Unverified80% confidenceTradeoffTime unknown
护眼台灯照度并非越亮越好：读写国AA级中心照度需≥500lux且照射范围广，但超过1000lux反光纸面反而刺眼疲劳
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80%
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Long-term
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Unverified护眼台灯认准国AA级照度标准（中心照度≥500lux且照度均匀度≥0.7），普通国A级仅要求300lux，读写距离下容易导致局部过暗形成明暗对比疲劳85% similarUnverified国家标准中，读写作业台灯AA级要求灯具中心照度≥500lx，AA级半径50cm处照度≥250lx，是护眼灯的硬指标83% similarUnverified亮度越高越'护眼'是误区：照度过高（＞1000lx）反而增加眩光和疲劳，理想是环境光与台灯亮度形成合理对比，建议开启环境背景光而非仅用台灯82% similarUnverified纸质书阅读灯选照度100-300lux即可，照射范围覆盖A4大小；照度过高（＞500lux）在暗环境下反而刺眼疲劳81% similarUnverified亮度越高越费电且长时间过亮反而刺眼，AA级照度已足够读写，盲目追求超高亮度（如1000lux以上无法调节）反而增加视觉负担81% similar
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