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平凹柱面透鏡由一個平面一個凹柱面組成,其焦距為負,常用于將平行或發(fā)散光束聚集到線上或改變像的寬高比。
Items 26-33 of 33
直徑:20.0x20.0mm;焦距:-150mm
直徑:20.0x20.0mm;焦距:-100mm
直徑:20.0x20.0mm;焦距:-75mm
直徑:20.0x20.0mm;焦距:-50mm
直徑:20.0x10.0mm;焦距:-25mm
直徑:20.0x10.0mm;焦距:-12.7mm
直徑:10.0x10.0mm;焦距:-25mm
直徑:10.0x10.0mm;焦距:-12.7mm