攀岩墙是垂直照明面：照度设计按水平面做就会整墙偏暗，岩点阴影处理不好还会让岩点看起来'假'，抓握判断失真。
岩壁垂直照度≥300lx、仰角区（屋檐段）350lx；灯具从墙前上方45度投向墙面消除岩点死影；保护员站位区300lx并防眩，观察坠落轨迹不受干扰。
我们的攀岩馆照明按'岩壁为墙、灯为太阳'的模拟日光逻辑设计，定线员反映岩点立体感明显好于旧灯。
Climbing walls are vertical surfaces: designing for horizontal illuminance leaves the whole wall dim, and poor hold shadowing makes grips look artificial, distorting judgement.
Wall vertical illuminance ≥300 lx, roof sections 350 lx; luminaires cast from front-above at 45° to kill hold shadows; belayer zones 300 lx with glare control for undisturbed fall tracking.
We design climbing walls as 'wall-as-cliff, light-as-sun' simulated daylight — route setters report markedly better hold definition than under the old lamps.
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