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Objective lens for a free-space photonic switching system
Objective lens for a free-space photonic switching system
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机译:用于自由空间光子交换系统的物镜
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摘要
An objective lens for a free-space photonic switching system is disclosed. The objective lens is utilized to change a collimated array of beams into an array of spots which will focus on the array of spatial light modulating elements (S-SEEDs, for example). The requirements for the lens (low f-number, field of view, etc.), result in a lens which includes an external stop, positive doublet, a positive (e.g., plano-convex) lens and a negative (e.g., field flattener) lens, the latter pair of lenses being separated by a predetermined distance d.
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机译:公开了一种用于自由空间光子交换系统的物镜。物镜用于将准直的光束阵列更改为光斑阵列,这些光斑将聚焦在空间光调制元件(例如S-SEED)阵列上。镜头的要求(低f值,视场等)导致镜头具有外部光阑,正双合透镜,正(例如平凸)透镜和负(例如场平整)透镜)镜头,后一对镜头相距预定距离 d U>。
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