Title:
太陽電池付き発電装置、太陽電池付き時計
Document Type and Number:
Japanese Patent JP7078528
Kind Code:
B2
Abstract:
To improve power generating efficiency of a solar battery 30, and suppress reduction of aesthetic property.SOLUTION: A wrist watch 1 has: a dial plate 10 including a light color part W and a dark color part BK having higher light transmissivity than light color part W, which a user can view; and a solar battery 30 which generates power by making light transmitted through the dial plate 10 be incident into the battery. In the solar battery 30, a power generation amount of power generation by incidence of a blue light component B and a green light component G is larger than power generation by incidence of red light component R out of visible light, and the dial plate 10 includes an absorption layer 11 which absorbs the red light component R at higher light absorption rate than light absorption rate to the blue light component B and the green light component G in the dark color part BK.SELECTED DRAWING: Figure 2
Inventors:
Yoshiharu Takane
Application Number:
JP2018238025A
Publication Date:
May 31, 2022
Filing Date:
December 20, 2018
Export Citation:
Assignee:
CITIZEN WATCH CO.,LTD.
International Classes:
G04B19/06; G04C10/02; H01L31/048
Domestic Patent References:
| JP5029641A | ||||
| JP63115792U | ||||
| JP2002148358A | ||||
| JP2002148368A | ||||
| JP8334572A |
Foreign References:
| WO1996031810A1 |
Attorney, Agent or Firm:
Haruka International Patent Office