I-Optical Coating

I-Optical Coating

I-optical coating ungqimba oluncane noma izendlalelo zezinto ezifakwe ku-elementi yokubona, njengelensi noma isibuko, eshintsha indlela i-optical element ebonisa ngayo futhi idlulise ukukhanya.Olunye uhlobo lwe-optical coating i-anti-reflective coating, enciphisa ukubonakala okungafuneki okuvela endaweni, okuvame ukusetshenziswa ezingilazini zamehlo namalensi ekhamera.Olunye uhlobo ulwelwesi olukhanyayo kakhulu, olungasetshenziselwa ukukhiqiza izibuko ezibonisa okungaphezu kuka-99.99% wokukhanya.Izembatho ezibonakalayo eziyinkimbinkimbi kakhulu ezibonisa ukubukeka okuphezulu kumaza wamaza athile kanye nokungabonisi ukukhanya kumabanga amade avumela ukukhiqizwa kwezihlungi zefilimu elincane le-dichroic.

Uhlobo Lokumboza

I-Reflection vs. Wavelength Curves at Normal Incidence for Aluminium (Al), Silver (Ag), kanye neGold (Au) Metal Mirrors

Izingubo zokukhanya ezilula kakhulu ziyizingqimba zensimbi ezincanyana, njenge-aluminium, ezifakwa ku-substrate yengilazi ukuze zakhe indawo yengilazi, inqubo ebizwa ngokuthi i-silvering.Insimbi esetshenziswayo inquma izici ezivezwayo zesibuko;i-aluminiyamu iyinalethi eshibhe kakhulu futhi evame kakhulu, ikhiqiza cishe u-88% -92% obonakalayo ku-spectrum ebonakalayo.Isiliva elibiza kakhulu, elinokubonakala okungama-95% -99% ngisho nakwi-infrared ekude, kodwa linciphise ukubukeka (<90%) ezindaweni eziluhlaza okwesibhakabhaka kanye ne-ultraviolet spectral.Okubiza kakhulu igolide, eligcwele infrared.Inikeza ukubonakala okuhle kakhulu (98%–99%), kodwa ukuboniswa okulinganiselwe kumaza wamaza angaphansi kuka-550 nm, okuholela kumbala osagolide ohlukile.

Ngokulawula ukushuba kanye nokuminyana kwe-coating yensimbi, i-reflectivity ingancishiswa futhi ukudluliswa kwendawo kwanda, okuholela esibukweni sesiliva esiyingxenye.Lezi ngezinye izikhathi zisetshenziswa "njengezibuko zendlela eyodwa".

Olunye uhlobo olukhulu lwe-optical coating luyi-dielectric coating (okungukuthi, ukusetshenziswa kwezinto ezinezinkomba ezihlukile ze-refractive njenge-substrate).Aqukethe izendlalelo ezincane zezinto zokwakha, njenge-magnesium fluoride, i-calcium fluoride, nama-oxide ensimbi ahlukahlukene, afakwa kuma-optical substrates.Ngokukhetha ngokucophelela ukubunjwa okunembile, ukujiya kanye nenombolo yalezi zingqimba, ukubukeka nokudluliswa kwe-coating kungacushwa ukuze kukhiqizwe cishe noma iyiphi impahla oyifunayo.I-reflective coefficient yendawo ingancishiswa ibe ngaphansi kuka-0.2%, okuholela embozweni ephikisana ne-reflective (AR).Ngokuphambene, ngezingubo zokubonisa okuphezulu (HR), ukubukeka kungakhushulwa kube ngaphezu kwama-99.99%.Izinga lokubonisa ukukhanya lingabuye lilungiswe libe inani elithile, isibonelo, ukukhiqiza isibuko esibonisa u-90% kububanzi obuthile be-wavelength futhi sidlulise u-10% wokukhanya okuwela kuso.Izibuko ezinjalo zivame ukusetshenziswa njengama-couplers okukhiphayo kuma-beam splitters nama-lasers.Ngaphandle kwalokho, ukugqoka kungaklanywa ukuze isibuko sibonise kuphela ibhande elincane lama-wavelengths, okwenza isihlungi se-optical.

Ukushintshashintshashintsha kwezinto zokumboza nge-dielectric kuholele ekusetshenzisweni kwazo ezintweni eziningi zesayensi ezibonakalayo ezifana namalaser, ama-optical microscopes, ama-refractor telescopes, nama-interferometer, kanye namadivayisi abathengi afana nama-binoculars, izibuko zamehlo, namalensi ezithombe.

Izendlalelo ze-Dielectric ngezinye izikhathi zisetshenziswa phezu kwamafilimu ensimbi ukuze kuhlinzekwe isendlalelo esivikelayo (njenge-silicon dioxide ku-aluminium), noma ukwandisa ukubukeka kwefilimu yensimbi.Izinhlanganisela zensimbi ne-dielectric nazo zisetshenziselwa ukudala izimbotshana ezithuthukisiwe ezingakwazi ukukhiqizwa nganoma iyiphi enye indlela.Isibonelo yilokho okubizwa ngokuthi "isibuko esiphelele", esibonisa ukukhanya okuphezulu (kodwa okungaphelele) okunokuzwela okuphansi ngokungavamile kubude beza, i-engeli, kanye ne-polarization.