Title:
周波数信号生成装置および周波数信号生成システム
Document Type and Number:
Japanese Patent JP6841190
Kind Code:
B2
Abstract:
A frequency signal generation device includes a substrate, a light source that is disposed on a surface of the substrate, and an atom cell that is disposed on the surface of the substrate. The atom cell contains gaseous alkali metal atoms and includes a first portion through which light emitted from the light source passes, a second portion housing a liquid alkali metal atom, and a third portion which connects the first portion to the second portion. A marker is provided that indicates a direction in which the liquid alkali metal atoms move to the third portion by gravity when the surface is vertically oriented.
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Inventors:
Yoshiyuki Maki
Application Number:
JP2017168094A
Publication Date:
March 10, 2021
Filing Date:
August 31, 2017
Export Citation:
Assignee:
Seiko Epson Corporation
International Classes:
H03L7/26
Domestic Patent References:
| JP201553304A | ||||
| JP201615363A | ||||
| JP2015164288A |
Attorney, Agent or Firm:
Yukio Fuse
Mitsue Obuchi
Mitsue Obuchi