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一般反射式濾藍光片,一般都一層電鍍膜,故僅能濾除10%左右之藍光(平均濾藍光率),但透視率95%。濾藍光率約10%過低 | 一般吸收式濾藍光片吸收30%—50—%(平均濾藍光率)藍光,但透視率僅60%—70%,透視率過低,會造成或加深近視眼。透視率60%—70%過低 | PARKS 濾藍光片 PARKS 濾藍光片,可有效過濾強藍光60%~90%。透視率、濾藍光率變高,是濾藍光眼鏡的最佳選擇。濾強藍光率約60%380-460mm透視率約93% |
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波長範圍 | 平均阻隔率 | 平均透視率 |
280~380nm 紫外線 |
100% | 0.00% |
380~470nm 強藍光 |
57.89% | 42.11% |
470~500nm 弱藍光 |
17.42% | 82.58% |
500~780nm | 5.56% | 94.44% |