Maxaa looga jeedaa erayga 'Milanello iftiinka'

Back ee 1873 caanka British jirka JC ah Maxwell horumariyo aragti guud sharaxaya geedi socodka ka dhacda ee beerta electromagnetic. Hirarka la soo bandhigay qaab perturbations Uubo. Ka dibna, ugu of uu afka baarkiisa xisaabaha xaliyay xaqiijiyay. Currently aragti Maxwell ku ballaarisey tan iyo beeraha naftooda ayaa loo arkaa ka barta of view of habka of physics galmada. Waxaa sidoo kale soo jeediyay in xitaa iftiinka arki karo wax kale ma ahayn mid ka mid ah noocyada kala duwan ee hirarka electromagnetic. In 2009 guuleeysteen waxaa la xaqiijiyay by physicists (qiyaasay by qayb ka magnetic of daadanayo iska Ifto Yuuna). Its farqiga ugu weyn ee ka soo noocyada kale ee hirarka electromagnetic ee Milanello.

Waxaan nahay oo dhan bartayba nuurka, arkaan falno iyo dhif waydiinaya su'aalo ah :. Waa maxay Milanello iftiinka, waxa uu yahay, iwm Xitaa ee Kitaabka Quduuska ah ayaa sheegay in Ilaah on maalinta koowaad ee abuurista abuuray iftiin. Si dadban, tani waxay muujinaysaa muhiimadda ay leedahay in si wax nool oo dhan. shucaaca Iftiinka muuqdaa waa dabeecadda electromagnetic, kaas oo waxaa laga yaabaa in si toos ah diiwaan isha. Si kastaba ha ahaatee, jirka ka mid ah diiwaanka badan spectrum oo dhan la ruxruxo, laakiin kaliya muddo go'an: soohdinta hoose waa qiyaastii 380 nm, 780 nm iyo tan sareba. Waa maxay sababta "oo ku saabsan"? Sababtoo ah qof kasta waa ka duwan yahay, iyo dareenka ee xadka kuwanu waa qiyaas. spectrum Full si ballaaran in nin la arki karo Milanello iftiinka waa kaliya 0.04%.

Haddii arki ku wadataa laba dhinac-cabbir, dhidibka siman waa raagay Milanello fudud nanomitir, halka dhidibka taagan muujinaysaa dareenka ee isha. Iyadoo la raacayo, bilowgii ruxruxo uu hoos u dhaco ee 780, iyo dhamaadka - si 380. qiimaha ugu sarreysa ayaa la gaadhin at 555 nm. In ka bareeg ah 10 nm - 380 nm waa UV shucaaca, iyo infrared 780 nm - 1 mm. Farqiga guud ahaan waa xaddiga lacagta ee ultraviolet, shucaaca la arki karo iyo infrared waa spectrum ah indhaha, inkasta oo ay tani micnaheedu ma aha in dhammaan iyaga isha oo qaawan arki kartaa. Milanello iftiinka - waa dabeecadda ugu muhiimsan ee qofka, sababtoo ah waa in ay iyada waxaan kala saari karaa midabo mahad. Inta badan kaliya ku qaadi midabo kala midab on peak la ruxruxo (555 nm) ah, laakiin at geesaha, ee meelaha midabada buluug iyo casaan, waa ka adag. Sidaa darteed, waxaa go'aan ka mid ah taagayo ah oo midabo dadka mararka qaarkood kala duwan, tan iyo dareen ee isha waa receptors kala duwan. Waxa xiiso leh, 555 nm ah - kala duwan oo doog ah, taas oo si fiican u garan. Ma kadis ah in cawska iyo caleenta cagaaran? By habka, waxaad ka arki kartaa qayb ka mid ah shucaaca infrared, markii si toos ah camera mobile phone (ama camera digital) si LED ee ka hawlgala gacanta fog ee qalabka guriga (TV, tuner, iwm).

Dhererka nuurka cas u dhiganta 700 nm, in uu yahay, ku dhowaad ka laayeen aad ee aagga la arki karo. Taas oo muujinaysa in ay shucaac 10 unugyada caadiga kala duwan waxaa lagu qaban doonaa by isha sidii hal unug ee cagaaran (555 nm) ah. Laakiin dhererka Milanello iftiin hurdiga ah ee u dhexeeya 560 nm in 590 nm, waa u dhaw in ay Milanello sarreysey, si khaladaadka ku jira midabo kala isha aadanaha waa yar yihiin.

Waxa intaa dheer in midabo kala duwan ee nolosha inta badan u leeyihiin in ay la caddaan macaamilo. Dhab ahaantii, spectrum ma aha caddaan. Waxaa la helay ku khalda saddex midabada aasaasiga ah. Waxaa la rumeysan yahay in haddii aad isu geeyo dhammaan toddobada midabada qaanso roobaadka ee adag isla, waxaa cad oo saafi ah ku soo jeedin doonaa. Isla mar ahaantaana, sida caadiga ah ugu yaraan mid ka mid ah ahaaday, kaas oo ku darayaa midka gaar ah. Waxaad u samayn karaan fudud iyo isku dhafka dhan saddex midabada - cas, buluug iyo cagaar. Jiritaanka screens telefishanka ku salaysan tuubooyinka ray cathode saddex electrodes (Red, Green, Blue), muujiyaan karaa barta cad u adeegtaa sida caddaynta tooska ah ee this.