04-26-2012, 07:41 AM
[quote name='backcountryskier' timestamp='1335384354' post='17766']
I was wondering about this the other day.
Why does the human eye not have c/a? I tried looking out of the corner of my eye towards a high-contrast edge, and I couldn't see any.
The eye has a simple design. It does not have high refractive index materials, no positive-negative doublets, or anything like that.
Anyone have an idea?
[/quote]
Good question. As far as i know the human eye have
1. Different sensitivity on conrner - e.g. look at dark night straight and on perifery.
2. Human eye has two type of cells - one are color sensitivities another not. One was called cones another just forget the name /from biology class/
Greetings,
Miro
BTW: There is big percentage of people that are color blind. Even more - the men suffers more than women.
Just my thoughts.
I was wondering about this the other day.
Why does the human eye not have c/a? I tried looking out of the corner of my eye towards a high-contrast edge, and I couldn't see any.
The eye has a simple design. It does not have high refractive index materials, no positive-negative doublets, or anything like that.
Anyone have an idea?
[/quote]
Good question. As far as i know the human eye have
1. Different sensitivity on conrner - e.g. look at dark night straight and on perifery.
2. Human eye has two type of cells - one are color sensitivities another not. One was called cones another just forget the name /from biology class/
Greetings,
Miro
BTW: There is big percentage of people that are color blind. Even more - the men suffers more than women.
Just my thoughts.