Unverified75% confidenceTradeoffTime unknown
亮度与护眼存在权衡：高显色高护眼的LED光效偏低，同瓦数下比廉价灯珠暗，追求护眼需接受选更高功率(建议阅读灯≥6W/400lm)而非最省电型号
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Unverified照度均匀度（最低/平均照度比）越高越好，专业护眼灯用透镜阵列或导光板实现均匀分布；单颗大功率LED裸露光源亮度高但中心过亮边缘暗，长期看书导致瞳孔频繁调节疲劳87% similarUnverified亮度与护眼存在权衡：并非越亮越护眼，桌面照度超过750lx反而增加眩光负担，理想是可调至500-750lx区间，带自动感光调节的能随环境补光更省眼86% 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86% similarUnverified照度均匀性看『中心照度与边缘照度比值』，优质灯≤3:1（越接近1越均匀），比值过大会造成瞳孔频繁调节疲劳；单点式LED灯珠比长条导光板均匀性差85% similarUnverified前光灯珠数量与冷暖光调节影响护眼体验：高端机应具备≥16颗灯珠+冷暖双色温调节，单色温或灯珠少于8颗易出现亮度不均和阴阳屏85% similar
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