Tagged Questions
0
votes
0answers
25 views
What processes are responsible for focusing on an image only seen by one of the eyes?
When a person is spying from around a corner with only one eye, it's rather easy to ignore the other eye's image, since it's probably much darker, because one usually spies around a corner standing ...
0
votes
0answers
22 views
Perception of distant lights without glasses
I am fairly short-sighted and wear glasses pretty much all the time. Naively, I would expect that when I take my glasses off, the image I see should look very much the same as as a photograph that's ...
1
vote
1answer
30 views
Is there an optimal illumination level for human habitats/workplaces?
I know of melanopsin, a photo pigment in mammal eye that helps regulate circadian rhythms. It responds most strongly to blue spectrum light. There have been experiments that demonstrated that ...
2
votes
0answers
19 views
HSL Lightness vs Eye sensitivity
In a monochromatic spectrum, is the human eye equally able to distinguish between lighter colors just as it is in distinguishing between darker colors? I mean is there really a linear relationship ...
7
votes
2answers
102 views
Does every human eye see the same visible spectrum?
It is said that human eye can see light with wavelength approximately between 400nm and 700nm.
Are these upper and lower bounds same for every human? If not, what are the means and standard ...
6
votes
2answers
755 views
Which shades/hues of color are easiest to distinguish for humans?
I'm trying to represent data graphically and am using a variation of hue/lightness to distinguish one data point from the next. I would like to use a color that would allow me to convey most ...
7
votes
1answer
100 views
What causes light to be brighter in the corner of the eyes?
I have noticed when in a dark room light and color seem to be brighter and more intense in the corner of my eyes. For example the light that comes from my digital clock seems like a dark pink when I ...
10
votes
2answers
157 views
Can a color-deficient person be made to visualize the missing colors?
Hope this is within the scope of this site.
Color-deficient persons lack the cells in their retina needed for differentiating some (or all) colors.
However, the part of the brain that actually ...
37
votes
3answers
567 views
Is there a reason why human eyesight and plants make use of the same wavelength of light?
The accepted range for the wavelengths of light that the human eye can detect is roughly between 400nm and 700nm. Is it a co-incidence that these wavelengths are identical to those in the ...
