A device for detecting two-dimensional images such as the direct image and spectrum of faintly lit celestial objects. The image of the celestial object is focused on a photoelectric surface and converted into photoelectrons to obtain an electronic image. In the early days, the electronic image was detected using a photographic plate, but nowadays solid-state imaging devices are mainly used. Source : Heibonsha Encyclopedia About MyPedia Information |
光の微弱な天体の直接像やスペクトルなどの二次元画像検出を行うための装置。天体画像を光電面に結像させ,光電子に変換して電子像を得る。初期には電子像を写真乾板で検出したが,現在は固体撮像素子を使うものが主。
出典 株式会社平凡社百科事典マイペディアについて 情報 |
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