1.The television camera is a device that employs light-sensitive image sensors to convert an optical image into a sequence of electrical signals in other words, to generate the primary components of the picture signal.
2.Television camera made out of a single light sensitive element does not prove to be effective as these sensors only receives light from a point in a image.
3.This type of video sensor has extremely poor sensitivity and needs large amount of time to make a picture.
4.Present day video pickup devices use an integrating approach and it increases the sensitivity thousands of times.
5.In integration approach the image is optically focused on a two-dimensional surface of photosensitive material which is able to collect all the light from all points of the image all the time.
6.The charge is then converted into a voltage by a separate process which scans the photosensitive surface.
2.Television camera made out of a single light sensitive element does not prove to be effective as these sensors only receives light from a point in a image.
3.This type of video sensor has extremely poor sensitivity and needs large amount of time to make a picture.
4.Present day video pickup devices use an integrating approach and it increases the sensitivity thousands of times.
5.In integration approach the image is optically focused on a two-dimensional surface of photosensitive material which is able to collect all the light from all points of the image all the time.
6.The charge is then converted into a voltage by a separate process which scans the photosensitive surface.
Cannot understand anything
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