Izibani ze-LED ziyindlela ethembisayo yokukhanyisa kwesimanje ezindaweni zomphakathi nasemakhaya. Manje sezithandwa ngenxa yokusebenzisa amandla kwazo ngokonga. Ngo-1927, i-LED yasungulwa ngu-O.V. I-Losev, noma kunjalo, izibani ze-LED zangena emakethe yabathengi kuphela ngawo-1960. Abathuthukisi balwela ukuthola ama-LED anemibala ehlukene, kwathi ngawo-1990, kwasungulwa amalambu amhlophe, manje angasetshenziswa empilweni yansuku zonke. Kuphephile ukusebenzisa ama-LED endlini yakho? Ukuphendula lo mbuzo, udinga ukwazi ukuthi ukukhanyisa kwe-LED kunamuphi umphumela empilweni yomuntu.
Ukulimala kwama-LED ezithombeni zombono
Ukuqinisekisa ikhwalithi yamalambu e-LED, izifundo eziningi zenziwa ososayensi baseSpain. Imiphumela yabo ikhombise ukuthi bakhiqiza umfutho owandayo wemisebe ye-shortwave, enamazinga aphezulu e-violet, futhi ikakhulukazi aluhlaza okwesibhakabhaka. Zithinta kabi izitho zombono, okungukuthi, zingalimaza i-retina yamehlo. Imisebe eluhlaza okwesibhakabhaka ingadala ukulimala kwalezi zinhlobo ezilandelayo:
- photothermal - kuholela ekwandeni kwezinga lokushisa;
- i-photomechanical - umphumela wokushaqeka kokukhanya;
- photochemical - izinguquko ezingeni le-macromolecular.
Lapho amaseli we-retinal pigment epithelium ephazamiseka, kuvela izifo ezahlukahlukene, kufaka phakathi lokhu kuholela ekulahlekelweni okuphelele kombono. Njengoba kufakazelwa ososayensi, ukukhishwa kokukhanya okuluhlaza okwesibhakabhaka kulawa maseli kuholela ekufeni kwawo. Ukukhanya okumhlophe nokuluhlaza nakho kuyalimaza, kodwa ngezinga elincane, futhi okubomvu akunangozi. Ngaphandle kwalokhu, ukukhanya okuluhlaza okwesibhakabhaka kukhuthaza ukukhiqizwa okuphezulu futhi kuthuthukise ukugxila.
Ochwepheshe abatusi ukusebenzisa izibani ze-LED kusihlwa nasebusuku, ikakhulukazi ngaphambi kokulala, ngoba kungaba nomthelela ezifweni ezilandelayo:
- izifo zomdlavuza;
- isifo sikashukela;
- Isifo senhliziyo.
Ngaphezu kwalokho, uketshezi lwe-melatonin luyacindezelwa emzimbeni.
Ukulimala kwe-LED kwimvelo
Ngaphezu komzimba womuntu, ukukhanya kwe-LED kunomthelela omubi emvelweni. Amanye ama-LED aqukethe izinhlayiya ze-arsenic, lead, nezinye izinto. Kuyingozi ukuhogela intuthu ekhiqizwa lapho kuphuka isibani se-LED. Yilahle ngamagilavu okuvikela kanye nesifihla-buso.
Ngaphandle kokuphazamiseka okusobala, amalambu e-LED asetshenziswa ngenkuthalo njengomthombo wezomnotho wokukhanyisa. Zingcolisa kakhulu imvelo kunezibani eziqukethe imercury. Ukwehlisa umthelela ongemuhle empilweni, akufanele usebenzise ama-LED njalo, zama ukugwema i-spectrum eluhlaza okwesibhakabhaka, futhi uvikele ukusebenzisa ukukhanyisa okunjalo ngaphambi kokulala.
