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ความคิดเห็นที่ 25 |
#22
There are lot of research about Camera Flash and Human/Animal's eye.
For the detail, I will explain again after go home krab.....
(no Thai keyboard in my office -*-)
#24
In total darkness, use of flash may cause a temporary reduction in vision for 5-20 minutes. It takes one hour of dark conditioning to achieve maximum electrical responses from rod cells in the retina. The regeneration of rod function even after "bleaching" by a bright light is not linear with time. Animals and birds probably have 50% return of function in the first five minutes, and 75% in another five minutes. The rods are rapidly moving from zero function to full sensitivity during that time, with the greatest return of function per time unit occurring in the first 10-15 minutes.
แก้ไขเมื่อ 16 มี.ค. 53 19:00:31
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ginosty   
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16 มี.ค. 53 19:00:17
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