不同调光方式LED照射下的人体非视觉效应
发布时间：2018-11-08 19:29
【摘要】：分别采用模拟调光和PWM调光方式实现LED光调节。采用生理参数法,以在校大学生为研究对象,选择3种色温(3 000,5 600,6 500 K)LED光源,在3种照度(300,500,800 lx)水平下,对8名(5男,3女)受测者在实验前后的脉搏和瞳孔进行测量。选择同样3种色温LED光源,分别采用两种调光方式添加蓝光(464nm,20 lx)实现300 lx的照明环境,对12名(8男,4女)受测者在实验前后的脉搏和瞳孔进行测量。结果表明:两种调光方式实现的LED光环境对人体脉搏变化率和瞳孔收缩率的影响均没有显著性差异;在测试照明环境中添加蓝光,可引起人体脉搏变化率和瞳孔收缩率增大,峰值处分别增加约6%和9%。
[Abstract]:Analog dimming and PWM dimming are used to realize LED light regulation respectively. Using physiological parameter method and taking college students as research objects, three kinds of color temperature (3 000 ~ 5 600 ~ 6 300500800 K) LED) light source were selected and 8 cases (5 males) were selected under three illuminance (300500800 lx) level. The pulse and pupil of the subjects were measured before and after the experiment. Using the same three color temperature LED light sources, the pulse and pupil of 12 subjects (8 males and 4 females) were measured before and after the experiment by adding blue light (464 nm ~ 20 lx) to realize the lighting environment of 300 lx. The results showed that there was no significant difference in the effect of LED light environment between the two dimming modes on the pulse rate and pupil contraction rate. Adding blue light to the test lighting environment can increase the pulse rate and pupil contraction rate, and increase the peak value by about 6% and 9%, respectively.
【作者单位】： 华南理工大学物理与光电学院;
【基金】：广东省科技计划(2015A010103005)资助项目
【分类号】：TM923.34;R339.1
[Abstract]:Analog dimming and PWM dimming are used to realize LED light regulation respectively. Using physiological parameter method and taking college students as research objects, three kinds of color temperature (3 000 ~ 5 600 ~ 6 300500800 K) LED) light source were selected and 8 cases (5 males) were selected under three illuminance (300500800 lx) level. The pulse and pupil of the subjects were measured before and after the experiment. Using the same three color temperature LED light sources, the pulse and pupil of 12 subjects (8 males and 4 females) were measured before and after the experiment by adding blue light (464 nm ~ 20 lx) to realize the lighting environment of 300 lx. The results showed that there was no significant difference in the effect of LED light environment between the two dimming modes on the pulse rate and pupil contraction rate. Adding blue light to the test lighting environment can increase the pulse rate and pupil contraction rate, and increase the peak value by about 6% and 9%, respectively.
【作者单位】： 华南理工大学物理与光电学院;
【基金】：广东省科技计划(2015A010103005)资助项目
【分类号】：TM923.34;R339.1
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