ArtsAutosBooksBusinessEducationEntertainmentFamilyFashionFoodGamesGenderHealthHolidaysHomeHubPagesPersonal FinancePetsPoliticsReligionSportsTechnologyTravel

Similarities between the Camera and the Eye

Updated on June 19, 2013
Source

A camera and the human eye have much in common, far more than just the ability to capture images. Cameras are made in ways that are similar to the ways in which an eye functions giving then the name, robotic eye. It starts off with the basic, visual features. A camera and an eye are both capable of viewing different tones of grey and various shades of other colours. They are also both capable of seeing near and far, judging the size of different things, registering depth and capturing movement. The only drawback the human eye has is that it is only capable of seeing images in visible light. Special, infrared cameras can capture images far beyond what the eye can do. This is evident in x-rays, stop motion and night-vision cameras. Cameras can also view objects at extreme distances such as planets. They can also zoom in down to the smallest of thing so that they can capture images of particles.

When light passes through the lens and cornea, it is focused in the back portion of the eye. This light beam is shone on the patch of ‘photoreceptors’ which make up the retina. The retina changes the physical light energy into electrical pulses. This energy is then transmitted through the back of your eyes and into the brain. The brain then deciphers the electrical impulses it has been sent and pieces pictures of what we are seeing, together. As described below, all of these parts of the eye have some relation with a camera, and this is how cameras are able to produce and capture images.

The cornea of the eye is the frontal, transparent surface of the eye; it is very similar to the lens of a camera. They both sit and the front of the body, are both transparent and have a spherical curvature. The purpose of this spherical curvature is to allow the cornea and the lens view the left and right, not just straight ahead.

Another similarity they possess is with the eye’s iris and the camera’s aperture. The size of a camera’s aperture refers to the amount of light is let into the camera to be reflected onto the sensor, or in old days, film. The iris performs a similar job, letting different amounts of light in depending on the size of the pupil. The size of the aperture and iris both change depending on lighting conditions.

Both the eye and the camera are able to focus on single objects whilst blurring the rest, regardless of if this object is in the foreground or the background. Both can focus on large images and capture large scapes. They also both have their shared disadvantages. The have limited an ability to capture a large scope, but a camera has a function which allows it to change the focal lens, but the eye does not have this ability. The retina of the eye and the film of a camera perform similar functions. While the eyes retina collects reflected light from the surrounding environment the film or digital sensors in a camera do the same thing. Both cameras and our eyes receive images upside down. However these faults are corrected by the brain (eye) and when the picture is digitally formatted or processed (camera).

As you can see, the functioning of a camera and the eye is very similar. They both are complicated and have similarities such as receiving images upside down, functions that alter the light entering the eye/camera and most importantly, the ability to capture images.

Comments

    0 of 8192 characters used
    Post Comment

    • profile image

      Write the summary also plzzz 

      7 months ago

      Write the summary also plzzz

    • profile image

      Conjay 

      8 months ago

      thanks

    • profile image

      Hafsa 

      14 months ago

      it is very informative for me AMAZING!

    • profile image

      hamza 

      14 months ago

      its amazing!

    • profile image

      nigga please 

      2 years ago

      w3w..............

    • profile image

      ssssssssssssssssss 

      2 years ago

      wowwwwwwwwwwwwwwwwwwww............

    • profile image

      I make u say nigga 

      3 years ago

      this is Messed up mayyn

    • profile image

      :-) 

      3 years ago

      Hehe

    • profile image

      jajajaja 

      4 years ago

      wow amazing ,,,,,,,,, 02 @26

    • profile image

      yhfghghgg 

      4 years ago

      jgk

    working

    This website uses cookies

    As a user in the EEA, your approval is needed on a few things. To provide a better website experience, hubpages.com uses cookies (and other similar technologies) and may collect, process, and share personal data. Please choose which areas of our service you consent to our doing so.

    For more information on managing or withdrawing consents and how we handle data, visit our Privacy Policy at: https://hubpages.com/privacy-policy#gdpr

    Show Details
    Necessary
    HubPages Device IDThis is used to identify particular browsers or devices when the access the service, and is used for security reasons.
    LoginThis is necessary to sign in to the HubPages Service.
    Google RecaptchaThis is used to prevent bots and spam. (Privacy Policy)
    AkismetThis is used to detect comment spam. (Privacy Policy)
    HubPages Google AnalyticsThis is used to provide data on traffic to our website, all personally identifyable data is anonymized. (Privacy Policy)
    HubPages Traffic PixelThis is used to collect data on traffic to articles and other pages on our site. Unless you are signed in to a HubPages account, all personally identifiable information is anonymized.
    Amazon Web ServicesThis is a cloud services platform that we used to host our service. (Privacy Policy)
    CloudflareThis is a cloud CDN service that we use to efficiently deliver files required for our service to operate such as javascript, cascading style sheets, images, and videos. (Privacy Policy)
    Google Hosted LibrariesJavascript software libraries such as jQuery are loaded at endpoints on the googleapis.com or gstatic.com domains, for performance and efficiency reasons. (Privacy Policy)
    Features
    Google Custom SearchThis is feature allows you to search the site. (Privacy Policy)
    Google MapsSome articles have Google Maps embedded in them. (Privacy Policy)
    Google ChartsThis is used to display charts and graphs on articles and the author center. (Privacy Policy)
    Google AdSense Host APIThis service allows you to sign up for or associate a Google AdSense account with HubPages, so that you can earn money from ads on your articles. No data is shared unless you engage with this feature. (Privacy Policy)
    Google YouTubeSome articles have YouTube videos embedded in them. (Privacy Policy)
    VimeoSome articles have Vimeo videos embedded in them. (Privacy Policy)
    PaypalThis is used for a registered author who enrolls in the HubPages Earnings program and requests to be paid via PayPal. No data is shared with Paypal unless you engage with this feature. (Privacy Policy)
    Facebook LoginYou can use this to streamline signing up for, or signing in to your Hubpages account. No data is shared with Facebook unless you engage with this feature. (Privacy Policy)
    MavenThis supports the Maven widget and search functionality. (Privacy Policy)
    Marketing
    Google AdSenseThis is an ad network. (Privacy Policy)
    Google DoubleClickGoogle provides ad serving technology and runs an ad network. (Privacy Policy)
    Index ExchangeThis is an ad network. (Privacy Policy)
    SovrnThis is an ad network. (Privacy Policy)
    Facebook AdsThis is an ad network. (Privacy Policy)
    Amazon Unified Ad MarketplaceThis is an ad network. (Privacy Policy)
    AppNexusThis is an ad network. (Privacy Policy)
    OpenxThis is an ad network. (Privacy Policy)
    Rubicon ProjectThis is an ad network. (Privacy Policy)
    TripleLiftThis is an ad network. (Privacy Policy)
    Say MediaWe partner with Say Media to deliver ad campaigns on our sites. (Privacy Policy)
    Remarketing PixelsWe may use remarketing pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to advertise the HubPages Service to people that have visited our sites.
    Conversion Tracking PixelsWe may use conversion tracking pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to identify when an advertisement has successfully resulted in the desired action, such as signing up for the HubPages Service or publishing an article on the HubPages Service.
    Statistics
    Author Google AnalyticsThis is used to provide traffic data and reports to the authors of articles on the HubPages Service. (Privacy Policy)
    ComscoreComScore is a media measurement and analytics company providing marketing data and analytics to enterprises, media and advertising agencies, and publishers. Non-consent will result in ComScore only processing obfuscated personal data. (Privacy Policy)
    Amazon Tracking PixelSome articles display amazon products as part of the Amazon Affiliate program, this pixel provides traffic statistics for those products (Privacy Policy)