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1 angle d'ouverture
апертурный угол в пространстве предметов
σA
Угол между оптической осью и лучом, входящим из осевой точки предмета и идущим на край апертурной диафрагмы.
Примечание
Углы отсчитывают от оптической оси.
[ ГОСТ 7427-76]Тематики
- оптика, оптические приборы и измерения
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плоский угол зрения ФЭПП
Угол в нормальной к фоточувствительному элементу плоскости между направлениями падения параллельного пучка излучения, при которых напряжение или ток фотосигнала ФЭПП уменьшается до заданного уровня
Обозначение
2ß
[ ГОСТ 21934-83]Тематики
- приемники излуч. полупроводн. и фотоприемн. устр.
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угол разделки (кромок)
Угол между скошенными кромками свариваемых частей
[Терминологический словарь по строительству на 12 языках (ВНИИИС Госстроя СССР)]Тематики
- сварка, резка, пайка
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D. Gesichtsfeldwinkel
E. Angular field of view
F. Angle d'ouverture
2b
Угол в нормальной к фоточувствительному элементу плоскости между направлениями падения параллельного пучка излучения, при которых напряжение или ток фотосигнала ФЭПП уменьшается до заданного уровня
Источник: ГОСТ 21934-83: Приемники излучения полупроводниковые фотоэлектрические и фотоприемные устройства. Термины и определения оригинал документа
Франко-русский словарь нормативно-технической терминологии > angle d'ouverture
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