Title:
The dial window for indicating instruments
Document Type and Number:
Japanese Patent JP6068862
Kind Code:
B2
Abstract:
An indicating instrument dial plate includes a substrate that is formed in a plate shape, made of a transparent or semi-transparent material, has a front face including a hairline-treated surface and has a rear face which is irradiated with a dial plate illumination light from a light source inside an indicating instrument, and a half-mirror layer that is formed in a shape of a thin film covering the hairline-treated surface by sputtering and adapted to allow a portion of external light incident to the front face of the substrate from the outside of the indicating instrument to be transmitted into the substrate and to allow a portion of the external light to be reflected. The hairline-treated surface is made by forming fine line-shaped grooves on the front face of the substrate. The hairline-treated surface includes hairline-patterned unevenness which diffuses the external light.
Inventors:
Ishihara Gosei
Hirofumi Mikami
Hirofumi Mikami
Application Number:
JP2012172322A
Publication Date:
January 25, 2017
Filing Date:
August 02, 2012
Export Citation:
Assignee:
Yazaki Corporation
International Classes:
G01D13/04; G01D11/28
Domestic Patent References:
| JP2008089479A | ||||
| JP2008164366A |
Attorney, Agent or Firm:
Patent business corporation glory patent office
Hironori Honda
Kiharu Masaharu
Toshimitsu Ichikawa
Hironori Honda
Kiharu Masaharu
Toshimitsu Ichikawa