The eyes as we know is that part of the body which helps us see. The phenomenon of the working of the eye is very similar to that of a camera. The human visual is system (HVS) is as complicated as the working of a camera.
Whatever we see, is the result of the message sent through the eyes to the brain. The brain interprets the signals sent from eyes to it hence allowing us to see what is in front of us. To understand a camera, human eyes should be understood first. It would be really fascinating to know the similarities and dissimilarities of both the processes.
Vision is a continuous process of the human eye. But eye-lids act as shutters which creates a small time gap between two continuous visions. This small time gap is the shutter speed which is adjustable in case of camera but natural in case of human eye. According to researchers, an eye on an average has a shutter speed of around 1/50 of a second. Whereas, shutter-speed of a camera can vary from as less as 1/4000 of a second to as high as 2 seconds. Some cameras may even have an exposure time (shutter speed) of a few hours according to the need of the photographer.
APERTURE
Aperture of the eye or the lens decides the depth of field that is the area which remains in focus. The size of the hole of the aperture allows the required amount of light entering in the eye or the camera which results the focusing of a particular object of the whole view. The aperture of our eye is the black spot in the centre of the eye. It can vary from 1mm in the brightest light to 9mm at the night time. This is why this black spot shrinks when we move out in bright sun-shine and expands when we enter a dark-room.
Both cameras and eyes have lenses that can focus and will project an image ( upside down ) of what they are looking at, and the Pupil from an human eye can expand or contract to adjust the amount of light that enters, this is the same as the shutter of a camera.
Read more: What_are_the_similarities_between_a_camera_and_a_human_eye
A camera and a human eye both have a lense.
an eye is similar to a pinhole camera as light travels from a scene into the hole or eye and this produces the inage.
they are very similar because they both have lens and all the eye part and the difference is that one is artificial and one is natural. I got it from a text book pg 231 to pg 233.
think about it :)
iris
The emulsion on the film of a camera is where the image is focused and captured. In the eye that function is performed by the retina.
A camera eye is an eye with a crystalline lens that focuses light. It is found in squid, octopi, and vertebrates. This is similar to the lens arrangement of a camera.
the lens
focusing lens of the eye....
This part is called a Lens, on the camera and the glasses the are made of either optical glass or optical plastic, in the eye the lens in an organic material. Lens allow light to enter the camera, eye or glasses, and focuses that light on a surface such as the camera's film, the eye's retina, and the glasses wearer's eyes.
The part of the eye that is similar to a contact lens is the crystalline lens.
film
the iris
The retina is very similar to the film in a camera. Images come through the eye's lens and are focused on the retina. The retina then converts these images to electric signals and sends them by way of the optic nerve to the back lobe of the brain.
The retina is very similar to the film in a camera. Images come through the eye's lens and are focused on the retina. The retina then converts these images to electric signals and sends them by way of the optic nerve to the back lobe of the brain.
The focusing lens of the camera