Isibuko se-Aluminium enamathelayo sesibani se-Slit
Incazelo Yomkhiqizo
Lolu hlobo lwezibuko luvame ukusetshenziselwa izibani ezihlukanisiwe ku-ophthalmology ukunikeza isithombe esicacile nesinembile seso lesiguli. I-aluminium enamathela esibukweni sesibani esisikiwe isebenza njengendawo ekhanyayo, evumela ukukhanya ukuthi kuqondiswe ema-engeli ahlukahlukene ngomfundi wesiguli kanye nasesweni.
I-aluminium evikelayo isetshenziswa ngenqubo ebizwa ngokuthi i-vacuum deposition. Lokhu kuhilela ukushisisa i-aluminium egumbini le-vacuum, okuyenza ihwamuke bese ijiya phezu kwesibuko. Ubukhulu be-coating bungalawulwa ukuze kuqinisekiswe ukubukeka okuhle nokuqina.
Izibuko ze-Aluminium ezivikelayo zikhethwa kunezinye izinhlobo zezibuko zamalambu ahlukanisiwe ngenxa yokuthi zinokukhanya okuphezulu, zimelana nokugqwala nokuhuzuka, futhi azisindi. Indawo ekhanyayo yesibuko idinga ukugcinwa ukuze kuqinisekiswe ukusebenza kahle, ngakho-ke, kufanele kuqashelwe ukugwema ukunwaya noma ukulimaza indawo yesibuko ngesikhathi sokusetshenziswa noma sokuhlanza.
Isibani esisikiwe siyithuluzi elibalulekile lokuxilonga elisetshenziswa odokotela bamehlo ukuhlola iso. Isibani esisikiwe sivumela odokotela ukuba bahlole izingxenye ezihlukahlukene zeso, njenge-cornea, iris, lens, ne-retina. Enye yezingxenye ezibalulekile zesibani se-slit yisibuko, esisetshenziselwa ukunikeza isithombe esicacile nesibukhali kweso. Izibuko ezinamekwe nge-Aluminium zikhule ngokuduma eminyakeni yamuva nje ngenxa yokusebenza kwazo okuphakeme nokuqina kwazo.
Isibuko esenziwe nge-aluminium siyisibuko sekhwalithi ephezulu esenziwe ngengilazi. Ingilazi imbozwe ungqimba oluncane lwe-aluminium, okunikeza isibuko ukukhanya okuthuthukisiwe kanye nezici zokubona. Isibuko siklanyelwe ukubekwa esibanini esisikiwe, lapho sibonisa khona ukukhanya nemifanekiso evela esweni. Ukufakwa kwe-aluminium esibukweni kunikeza ukukhanya okuseduze okuphelele, okuqinisekisa ukuthi isithombe esiwumphumela sicacile futhi siyakhanya.
Esinye sezici ezivelele zezibuko ze-aluminium ukuqina kwazo. Isibuko senziwe ngezinto ezisezingeni eliphezulu ezimelana nokulimala ngenxa yokushaqeka ngokomzimba, imihuzuko, namakhemikhali. Isibuko siklanyelwe ukumelana nobunzima bokusetshenziswa kwansuku zonke, okwenza kube yingxenye ethembekile nengabizi kakhulu yesibani esinqunyiwe.
Isibuko esenziwe nge-aluminium sinikeza nokuqhathanisa okuhle kakhulu. Ukubonakala okuphezulu kwesibuko kuvumela ophthalmologists ukuba babone imininingwane yamehlo ngokucacile, okwenza kube lula ukuxilonga izifo ezihlukahlukene zamehlo. Ngenxa yokusebenza kwayo okuphezulu kwe-optical, izibuko ezimbozwe nge-aluminium seziphenduke ithuluzi elibalulekile lodokotela bamehlo ekuxilongeni nasekulashweni kwabo kwansuku zonke.
Kafushane, isibuko esifakwe nge-aluminium siyingxenye ebalulekile yesibani esinqunyiwe, esihlinzeka ophthalmologists ngezithombe zamehlo ezicacile nezibukhali. Izinto ezisezingeni eliphezulu ezisetshenziswa ekwakhiweni kwesibuko zenza sithembeke futhi siqine, siqinisekise ukuthi singakwazi ukumelana nobunzima bokusetshenziswa kwansuku zonke. Ukusebenza kwayo okuphakeme kokubona kanye nokuqina okuhlala isikhathi eside kuyenza ibe utshalomali oluhle kakhulu kunoma yimuphi udokotela wamehlo ofuna ukuthuthukisa amakhono abo okuxilonga.
Imininingwane
| I-substrate | B270® |
| Ukubekezelela Dimensional | ±0.1mm |
| Ukujiya Ukubekezelelana | ±0.1mm |
| I-Surface Flatness | 3 (1)@632.8nm |
| Ikhwalithi Yobuso | 60/40 noma ngaphezulu |
| Imiphetho | Ground and Blacken, 0.3mm max. Ububanzi be-bevel obugcwele |
| Indawo Engemuva | Ground and Blacken |
| Imbobo ecacile | 90% |
| Ukufana | <3' |
| Ukugqoka | I-Protective Aluminium Coating, R>90%@430-670nm,AOI=45° |
