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

    【課題】受光装置及び通信システムを提供する。【解決手段】通信システムにおいて、地上局200の望遠鏡部300は、鏡筒部310と、鏡筒部内に配置され、外部から入射する光を反射する主鏡320と、鏡筒部内に配置され、主鏡が反射した光を反射する副鏡330と、副鏡が反射した光を受光する受光部400と、副鏡の、主鏡からの光が入射する側とは反対側に配置され、外部から入射する光を外部に向けて反射する反射面334と、を備える。光通信部を含む受光部400は、受光装置光アンテナと、光センサアレイと、送信機によって出力され、望遠鏡部に入射して望遠鏡部から出力された光を光アンテナと光センサアレイとに向けて分割するビームスプリッタと、光センサアレイに入射する光が光センサアレイの中心に位置するように、望遠鏡部の軸を調整する軸制御部と、光アンテナを用いた光通信を実行する。【選択図】図3


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    Title :

    LIGHT RECEIVING DEVICE AND COMMUNICATION SYSTEM


    Additional title:

    受光装置及び通信システム


    Contributors:

    Publication date :

    2022-10-13


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    H04B TRANSMISSION , Übertragung / B64C AEROPLANES , Flugzeuge / B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT / H01L Halbleiterbauelemente , SEMICONDUCTOR DEVICES



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