什么是低压钠灯(LPS)
低压钠灯(LPS)又称氧化钠灯(SOX),是一种在低压和低温条件下通过钠蒸气和氖或氩等惰性气体的混合物产生电流的照明灯具。LPS 灯的特点是其独特的黄橙色光输出,主要以 589.3 纳米的波长发射。这种 單色光 效率高,并具有较高的 發光效能这意味着每消耗单位电能,就能产生大量可见光。
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LPS 灯以使用寿命长而著称,有些灯的使用寿命长达 18,000 小时。这使它们非常适合维护和更换成本较高的应用。不过,它们也有一些局限性。LPS 灯的预热时间相对较慢,需要几分钟才能达到全亮度。此外,它们的单色光输出会使人难以准确感知颜色,因此不适合零售店或美术馆等需要显色性的应用。
就能效而言,LPS 灯能高效地将电能转化为可见光。它们具有每瓦约 150 流明的高能效,是目前最高效的照明光源之一。然而,由于其特定的色彩输出和显色性限制,它们并不适合所有照明应用。
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