Kubwerera mu nthawi: ndiponso mmene TV yoyamba

Kuyambira kalekale, anthu akhala akuyesetsa kugonjetsa tione ataliatali. Chikhumbo iwo amaoneka amasimbira ndi nthano. Pali nkhani zambiri kalirole matsenga, zitunda zathyathyathya, ndi zina zamatsenga Fairy njira kufala fano. Koma kuti maloto chenicheni sakanakhoza kale - pa chiyambi cha m'ma 20, ndi pamene TV choyamba - izo zinkawoneka ngati chozizwitsa. Modern TV kale amaona chinachake n'zodziŵika, ndipo palibe munthu akuganiza anatulukira zinasintha dziko.

TV: Kodi onse anayamba

Pogwira woyamba ongolankhula ndi othandiza kafukufuku pa nkhani ya kanema anayamba m'zaka 19 mochedwa. Mu 1880, asayansi - American E. Sawyer ndi France Moris Leblan, anapereka mfundo za machitidwe a pa TV, koma kutsirizitsa ake ndi injiniya German wotchedwa Paulo Nipkow, amene pambuyo setifiketi njira imeneyi. mfundo zake zofunika ndi izi:

lililonse mchitidwe chithunzi mwamsanga aone ndi sequentially, mzere ndi mzere ndi chimango ndi chimango opatsirana. chipangizo, Nipkow chimbale mutu, ankawoneka ngati chimbale onsewo ndi awiri a masentimita 50, zimene zakhala kuika mabowo. Image chindodo anachita ndi mtengo kuunika, ndi kufala wotsatira wa chizindikiro anachita mu chopatsilira wa. TV yoyamba anali okonzeka ndi chimbale onsewo ndi mabowo omwe imakhala kuseri kwa nyali Neon, koma m'kati kulingalira zinachitikadi kuti iwowo. Ndi dongosolo chithunzi yosavuta anali zimenezi pa TV. Icho chinali TV koyamba mu dziko, zochokera kapangidwe kunama zimango, chotero kufala kwa chithunzi khalidwe sikunali kotheka. Pa nkhani imeneyi, mawotchi TV waika inatenga yochepa nthawi.

Pamene woyamba TV cathode ray ofotokoza

Mu 1888, chifukwa cha German sayansi Genrihu Gertsu, dziko atamva zotsatira photoelectric. Scientist anapeza kuti kuwala amakhudza magetsi, koma sanathe angafotokoze ndi kuulula chikhalidwe cha chodabwitsa lapansi. Ndipo kokha mu 1905 kunali kotheka kuti Albertu Eynshteynu. Mu 1879, English wasayansi Uilyam Kruks analenga cathode-ray chubu ndipo anatsegula nkhani - ndi phosphors kuwala pamene amachitiridwa cheza cha cathode. Anayamba nthawi ya mawailesi akanema cathode ray, umene kenako kufalitsa padziko lonse. Mu 1936, pamene TV yoyamba zamagetsi, ndi kafukufuku American zasayansi walunjika RCA Russian wasayansi Zworykin, kotero amaona tate wa TV makono. Mu 1939, RCA anasonyeza woyamba TV zida kwa kuŵeta, lotchedwa RCS TT-5. Pamene TV koyamba, iye anali zikuluzikulu ndiponso zolemera matabwa bokosi, zida ndi kokha TV 5 inchi. Ena nthawi malostrochnye (mawotchi) dongosolo TV coexisted ndi zamagetsi, koma kumapeto kwa makumi anai zaka za m'ma 20 iwo kwathunthu m'malo mwa zipangizo zamagetsi.