The Similarities and Differences Between the Human Eye ans a Camera by Ariana Bello on Prezi
Dear Sir, What is the similarities and the differences between human eye and the camera? In the camera, the lens focuses the light onto a piece of film. Cameras are often described as "mechanical eyes," because there are many similarities between how they work and the anatomy and function. Many people ask their eye doctors in Miami about the main differences and similarities between cameras and the human eye. In fact, there are.
When the iris widens in darker situations, the pupil becomes larger, so it can take in more light.
Comparison of the Human Eye to a Camera | Sciencing
The same effect happens with the aperture; larger lower aperture values let in more light than a small higher aperture value. The lens opening is the pupil; the smaller the opening, the less light let in.
Sciencing Video Vault Focus in Eyes and Cameras Both the eye and camera have the ability to focus on one single object and blur the rest, whether in the foreground shallow depth of field or off at a distance. Likewise, the eye can focus on a larger image, just as a camera greater depth of field can focus and capture a large scape.
Scope and Field of View As the eye, the camera has a limited scope to take in what is around it. The curvature of the eye and the lens allow for both to take in what is not directly in front of it.
This is done by changing the shape of the lens; a muscle known as the ciliary muscle does this job. Correcting Nearsightedness A person who is nearsighted can only create sharp images of close objects.
Objects that are further away look fuzzy because the eye brings them in to focus at a point in front of the retina. To correct for this a lens can be placed in front of the eye. What kind of lens is necessary? A converging lens A diverging lens We need a diverging lens to diverge the light rays just enough so that when the rays are converged by the eye they converge on the retina, creating a focused image.
Correcting Farsightedness A farsighted person can only create clear images of objects that are far away.
For more information, you can check out on the web. They have LOTS of good information on all sorts of things about both the eye and the camera. The best cameras in the market are around 10 megapixels.
Comparing a Human Eye to a Camera | Gould Vision Miami Beach
I have always wanted to know how many megapixels our eyes would be! I don't know if this is a stupid question, but it's one that really gets me thinking. Can- this is not a stupid question by any means! What I can give is a technique to get an approximate answer. How big is it?
If I roll back to about a meter away, I can barely resolve the smallest features pictured on the screen: So at a distance of a meter, a screen with an area of around 0. So I guess that there are about 10 M to M pixels in the total field of view, densely spaced in the middle and sparser in the periphery.
Comparing a Human Eye to a Camera
I hope that this argument is useful to you, and that you can follow up with someone who actually knows something to get the numbers right. Apparently one of the main limits is not the eye itself but rather the density of brain cells devoted to various parts of the visual field.
How many megapixels our eyes would be!