EXTERIOR PART FOR TIMEPIECE AND TIMEPIECE

To provide an exterior part for a timepiece which is made of shiny metal and thus is brighter.SOLUTION: An external case 2 (an example of an exterior part for a timepiece) includes: a metal base material 10; and a multilayer reflection layer 20 covered with at least a part of the base material 10. T...

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Bibliographische Detailangaben
Hauptverfasser:	TAKAHASHI HIROKAZU, TSUKAMOTO WATARU, TAKAHASHI YOSHITAKA, KAWAKAMI ATSUSHI, SOGO TOMOHIKO
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	BRACELETS COINS HABERDASHERY HOROLOGY HUMAN NECESSITIES JEWELLERY MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL MECHANICALLY-DRIVEN CLOCKS OR WATCHES OTHER PERSONAL ADORNMENTS PHYSICS TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
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Beschreibung
Zusammenfassung:	To provide an exterior part for a timepiece which is made of shiny metal and thus is brighter.SOLUTION: An external case 2 (an example of an exterior part for a timepiece) includes: a metal base material 10; and a multilayer reflection layer 20 covered with at least a part of the base material 10. The multilayer reflection layer 20 has a structure in which a first inorganic material layer 11 with a first index of refraction and a second inorganic material layer 12 with a second index of refraction higher than the first index of refraction are alternately deposited.SELECTED DRAWING: Figure 2 【課題】金属光沢に優れ、明るさが向上した時計用外装部品を提供すること。【解決手段】外装ケース２（時計用外装部品の一例）は、金属製の基材１０と、基材１０の表面の少なくとも一部に被覆された多層反射層２０と、を有し、多層反射層２０は、第１屈折率を有する第１無機材料層１１と、第１屈折率より高い第２屈折率を有する第２無機材料層１２とが、交互に積層された構造を有する。【選択図】図２