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How a Color CRT TV Works

How a Color CRT TV Works. Beam of electrons are sent from the cathode/anode setup Directed beam sweeps the screen many times per second The eye sees it as continually changing picture.

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How a Color CRT TV Works

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  1. How a Color CRT TV Works • Beam of electrons are sent from the cathode/anode setup • Directed beam sweeps the screen many times per second • The eye sees it as continually changing picture • Each “dot” on the screen one of three types of phosphor – chemicals that emit red, green, or blue light when hit with an electron • These combine to make any possible color Diagrams and legends taken from: http://www.howstuffworks.com/tv.htm

  2. Close Up Pictures of CRT Screen Picture taken from www.dansdata.com/images/753df/closeup320.jpg Picture taken from content.answers.com/.../img/CDE/DOTPITCH.GIF Rectangular Grid Pattern Hexagon Screen Pattern Each of the screens has a repeating pattern of red, green, and blue phosphors that together can make any color.

  3. Spectra Taken from a CRT TV This data was taken from a Mitsubishi Diamond Plus 74SB-BK Computer Monitor

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