phototube

/fˌoʊɾoʊtˈub/ noun

A gas-filled electron tube that has a photosensitive cathode.

Word Origin From Greek phōs 'light' and Latin tubus 'tube' — a phototube is literally a light tube, an electronic device that converts light into electrical signals. Tube gives us tubular, tubing, and tubule. The photo- part is the same as in photograph, photon, etc.

noun A gas-filled electron tube that has a photosensitive cathode. countable

Early television cameras utilized a phototube to convert light into electrical signals.

(名词) 光电管 【光电管(含气体、具光敏阴极的电子管)】

早期的电视摄像机使用光电管将光转换为电信号。

(sustantivo) fototubo [Un tubo electrónico lleno de gas que tiene un cátodo fotosensible.]

Las primeras cámaras de televisión utilizaban un fototubo para convertir la luz en señales eléctricas.

(nom) tube photoélectrique; cellule photoélectrique [Tube électronique rempli de gaz, muni d'une cathode photosensible.]

Les premières caméras de télévision utilisaient un **phototube** pour convertir la lumière en signaux électriques.

(Substantiv) Fotozelle [**Fotozelle** *f.* – eine gasgefüllte Elektronenröhre mit einer lichtempfindlichen Kathode, die Licht in elektrische Signale umwandelt.]

Frühe Fernsehkameras nutzten eine **Phototube**, um Licht in elektrische Signale umzuwandeln.

(名詞) 光感応性陰極を持つガス入り電子管。光信号を電気信号に変換する。

初期のテレビカメラは光を電気信号に変換するために **phototube** を使用していた。

(substantivo) fototubo; célula fotoelétrica [Um tubo eletrônico cheio de gás que possui um cátodo fotossensível.]

As primeiras câmeras de televisão utilizavam um fototubo para converter luz em sinais elétricos.

Word parts: photo + tube

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