Watch component, watch, and manufacturing method for watch component
AssigneeSeiko Epson Corporation
InventorsTsubasa Fuji, Hikonosuke Uwai, Ami Kugimoto, Ai Yoshinaga
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Abstract
A watch component includes a base material including a first region having a surface at which a plurality of recessed portions are formed and a second region having a smooth surface, and a multilayer film configured to cover at least a portion of the base material. When viewed in a cross-sectional view taken along a thickness direction of the base material, the plurality of recessed portions are defined by a first side and a second side that is tilted with respect to the first side and is in contact with the first side at an end portion, and a hue angle of the first region is greater than a hue angle of the second region.
Claims6
A watch component comprising:
- a base material including a first region having a surface at which a plurality of recessed portions are formed and a second region having a smooth surface;
- and
- a multilayer film configured to cover each of the first region and the second region,
- wherein the multilayer film includes a color adjustment film including a material containing at least one of Na5Al3F14, Na3AlF6, AlF3, CaF2, BaF2, YF3, LaF3, CeF3, and NdF3,
- when viewed in a cross-sectional view taken along a thickness direction of the base material, the plurality of recessed portions are defined by a first side and a second side, the second side being tilted with respect to the first side and being in contact with the first side at an end portion, and
- in the cross-sectional view, a ratio of a length of the second side with respect to the thickness direction of the base material and a length of the second side with respect to a direction orthogonal to the thickness direction is greater than 1:6 such that a hue angle of light interfered with the multilayered film in the first region is greater than a hue angle of light interfered with the multilayered film in the second region.
Dependencies are inferred from the claim text.