发布时间:2025-01-28 00:13:46
看您的装修风格,家庭照明选择LED一般要注意几个问题
一、色温,不同色温营造的气氛不同,比如3000K的看起来很温暖,4000K的比较中性,6000K的会显得很现代,6000以上的就比较冷了,家庭照明建议使用5500K以内的色温,因为LED存在蓝光伤害,色温太高蓝色光谱就越多,所以尽量选择色温低于5500K的,尤其是家里有小孩的情况。
二、显色指数,指的是灯光对色彩还原的能力,一般照明最好选择Ra>80以上的,有条件的话当然越高越好。
如图所示将一个重物用两根等长的细绳oaob悬挂在半圆形的架子上b点固定不动悬点a由位置c向位置d移
2025-01-28 00:13:46 2025-01-28 00:13:46 2025-01-28 00:13:46 2025-01-28 00:13:46 2025-01-28 00:13:46 2025-01-28 00:13:46 2025-01-28 00:13:46 2025-01-28 00:13:46 2025-01-28 00:13:46 2025-01-28 00:13:46 2025-01-28 00:13:46 2025-01-28 00:13:46 2025-01-28 00:13:46 2025-01-28 00:13:46 2025-01-28 00:13:46 2025-01-28 00:13:46 2025-01-28 00:13:46 2025-01-28 00:13:46 2025-01-28 00:13:46 2025-01-28 00:13:46 2025-01-28 00:13:46 2025-01-28 00:13:46 2025-01-28 00:13:46 2025-01-28 00:13:46 2025-01-28 00:13:46 2025-01-28 00:13:46 2025-01-28 00:13:46 2025-01-28 00:13:46 2025-01-28 00:13:46 2025-01-28 00:13:46