Anonymous
Anonymous asked in 遊戲與休閒活動其他:遊戲與休閒活動 · 2 decades ago

uv係數?

那是什麼東西?為什麼常在賣雨傘的牌子上看到?

2 Answers

Rating
  • Anonymous
    2 decades ago
    Favorite Answer

    名詞解釋:

    UV 就是ultra violet的縮寫

    l UV radiation:紫外光,依波長又可分三種:UVA(320-400nm),UVB(280-320nm),UVC(190-280nm)

    l VIS(visible light):可見光,波長在400-700nm之間。

  • chichi
    Lv 5
    2 decades ago

    紫外線!雨傘會有這個標示這表示它是抗紫外線的唷!

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