Kuyini ukukhanya okunakekela amehlo?

Okubizwa ngokuthi isibani sokuvikela iso ukwenza ukukhanya okujwayelekile okuphansi kube ukukhanya kwefrikhwensi ephezulu. Ngokuvamile, ibaneka izikhathi eziyizinkulungwane noma izikhathi ezingamashumi ezinkulungwane ngomzuzwana. Ngalesi sikhathi, ijubane lokukhanyisa lidlula ijubane lokusabela kwemizwa yeso lomuntu. Ngokutadisha isikhathi eside kanye nehhovisi ngaphansi kwalolu hlobo lokukhanya, abantu bazozwa ukuthi amehlo abo akhululekile futhi kulula ukuvikela amehlo abo. Okubizwa ngokuthi i-stroboscopic inqubo yokukhanya okushintshayo kusuka kokukhanyayo kuya kokumnyama bese kusuka kokumnyama kuya kokukhanyayo, okungukuthi, ukuguqulwa kwemvamisa yamanje. Amalambu ajwayelekile okuvikela amehlo ngokuyisisekelo ahlukaniswe abe izinhlobo ezinhlanu: Amalambu okuqala aphezulu okuvikela amehlo amalambu ajwayelekile okuvikela amehlo. Isebenzisa i-ballast ye-high-frequency ukuze ikhulise imvamisa yokucwayiza ukusuka ezikhathini ezingu-50 ngomzuzwana, njengendawo evamile, izikhathi ezingu-100 ngomzuzwana, ophinda kabili ifrikhwensi yegridi. Iso lomuntu lingakwazi ukubona ushintsho ngaphakathi kwe-30Hz, futhi ukukhanya kushintsha izikhathi eziyi-100 ngomzuzwana akubonakali ngokuphelele ngeso lomuntu, okufeza injongo yokuvikela iso. Ngesikhathi esifanayo inomphumela ovikelayo emehlweni. Ngenxa yamehlo abantu, abafundi bayashwabana lapho ukukhanya kunamandla; lapho ukukhanya kubuthakathaka, abafundi bayanwebeka. Ngakho-ke, amehlo abantu abafunda noma abafunda ngokuqondile ngezibani ezivamile azokhathala ngemva kwesikhathi eside. Ukufeza inhloso yokuvikela iso. Kodwa imisebe ye-electromagnetic yezibani ezivamile ze-high-frequency izophinde ikhule, okungukuthi, imisebe ye-electromagnetic yezibani ze-high-frequency mikhulu kunaleyo yezibani ezijwayelekile ze-incandescent namalambu e-fluorescent, futhi ingase ibangele olunye uhlobo lomonakalo. Wonke umuntu udinga ukunaka lapho ethenga izibani zokuvikela amehlo.

Isibani sesibili sokuvikela iso se-electronic high-frequency high siphinde sisebenzisa ama-ballasts e-electronic-frequency aphezulu. Futhi iyinguqulo ethuthukisiwe yohlobo lokuqala lwesibani sokuvikela iso. Umklamo ucabangela umthelela wokubonakala kokukhanya emehlweni omuntu futhi wengeza isihlungi. Ingakwazi ukwandisa ngempumelelo ukukhanya okudingekayo futhi inciphise ukukhanya okungadingekile.

Isibani sesithathu sokushisa sikagesi sohlobo lokuvikela iso Lesi sibani sokuvikela iso sisebenzisa isimiso sokushisisa okuqhubekayo ngentambo yokushisa yesibani esivamile se-incandescent. Umklamo usebenzisa i-filament enamandla amakhulu okushisa ukuze unikeze ngokuqhubekayo ukushisa nokukhanya, ukufeza injongo yokuvikela iso. Iningi lala malambu okuvikela amehlo linamagiya amabili, aqale avule igiya eliphansi ukuze ushisise umcu, bese uvula izinga eliphezulu, bese ulisebenzise ngokujwayelekile. Ngoba lapho isibani sikhanyisa okokuqala, i-filament ayishisi kakhulu, i-current izoba nkulu ngokuqhathaniswa, i-filament kulula ukuyishisa, futhi ukuphila kwe-bulb akukude. Uma ukhetha lolu hlobo lwesibani sokuvikela iso,ungabona intuitively:Ngemva kokukhanyisa ukukhanya, ukukhanya kukhanya kancane kancane, okungukuthi, kunamandla amakhulu okushisa; iyakhanyisa uma ivuliwe, futhi inamandla amancane okushisa.

Isibani sesine esiphuthumayo sokukhanyisa isibani sokuvikela iso Lolu hlobo lwesibani sokuvikela iso ukukhanya okujwayelekile kwezimo eziphuthumayo. Usebenzisa amabhethri okugcina, ngokuvamile asetshenziselwa ukukhanyisa izimo eziphuthumayo. Isibani sinesikhathi esifushane sokuphila, ukusebenza kahle kokukhanya okuphansi, nokunye ukushiyeka. Manje ubuchwepheshe obunjalo busetshenziselwa isibani sedesksi sokuvikela amehlo, i-alternating current igcinwa ngebhethri, bese ikhanyiswa. Ngenxa yokukhishwa okungazinzile kwamandla okugcina amanje namandla angazinzile alolu hlobo lwesibani sokuvikela iso, izokhiqiza i-flicker nemisebe, engafaneleki endaweni esetshenziswa kakhulu. Akunconywa ukusebenzisa uma kunogesi.

Isibani sesihlanu sokuvikela iso le-DC. Isibani sokuvikela amehlo se-DC sisebenzisa i-ballast ye-DC ukuze siqale siguqule amandla e-AC abe amandla e-DC ane-voltage ezinzile namanje. Lapho amandla e-DC esetshenziselwa ukukhanyisa isibani, isibani ngeke silokoze uma sikhanya, futhi alilokothi ngempela, Futhi ukukhanya okukhishwayo ngesikhathi sokusetshenziswa kuyaqhubeka nokukhanya okufanayo njengokukhanya kwemvelo, kugqame kakhulu, kodwa akubenyezi. nhlobo, ithambile kakhulu, ekhulula kakhulu ukubona. ; Ngenxa yokusetshenziswa kobuchwepheshe be-DC, akukho kuguquguquka, kuyilapho kugwema imisebe kagesi kanye nokungcoliswa kazibuthe okubangelwa i-oscillation ephezulu ye-high-frequency electronic ballast. Kodwa okubi kakhulu kwalolu hlobo ukuthi inqubo inzima futhi izindleko ziphezulu. Isibani sesithupha sokuvikela iso le-LED


Isikhathi sokuthumela: Jul-09-2021