照明过多不但易造成眼睛疲劳，还会对人体健康造成不利影响。室内照明缺乏阳光中的紫外线，使人对钙的吸收量大大减少。医学界人士发现，现代因缺钙引起的老年性骨折、婴幼儿佝偻病发生率日益增加，很可能与自然阳光照射减少，电灯照射时间延长有关。长期使用室内照明，无形中 Too much lighting is not only easy to cause eye fatigue, but also adversely affect human health. The lack of sunlight in the interior lighting UV, people greatly reduce the absorption of calcium. Medical professionals have found that the modern due to calcium deficiency caused by senile fractures, infant rickets, an increasing incidence of the disease, it is likely to reduce the natural exposure to sunlight, lamp irradiation time is extended. Long-term use of indoor lighting, virtually