Ngaba i-940NM ikhuselekile?

I-940NM ye-LED inokuba yiphakheji ngohlobo lwe-SMD kunye nohlobo lwe-LAMP. Kodwa ngexesha lesicelo, ukukhanya kwe-IR i-IR kwi-940nm Waveleth ikhuselekile?

Ukhuseleko lwe-940 NM (i-nanometer) yasetyenziswa kwi-infrared (ir) ye-infrared (ir) ye-Deads Ukufumanisa ukuba i-940 NM yindawo ekhuselekileyo yeliso, kubalulekile ukuba uqonde ubume besi savelength, ukusebenzisana neliso kunye nemigangatho yokhuseleko enxulunyaniswa nayo.
Ukukhanya kwe-infrared kuwela ngaphakathi kwe-elektromagnetic spectrum, kunye namaza amade ngaphezu kwesona sikhanyiso esibonakalayo. Iliso lomntu linovelwano ngama-lavelength esuka emalunga ne-400nm ye-LED i-lavelethth (iViolet) ukuya kwi-730NM ikhokelele i-73m). Ngaphandle kolu luhlu, ukukhanya kuyabonakala kwiliso lakho. Nangona kunjalo, oku akuthethi ukuba ayinakuchaphazela izicubu ze-ocular.
Ubungozi obunokubange bubangelwe kukuvezwa kwemitha ye-infrared kuxhomekeke kwimiba eyahlukeneyo efana ne-wavelength, ukungcungcutheka kwamandla, ixesha lokuveza, kunye nemvakalelo yezicubu ze-ocular ukuya kwi-wavelength ye-octure ukuya kwi-wavelength ye-octure ukuya kwi-wavelength ye-octure kwi-wavelength ye-octure kwi-wavelength ye-octure ukuya kwi-wavelength ye-tissuri. Kwimeko ye-940 NM, ithathelwa ukuba ikhuseleke ngamehlo phantsi kweemeko eziqhelekileyo zokusebenza.
Esona sizathu siphambili sokukhuseleka kwamehlo angama-940 i-NM yindawo yayo ephantsi i-cornea, lens, kunye ne-retina. ICornea, ekubeni ingumaleko wamehlo, isebenza njengomqobo okhuselayo ngokuchasene nezinto zangaphandle kunye nokukhanya okugqithisileyo. Ifumana ukukhanya kakhulu kwe-UV kunye nenxalenye ebalulekileyo yokukhanya okubonakalayo, kodwa kubonakala ngokucacileyo kwi-940 nm ukukhanya.
Ngokufanayo, iilensi, zibekwe emva kweCornea, ifumana ukukhanya i-Uv kunye nokukhanya okubonakalayo, kodwa kukwabonakala ngokucacileyo ukukhanya, kubandakanya i-940 NM. I-retina, i-tishu ebuthathaka yokukhanya ngasemva kweliso, yeyona nto ibaluleke kakhulu xa kuziwa kukhuseleko lwamehlo. Nangona kunjalo, nge-940 NM, i-retina ikwangenelele, inciphisa umngcipheko wokonakalisa.
Kubalulekile ukuba uqaphele ukuba ngelixa i-940 NM ithathwa njenge-isweni elikhuselekileyo phantsi kweemeko eziqhelekileyo zokusebenza, ukuvezwa ixesha elide okanye ukubonakaliswa okunzulu kwezi zinto kusabangela ingozi. IKhomishini ye-elektrotenical yehlabathi (iec) imisele imigangatho yokhuseleko ukuqinisekisa ukusetyenziswa ngokukhuselekileyo kwee-lars kunye neminye imithombo ye-radication, kubandakanya infrared.
Ngokutsho kwe-IEC 60825-1 emiliselweyo, i-lasers ikhupha i-940 nm iwele kwiklasi ye-1 okanye iklasi ye-1m, kuxhomekeke kwimveliso yamandla. Iklasi 1 I-Lasers ithathwa njengekhuselekileyo phantsi kwayo yonke imiqathango yokusetyenziswa kwesiqhelo, kubandakanya ukuthandwa kwexesha elide, ngelixa iklasi ikhuselekile xa ijongwa njengeliso elijongwa ngqo neliso elibonakalayo.
Imigangatho ye-IEC ikwachaza imida yokubonisa, echaza ukubonakaliswa okuphezulu (i-MPE) ye-wavelenglert ezahlukeneyo kunye neendlela ezahlukeneyo. Le mida isekwe kuphando olubanzi kwaye ithathele ingqalelo ukubakho komonakalo wonyaka we-thermal kunye nefoto kwizicubu ze-ocular.
Ukuqinisekisa ukhuseleko kwamehlo, abavelisi bezixhobo ezikhupha ukukhanya kwe-940 ntlukukhanya, njenge-IR ye-IR kunye ne-IR Reodes, kufuneka ilandele ngqo imigangatho yokhuseleko. Babandakanya imiqondiso efanelekileyo yokhuseleko, njengokungafaniyo, ukusikelwa umda kwamandla, kunye neefilitha ezichaziweyo, ukunciphisa umngcipheko wokonakaliswa kwamehlo.

Ukuqukumbela, i-940 NM ukukhanya kukhuselekile ngokubanzi kuthathelwa ingqalelo ngamehlo phantsi kweemeko eziqhelekileyo zokusebenza. Ukuthathwa kwayo okuphantsi kwayo kwezi zixhobo ze-ocular, ngakumbi iCornea, lens, kunye ne-retina, inciphisa umngcipheko wokonakalisa. Nangona kunjalo, ukubambelela kwimigangatho yokhuseleko, enjengezo zisekwe yi-IEC, kubalulekile ukuqinisekisa ukusetyenziswa ngokukhuselekileyo nokuthintela ingozi enxulumene nokuvezwa kwexesha elide okanye ukubonakaliswa okunzulu kwesi savength.