Fjernsyn




Fjernsynsapparat frå 1950-åra.




Flatskjermsfjernsyn til sals hos Elkjøp i 2006.


Eit fjernsyn, fjernsynsapparat eller TV (kort for televisjon) er eit elektronisk apparat som ved hjelp av ei VHF/UHF-antenne eller ein satellittmottakar tek imot radiobølgjer på ein viss frekvens og så omgjer dei til bilete og lyd. Fjernsyn har vore kommersielt tilgjengelege sidan 1930-åra, og er i dag vanleg å sjå i heimar over heile verda.


Det første halvmekaniske analoge fjernsynsystemet blei demonstrert i februar 1924 av skotten John Logie Baird. I 1927 sende han eit fjernsynssignal over telefonlinja frå London til Glasgow.



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  • Videoteknologi

    Spire Denne elektronikkartikkelen er ei spire. Du kan hjelpe Nynorsk Wikipedia gjennom å utvide han.



Autoritetsdata

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  • GND

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