腕表的夜光功能是怎麽實現的？

夜光表在晚上實力爆棚，甚至在伸手不見五指的地方，它依然能夠毫不費力地讀取時間，不但方便，也非常神奇。

之所以能做到這壹點，是因為夜光表往往在指針和時標上塗上了夜光材質。目前在高級腕表中應用最普遍的壹種夜光材質，就是SuperlumiNova，它沒有輻射，能夠持久地發光。

這種材料屬於蓄光型，通俗地說，這種材料本身並不會發光，而是要先經過光照，等到“吃飽”了光線之後，才會大展身手，在黑暗的地方帶來清晰的顯示效果。所以，有些品牌為了顯示自己的夜光效果，特意把腕表先在燈光下照壹照，讓它“酒足飯飽”。

當然還有壹種是自體發光，也就是說，不需要外在光線的照射，自己本身就會發光。比如波爾（Ball）等品牌，采用的就是壹種自體發光的微型氣燈，相當於在指針，時標等處裝了壹個個“小燈泡”，波爾的夜光有時候五顏六色的，很漂亮。

如果需要購買夜光表，親民品牌裏面，有魯美諾斯（Luminox），中端品牌有之前提到的波爾，高端品牌裏面，寶珀五十噚、勞力士（Rolex），沛納海（Panerai）等都不錯。勞力士現在使用的夜光，通常為Chromalight，在夜晚會發出獨特的藍光，比上面提到的SuperlumiNova還要亮，而沛納海可以說是最早做夜光表的品牌，無論外觀造型還是夜光，都非常給力。
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