养老照明核心是' Aging Eye'：老年人晶状体透光率下降，需要2-3倍照度才能达到年轻人同样的视觉感受，但太亮又刺眼。
活动区200-300lx（普通标准的1.5倍）、夜间地脚引导灯≤10lx不破坏褪黑素分泌；全区域防眩UGR≤19且避免地面反光（老年人跌倒的最大诱因是眩光误判）。
我们的养老机构方案按'昼夜节律照明'设计：白天5000K提振清醒、晚间2700K助眠，护理员反映老人夜间躁动明显减少。
Care-home lighting revolves around the aging eye: crystalline-lens yellowing demands 2-3× the illuminance for equal perception, yet glare tolerance drops at the same time.
Activity zones 200-300 lx (1.5× standard), night guide-lights ≤10 lx preserving melatonin; overall UGR≤19 with anti-glare floors — misjudged glare is the top fall trigger for elders.
Our care-home schemes follow circadian design: 5000K by day for alertness, 2700K by evening for sleep — carers report visibly reduced night-time agitation.
— 上海曦韵照明｜Shanghai Xiyun Lighting —
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