Kanjani qapha CRT

Ngandlela-thile waphawuleka yisikhathi lapho emashalofini wanyamalala cishe ngokuphelele TV kanye nabaqaphi esekelwe cathode-ray ubuchwepheshe. Khumbula, lawa amadivayisi nzima ukuthi luthathe acishe abe yisigamu edeskini ikhompyutha. Manje ukushuba thukela idlula 10 cm, bese kuphela isibani ukukhanya. Akumangalisi ukuthi abaningi ngokujabula ngakhohlwa qapha CRT. Kodwa kwaba nhlanga zimuka nomoya! Nakuba, uma kuphela ngoba ngaphambi ngisho zakamuva ketshezi-crystal nozakwabo ezicini ezithile.

kanjani CRT Abaqaphi

Okokuqala, ake sokuqonda izifinyezo. Ngakho, igama elithi "CRT" libhekisela electron ugongolo noma, njengoba thina kubonisiwe ekuqaleni, tube cathode (kusukela English CRT -. Cathode Ray-Tube). Ngokuvamile, lapho igama elithi "tube" iningi labantu isilinda, imikhawulo eningeke udonga. Ngaphandle kweqiniso lokuthi ezinjalo ukuqapha CRT, kubalulekile ukusho ukuthi kuleli cala okokumelela kuyiphutha. Ngenxa ukuma tube kuwo ikude indiza cylindrical luqhubeke nganxanye. Lokhu ebusweni kufanekisela ingxenye yalokho ngaphambili ingilazi, omunye okuyinto akhiwa izithombe. Uhlangothi kwangaphakathi kwale ngxenye camera nge material ekhethekile - phosphor. sici laso eliyingqayizivele wukuthi uma lingena sikusiphi izinhlayiya icala kuso zabo energy kinetic ngendlela yemvelo iguqulwe ibe ukukhanya. Ngakho, qapha CRT yidivayisi lapho yokuntwela electron ngemishayo ngaphakathi silhouetted isithombe kwesikrini. Umuntu nje ubona-ke, sibonga ekushayweni we phosphor.

Ngakolunye uhlangothi umfuma ibekwe block electrode, ngokuthi inganono. Zakha ekusakazeni izinhlayiya.

Ngamanye amazwi, qapha CRT siqukethe ingilazi tube-isibhamu electrode kanye wesifunda control.

Umgomo we operation

Njengoba ayaziwa ukuxuba isilinganiso athile ezintathu imibala eyinhloko: oluhlaza, obomvu noluhlaza okwesibhakabhaka - ungathola bonke abanye, kuhlanganise shades. Ngabaqaphi umbala ebusweni bonke kwangaphakathi kwesikrini liqukethe Amaphikseli, evamile eziqoqiwe abangoziqu-zintathu (amabhlogo 3 izingcezu). Ngamunye wabo uyakwazi ukukhanyisa eminye imibala eyinhloko. Futhi electrode ezintathu, ngamunye okuyinto uqokomisa imigomo yabo "siqu". Ukuze ukukhanyisa ezithile wedlula nabo esikrinini, kungenzeka ukwakha isithombe umbala. Phela, lo kudivayisi ngombala omnyama nomhlophe isibhamu esisodwa kuphela.

Ukuze ulawule ukugeleza izinhlayiya esetshenziswa kuka kagesi kanye isiqondiso sokuqala motion is wadala, ngenxa umehluko ezingaba khona.

Njengoba ngobuchwepheshe nzima ukufeza, usebenzisa isinqumo ukunemba ekhethekile ugongolo ehlela phezu iphuzu lakhe - buso. ukukhuluma kuqhathaniswa, lena igridi perforated phakathi kwesikrini kanye nezibhamu. Kunezinhlobo ezahlukene buso. Ngokwengxenye bazi ukuthi banesibophezelo izici ukubonisa (ukuzwakala, ukuma-pixel amaphuzu).

Njengoba ngemva ukushaya kukhanya phosphor izinhlayiya incipha ngokushesha kakhulu, kudingeka bahlale ukudala kabusha isithombe. Bobabili static kanye ashukumisayo. Ngakho-ke imisebe ukudweba ngokuningiliziwe inqwaba isithombe izikhathi ngomzuzwana. Lona abadumile hertz Uhlaka ukuskena. Imvamisa ephakeme, kulokolokoza obunganakekile.

Okwamanje ukulungisa CRTs ukuze zisetshenziswe kamuva ohlelweni computer kungaba okungalungile, njengoba LCD ubuchwepheshe besimanje liyathembisa ngaphezulu. Ukwehluka - ukusetshenziswa ethize.