I-Optical Coating

I-Optical Coating

I-optical coating ngumaleko obhityileyo okanye iileya zezinto ezifakwe kwi-optical element, njengelensi okanye isibuko, etshintsha indlela i-optical element ebonisa ngayo kwaye idlulise ukukhanya.Olunye uhlobo lwe-optical coating yi-anti-reflective coating, enciphisa ukubonakaliswa okungafunekiyo ukusuka kwindawo, esetyenziswa ngokuqhelekileyo kwiiglasi zamehlo kunye neelensi zekhamera.Olunye uhlobo lugqithiso olubonakalisa kakhulu, olungasetyenziselwa ukuvelisa izibuko ezibonisa ngaphezu kwe-99.99% yokukhanya.Iingubo zamehlo ezintsonkothileyo ezibonisa ukubonakaliswa okuphezulu kumaza amaza athile kunye ne-antireflection kuluhlu olude luvumela ukuveliswa kwezihluzo ze-dichroic thin-film.

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Uhlobo lokwaleka

IReflection vs. Wavelength Curves at Normal Incident for Aluminium (Al), Silver (Ag), kunye neGold (Au) Metal Mirrors

Eyona nto ilula yokwambatha i-optical layers yintsimbi ecekethekileyo, efana ne-aluminiyam, efakwe kwi-substrate yeglasi ukwenza umphezulu weglasi, inkqubo ebizwa ngokuba yisilivere.Isinyithi esisetyenzisiweyo sinquma iimpawu zokubonakalisa isibuko;I-aluminiyam yeyona nto inexabiso eliphantsi kwaye ixhaphake kakhulu, ivelisa malunga ne-88% -92% imbonakalo kwispectrum ebonakalayo.Ixabiso elithe kratya isilivere, ene-95% -99% ibonakalisa nakwi-infrared ekude, kodwa iyancipha ukubonakaliswa (<90%) kwimimandla ye-blue and ultraviolet spectral.Eyona ibiza kakhulu yigolide, ene-infrared epheleleyo.Inika imbonakalo egqwesileyo (98% -99%), kodwa imbonakalo enyiniweyo kumaza obude obungaphantsi kwe-550 nm, ikhokelela kumbala ogolide owahlukileyo.

Ngokulawula ubukhulu kunye nobuninzi bentsimbi yentsimbi, ukubonakaliswa kungancitshiswa kunye nokuhanjiswa kwendawo kwandiswe, okukhokelela kwisibuko esisisiqingatha sesilivere.Ezi ngamanye amaxesha zisetyenziswa "njengezipili zendlela enye".

Olunye uhlobo oluphambili lwe-optical coating luyi-dielectric coating (oko kukuthi, ukusetyenziswa kwezixhobo ezinama-indices ahlukeneyo e-refractive njenge-substrate).Ziqulathe umaleko obhityileyo wezinto ezinje ngemagnesium fluoride, calcium fluoride, kunye neentsimbi ezahlukeneyo oxides, ezifakwe kwi-optical substrates.Ngokukhetha ngononophelo ukubunjwa okuchanekileyo, ubukhulu kunye nenani lale maleko, ukubonakaliswa kunye nokuhanjiswa kwengubo kunokulungiswa ukuvelisa phantse nayiphi na ipropati efunwayo.I-coefficient ye-reflective ye-surface ingancitshiswa ngaphantsi kwe-0.2%, ibangele i-anti-reflective (AR) yokugqoka.Ngokwahlukileyo, kunye neengubo eziphezulu zokubonisa (HR), ukubonakaliswa kunokunyuswa ukuya ngaphezu kwe-99.99%.Inqanaba lokubonisa liyakwazi ukulungelelaniswa kwixabiso elithile, umzekelo, ukuvelisa isibuko esibonisa i-90% kwiinkalo ezithile ze-wavelength kunye nokuhambisa i-10% yokukhanya okuwela kuyo.Ezi zipili ziqhele ukusetyenziswa njenge-output couplers kwi-beam splitters kunye ne-lasers.Ngaphandle koko, i-coating inokuthi iyilwe ukwenzela ukuba isibuko sibonise kuphela ibhanti encinci ye-wavelengths, ukudala i-optical filter.

Ukuguquguquka kokutyatyekwa kwe-dielectric kukhokelele ekusetyenzisweni kwazo kwizixhobo ezininzi zenzululwazi zamehlo ezinje ngelases, iimicroscopes zamehlo, iiteleskopu zerefractor, kunye ne-interferometers, kunye nezixhobo zabathengi ezinje ngeebinotyhulasi, iiglasi zamehlo, kunye neelensi zefoto.

Iingqimba ze-Dielectric ngamanye amaxesha zisetyenziselwa kwiifilimu zetsimbi ukubonelela ngoluhlu olukhuselayo (njenge-silicon dioxide kwi-aluminium), okanye ukwandisa ukubonakaliswa kwefilimu yesinyithi.Iindibaniselwano zetsimbi kunye ne-dielectric nazo zisetyenziselwa ukudala iingubo eziphambili ezingenakuveliswa nayiphi na enye indlela.Umzekelo yinto ebizwa ngokuba "yisipili esigqibeleleyo", esibonisa imbonakalo ephezulu (kodwa engafezekanga) enovakalelo oluphantsi ngokungaqhelekanga kubude bobude, i-engile, kunye nepolarization.

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Ixesha lokuposa: Nov-07-2022