Umqondo Wokucindezeleka
Lapho sixoxa ngomqondo wokucindezelwa, nakanjani kufanele sibandakanye ubunzima.Ukucindezeleka kusho amandla akhiqizwa ngaphakathi kwento ukuze amelane nokuguquguquka ngaphansi kwamandla angaphandle.I-Strain, ngakolunye uhlangothi, ibhekisela ekushintsheni okuhlobene kokuma nobukhulu bento ngaphansi kwamandla angaphandle.Le mibono emibili, njengemingcele ebalulekile yokuchaza nokulinganisa ukuziphatha nokusebenza kwezinto ezingaphansi kwengcindezi, isetshenziswa kakhulu emkhakheni wesayensi yezinto.
Ukucindezeleka Kwelensi
Emkhakheni wesayensi yezinto zokwakha, ukucindezeleka kuwumqondo obalulekile.Ukukhiqizwa kwamalensi e-resin kuyisiqondiso esibalulekile sokusetshenziswa kulo mkhakha, okubandakanya ulwazi olufanele lwezinto ezisetshenziswa ilensi.Kulezi zinsuku, ama-lens ajwayelekile emakethe enziwa ikakhulukazi ngezinto ze-resin.Phakathi nenqubo yokukhiqiza, isizukulwane sokucindezeleka kuma-lens akunakugwenywa.Okukhathaza kakhulu ukuthi umphumela wokucindezeleka wama-lens awukwazi ukubonakala ngokubonakalayo ngeso lenyama, futhi ungabhekwa ngokuphumelelayo kuphela ngosizo lwemishini ekhethekile yokuhlola optical njengemitha yokucindezeleka.Phakathi nenqubo yokukhiqiza, amalensi ngokuvamile angase abonise izinhlobo ezimbili zezenzakalo zengcindezi yangaphakathi: ingcindezi yokuma kanye nengcindezi yokuncipha.Lezi zinhlobo ezimbili zokucindezeleka zingaba nomthelela othile kwikhwalithi nokusebenza kwamalensi, ngakho-ke zidinga ukunakwa ngokwanele.
① I-Orientation Stress
Phakathi nenqubo yokubunjwa kwezinto ze-resin, amaketanga e-molecular angaphansi kwengcindezi ephezulu kanye namandla aphezulu okugunda, okubangela ukuba benze izinguquko ezinkulu.Ngenxa yokuthi amaketanga e-molecular of material aqandiswe esimweni sokungahlelekile futhi akhululekile ngaphambi kokubuyela ngokugcwele esimweni sawo semvelo, ingcindezi yokuma eyinsalela iyakhiqizwa.Lesi simo sibonakala ikakhulukazi ezintweni ze-PC.
Incazelo elula:
I-lens yenziwe nge-resin material.Phakathi nenqubo yokubumba, ukuguquka kusuka ku-liquid kuya kwi-lens eqinile kubonisa ukufana okungaphelele, okuholela ekucindezelekeni kwangaphakathi.Lokhu kucindezeleka kwangaphakathi kubonakala njengokucindezela okuvela ezindaweni zokuminyana okuphezulu kuya ezindaweni zokuminyana okuphansi.
②Ingcindezi Yokuncipha
Ngesikhathi senqubo yokukhiqiza yezinto ezisetshenziswa yi-resin, amaketanga e-molecular, njengoba eshintsha esuka ekuncibilikeni aye ekupholiseni, angase ahlangabezane nokusatshalaliswa okungajwayelekile kwamazinga okushisa okupholisa ngenxa yokuhluka kobukhulu bodonga lomkhiqizo noma imigudu yamanzi okupholisa.Ngakho-ke, lo mehluko wokushisa ungaholela emazingeni ahlukene okuncipha ezindaweni ezahlukene.Umehluko kumazinga okuncipha phakathi kwezindawo ezihlukene ungase ubangele ukucindezeleka okuyinsalela ngenxa yemiphumela yokushuba kanye namandla okugunda.
Incazelo elula:
Phakathi nenqubo yokupholisa yokukhiqizwa kwamalensi, izici ezinjengomehluko wokujiya kwamalensi kanye nobuhlobo bazo nemishini yokupholisa yangaphakathi, isibonelo, ukupholisa ngokushesha kwezinye izindawo nokupholisa kancane kwezinye, konke kungaholela esizukulwaneni sokucindezeleka kwangaphakathi.
Ukuqedwa Kwengcindezi Yelensi
1. Ukuthuthukisa Amasu Okukhiqiza
Ukuze kuncishiswe ukukhiqizwa kwengcindezi yangaphakathi ngesikhathi sokukhiqiza amalensi, abakhiqizi bamalensi baqhubeka bethuthukisa futhi bathuthukise amasu okukhiqiza.Phakathi nenqubo yokukhiqiza ilensi, ilensi ithatha izinyathelo ezintathu zokuphulukisa izinga lokushisa eliphezulu.Inqubo yokuqala yokwelapha iguqula ilensi isuke esimweni esiwuketshezi iye esimweni esiqinile futhi iqede ingcindezi engokwemvelo ngaphakathi kokuqinile.Ama-curings amabili alandelayo ahlose ukuqeda ukucindezeleka kwangaphakathi izikhathi eziningi, ngaleyo ndlela kuzuzwe isakhiwo sangaphakathi esifana kakhulu se-lens.
2. Ukuphumula Kokucindezeleka Kwelensi
Ngokwencazelo yomthetho kaHooke wesayensi yemvelo, ngaphansi kwezimo ezicindezelayo, ukucindezeleka kuncipha kancane kancane ngokuhamba kwesikhathi, into eyaziwa ngokuthi ijika lokuphumula ukucindezeleka.Lokhu kusho ukuthi umumo kanye nemiphumela yokucindezeleka yokuncipha ekhiqizwa phakathi nenqubo yokukhiqiza ilensi kancane kancane iba buthaka njengoba isikhathi sokugcinwa kwelensi ngemva kokukhula sikhula.Isikhathi sokuphumula sokucindezeleka kwelensi sihlobene eduze nokucindezeleka nokucindezeleka kwangaphandle.Ngaphansi kwezimo ezijwayelekile, ingcindezi kulensi izokwehla ibe ncane cishe ngemva kwezinyanga ezintathu ngemva kokuqedwa kokukhiqizwa kwamalensi.Ngakho-ke, ngokuvamile, ukucindezeleka kwangaphakathi ku-lens empeleni kuqedwa ngemva kokushiya imboni.
Isizukulwane Sokucindezeleka Ezingilazini Zamehlo
Uma kubhekwa ukuqonda kwengcindezi yelensi, siyazi ukuthi umthelela wengcindezi emikhiqizweni yelensi ngayinye mancane uma kuqhathaniswa, futhi ungathathwa njengokungabalulekile.Ngakho-ke, ezingeni likazwelonke lamalensi e-China, imingcele yengcindezi ayifakiwe kumbandela wokufaneleka.Ngakho, iyini imbangela yokucindezeleka kwengilazi yamehlo?Lokhu kuhlobene kakhulu nobuchwepheshe benqubo yokulungiselela ingilazi yamehlo eyenziwe ngokwezifiso.
Ezitolo ezidayisa ingilazi yamehlo, ngesikhathi senqubo yokufaka ilensi engaphansi ohlakeni, udokotela wamehlo ugaya ilensi enkulu kancane kunosayizi wangempela odingekayo ukuze ivimbele ilensi ukuthi ingaxegeki kakhulu futhi isuke kalula kuhlaka.Lokhu kuqinisekisa ukulingana okuvikelekile lapho ilensi iboshelwe kuhlaka ngezikulufo, ukuyivimbela ukuthi ingasheleli.Kodwa-ke, lokhu kusebenza kungase kukhulise ukucindezeleka kwe-lens, okuholela ekuphatheni kabi lapho kugqokwe.Ubukhulu belensi yobukhulu noma ukuqinisa ngokweqile kwezikulufu zozimele kungase kubangele ukuphindaphinda okungalingani endaweni engaphezulu yelensi, okuholela ekunyakazeni okufana namagagasi futhi kuthinte ikhwalithi yesithombe.
I-Phenomenon ye-Eyeglass Stress Generation
1. I-Birefringence
Ngenxa yosayizi wokugaya othe ukuba mkhulu welensi, ukuqiniswa phakathi nenqubo yokuhlanganisa kubangela ukuba indawo ewumngcele welensi icindezeleke, okuholela ekwandeni kokuminyana.Lolu shintsho lokuminyana lushintsha inkomba yokuqala ye-refractive yelensi, ngaleyo ndlela idale ukwenzeka kwe-"birefringence" kulens.
2. Itshekile
Ukusabalalisa Ngesikhathi senqubo yokuhlanganisa ingilazi yamehlo, uma ubukhulu buqinile kakhulu, kuzobangela ukuthi i-lens icindezeleke, kubangele "imibimbi" engaphezulu futhi ibangele ukuhlakazeka okugwetshiwe kwelensi.
Lapho sibhekene nezinkinga ezinjalo, singasusa ilensi kuhlaka ukuze sishintshe isimo esicindezelwe silensi.Lolu shintsho luwukulungiswa kokucindezeleka kwesikhashana, futhi ngemva kokususwa kwamandla angaphandle, isimo se-lens singakhululeka noma sibuyiselwe ngokuphelele.Kodwa-ke, kufanelekile ukuqaphela ukuthi uma kunezinguquko zesikhathi eside zokucindezeleka kwangaphakathi okubangelwa ukucindezela kwangaphandle, ngisho noma i-lens ihlakazwa futhi ihlanganiswe kabusha, ayikwazi ukuqinisekisa ukubuyiselwa kwelensi esimweni sayo sokuqala.Kulesi simo, okuwukuphela kwenketho ukukhetha ukwenza ngendlela oyifisayo ilensi entsha.
Ukucindezelwa kwelensi kuvame kakhulu ezingilazini ezinohlaka olugcwele, futhi ezingilazini ezingenarimu, kungenzeka futhi uma ucingo lwerimu luqine kakhulu.Lolu hlobo lwesimangaliso luvamise ukwenzeka endaweni ewumngcele welensi, futhi ukucindezeleka okuncane kunomthelela omncane kukhwalithi yokubuka futhi akubonakali kalula.Kodwa-ke, uma ingcindezi idlulele, izothinta indawo emaphakathi ye-optical, okuholela ekuboneni okufiphele nokukhathala okubukwayo, ikakhulukazi uma ubheka i-periphery noma phakathi nokunyakaza kokuskena.
Ngenxa yokuthi ingcindezi yengilazi yamehlo ibangelwa kakhulu ukucindezelwa kohlaka, izibuko ezingenafreyimu zibonisa ukusebenza okungcono kokukhulula ingcindezi.
I-Eyeglass Stress Indlela Yokuzihlola
Ngemva kokuba ngaphansi kwamandla angaphandle, amalensi ezinto ezahlukene azokhiqiza amaphethini okucindezeleka ahlukene ngenxa yokuhluka kokuqina, ubulukhuni, kanye nesakhiwo sangaphakathi.Kodwa-ke, izimo zengcindezi zingenzeka kungakhathaliseki ukuthi iyiphi into.Okulandelayo isingeniso esifushane sendlela yokuhlola ukucindezeleka.Amathuluzi adingekayo imonitha yekhompyutha namalensi agqamile.
Indlela yokusebenza:
1. Qala ikhompuyutha bese uvula idokhumenti ye-Word engenalutho.(Ukuhlola ingcindezi kudinga ukusetshenziswa kokukhanya okuhlukanisiwe, futhi imonitha yekhompyutha iwumthombo ovamile wokukhanya kokuhlola ukucindezeleka.)
2. Beka izibuko phambi kwesikrini sekhompyutha futhi ubhekisise ukuze ubone ukuthi zikhona yini izinto ezingavamile.
3. Sebenzisa amalensi agqamile (ongakhetha kukho kuhlanganisa izibuko zelanga ezinemibala egqamile, iziqeshana zamalensi agqamile, nezingilazi zemuvi ye-3D) ukuze ubuke amaphethini okucindezeleka kumalensi ezingilazi kanye nemonitha yekhompyutha.
Amalensi ane-polarized angaveza ukuhlanekezela okunemigqa endaweni ewumngcele welensi, okuwukubonakaliswa kwamaphethini okucindezeleka.Ukusatshalaliswa kokucindezeleka ezingilazini ngokuvamile kubonakala njengamaphuzu okucindezeleka nezinkambu zokucindezeleka, futhi izinga lamaphethini okucindezeleka lihlobene eduze nomphumela wokucindezeleka wezibuko.Ngokuhlaziya ukusatshalaliswa kwamaphethini okucindezeleka, singakwazi ukunquma kalula isiqondiso sokucindezelwa kanye nenani lokucindezeleka okuye kwatholwa ilensi phakathi nenqubo yokuhlanganisa.
Lapho ihlolwa, ilensi yasekuqaleni ngaphambi kokuhlanganiswa isaqukethe izinga elithile lokucindezeleka lapho kungekho amandla angaphandle.Lokhu kungenxa yamandla angalingani afana nokucindezelwa kanye nokuncipha ngesikhathi sokukhiqiza, okuholela ekucindezelekeni kwangaphakathi.Kuyaphawuleka ukuthi ukuba khona kokucindezeleka kwangaphakathi ezingilazini zamehlo kunzima ukugwema, futhi inani elincane noma elincane lamaphethini okucindezeleka liyamukeleka.Ngesikhathi esifanayo, amaphethini okucindezeleka akufanele asatshalaliswe esikhungweni se-optical lens ukugwema ukuthinta ikhwalithi yokubuka.
Ekuphetheni
Imiphumela yokucindezeleka yezibuko zamehlo ingaba nomthelela kukhwalithi yazo yokubuka, njengokungaphatheki kahle lapho ugqoke futhi uhlakazeka endaweni yokubuka ye-peripheral.Nokho, kufanele siqaphele ukuthi isimo sokucindezeleka sezibuko zamehlo kunzima ukusigwema, futhi uma nje sisebangeni elifanele, umthelela ekuboneni ungase ucishe ube yinto encane.Amalensi enziwe ngokwezifiso azuza kubuchwepheshe be-lathe, okuholela ezimweni eziphansi zengcindezi, futhi manje asewumkhiqizo ovelele emakethe yezingubo zamehlo ezisezingeni eliphezulu.
Isikhathi sokuthumela: Jan-12-2024