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Launch angle : ウィキペディア英語版 | Launch angle In fiber optic telecommunications, the launch angle has the following meanings: *The angle, with respect to the normal, at which a light ray emerges from a surface. *The beam divergence at an emitting surface, such as that of a light-emitting diode (LED), laser, lens, prism, or optical fiber end face. *At an end face of an optical fiber, the angle between an input ray and the fiber axis. If the end face of the fiber is perpendicular to the fiber axis, the launch angle is equal to the angle of incidence. ==References==
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Launch angle」の詳細全文を読む
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