Unverified75% confidenceCautionTime unknown
落地大屏护眼灯不适合桌面空间小于60cm的书桌：大发光面需要足够高度和距离才能覆盖，桌面过小时光斑集中反而降低均匀度，此类场景选可调灯臂的座式灯更合适
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75%
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Long-term
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Unverified书桌深度不足40cm不建议买大灯头广域照明台灯，光线易溢出屏幕造成反光眩光，应选可调节灯头角度或立杆式设计92% similarUnverified灯头照射面积越大越均匀，但灯体越大占桌面空间；小书桌（宽＜80cm）选一字型宽幅灯头兼顾均匀度与占地，大书桌可选落地/悬臂式91% similarUnverified灯头照射范围越大越均匀但灯体越占空间，小书桌（宽＜80cm）选长条形灯头兼顾覆盖与占位，大书桌需可旋转灯臂91% similarUnverified照度均匀性（中心与边缘照度比）越高越护眼，但大发光面均匀设计会牺牲便携性和台面占用；小户型书桌选可折叠灯臂宽光型即可，无需追求超大导光板90% similarUnverified光源位置越低、灯头越大照度越均匀但占用桌面空间越大；小书桌选大面板可能遮挡视野，需在照度均匀性与桌面空间之间权衡90% similar
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