-05-01 Toyoda Gosei Co., Ltd. Indication system of meter part
WO2013138945A2 (en) * 2012-03-21 2013-09-26 Daniel Rytz Method for forming a light diffraction window in at least one particular area of an object
EP2730636A1 (en) * 2012-11-07 2014-05-14 Rolex S.A. Persistent phosphorescent composite material
WO2015106828A1 (en) * 2014-01-20 2015-07-23 The Swatch Group Research And Development Ltd Timepiece with at least one photoluminescent component

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