Title:
受光装置及び通信システム
Document Type and Number:
Japanese Patent JP7320018
Kind Code:
B2
Abstract:
To provide a light receiving device and a communication system.SOLUTION: In a communication system, a telescope unit 300 of a ground station 200 includes a lens barrel part 310, a main mirror 320 arranged in the lens barrel part to reflect light made incident from the outside, a secondary mirror 330 arranged in the lens barrel part to reflect light reflected by the main mirror, a light reception part 400 for receiving the light reflected by the secondary mirror, and a reflection surface 334 arranged on a side opposite from a side on which the light from the main mirror is made incident to reflect light made incident from the outside toward the outside. The light reception part 400 including a light communication part executes light communication by using a light receiving device light antenna, an optical sensor array, a beam splitter for splitting light outputted by a transmitter, made incident on the telescope unit and outputted from the telescope unit toward the light antenna and the optical sensor array, an axis control part for adjusting the axis of the telescope unit such that the light made incident on the optical sensor array is located at the center of the optical sensor array, and the light antenna.SELECTED DRAWING: Figure 3
Inventors:
Junichi Nakajima
Ayumu Yabuki
Takahiro Kunimi
Ayumu Yabuki
Takahiro Kunimi
Application Number:
JP2021057859A
Publication Date:
August 02, 2023
Filing Date:
March 30, 2021
Export Citation:
Assignee:
SoftBank Corp.
International Classes:
H04B10/67; B64C39/02; B64D47/00; H01L31/0232; H04B10/112
Domestic Patent References:
| JP2001349945A | ||||
| JP2012156685A | ||||
| JP2000244408A |
Foreign References:
| WO2015122349A1 |
Attorney, Agent or Firm:
Patent Attorney Corporation RYUKA International Patent Office
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