1,Yintoni ilensi ye-pinhole?
Ilensi yepinhole, njengoko igama lisitsho, yilensi encinci kakhulu, umngxuma wayo wokudubula ulingana nomngxuma wepin, yilensi esetyenziswa ziikhamera ze-ultra-micro. Iilensi zepinhole zisebenzisa umgaqo womfanekiso wemingxuma emincinci ukufumana imifanekiso kwaye zineempawu kunye nokusetyenziswa okukhethekileyo.
2,Zithini iimpawu zelensi ye-pinhole?
Njengenxalenye yesixhobo sekhamera esikhethekileyo, ilensi ye-pinhole ineempawu ezikhethekileyo:
(1)Imbonakalo efihliweyo
Iimbobo zelensi ye-pinhole zincinci kakhulu kwaye zifana nobukhulu be-pinhole. Ngenxa yobubanzi be-pore encinci, ubungakanani bekhamera ye-pinhole yonke buncinci kakhulu, budla ngokuba bubukhulu beengqekembe kuphela. Olu yilo luncinci lwenza ikhamera ye-pinhole ifihleke lula kwiindawo ezahlukeneyo, kwaye kunzima ukuyiqonda.
(2)Kakhulusi-cenarioiisazinzulu
Ngenxa yoyilo olukhethekileyo lwelensi ye-pinhole, ubunzulu bayo bomhlaba bunzulu kakhulu kwaye bunokuthatha imifanekiso enzulu kakhulu. Oku kuthetha ukuba izinto eziphambi kwekhamera zinokuboniswa ngokucacileyo kumphezulu womfanekiso nokuba umgama ungakanani na. Ngokusekelwe kolu phawu, ilensi ye-pinhole iqhube kakuhle xa kufotwa imimandla kunye noyilo lwezakhiwo kufuna ukucaca okukhulu.
(3)Ubude obungaguqukiyo kunye nokuvulwa kwe-focal
Iilensi yomngxuma wepinidla ngokungabi nabude be-focal kunye ne-aperture ehlengahlengiswayo. Nje ukuba ifakwe, i-engile kunye nokukwazi ukufumana ukukhanya kwelensi kuyalungiswa. Nangona oku kunqunyelwe kukuguquguquka kokudubula ukuya kwinqanaba elithile, kukwenza kube lula kwaye kube lula ukuyisebenzisa ilensi ye-pinhole.
Ilensi ye-pinhole
(4)Ukusebenza okulinganiselweyo kwiindawo ezinokukhanya okuphantsi
Ekubeni ilensi ye-pinhole inomngxuma omncinci kunye nokukhanya okuncinci, isiphumo sokudubula kwiindawo ezinokukhanya okuphantsi sisenokungabi sihle. Oku kunokubangela iingxaki ezifana nemifanekiso engacacanga kunye nokuphazamiseka kombala, kwaye kufuneka imithombo yokukhanya eyongezelelweyo okanye izixhobo ezincedisayo ukuphucula isiphumo sokudubula.
(5)Ngesandlasukuqalisa
Iilensi zePinhole zihlala zingenazo iimpawu eziphambili ezifana ne-autofocus kwaye zifuna useto kunye nohlengahlengiso olwenziwe ngesandla. Oku kwandisa ubunzima bokusebenza ukuya kwinqanaba elithile, kodwa kukwabonelela ngenkululeko engakumbi, okuvumela abafoti ukuba bahlengahlengise ngokulula ngokweemfuno ezithile.
(6)Uluhlu olubanzi lwezicelo
Ukufihla kunye nokulula kokusebenzisaiilensi zemingxumaZenze zisetyenziswe kakhulu kwiindawo ezininzi. Nokuba kukugada ukhuseleko lwasekhaya, ukugada iofisi okanye ukugada iindawo zikawonke-wonke, iilensi zemingxuma zingadlala indima ebalulekileyo. Kwangaxeshanye, zikwasetyenziswa kakhulu kuphando lwesayensi, ukugada izithuthi, ukugada izilwanyana nakwezinye iindawo.
3,Zithini iindlela zokusebenzisa iilensi ze-pinhole?
Iindawo zokusetyenziswa kweelensi zepinhole ziquka ikakhulu ezi zinto zilandelayo:
(1) Ukubeka iliso kukhuseleko
Iilensi zepinhole zincinci kwaye zifihliwe, ngoko ke zinokufakwa kwizixhobo ezincinci kakhulu kwaye zisetyenziswe njengokubeka esweni ukhuseleko olufihliweyo. Ngenxa yobukhulu bazo obuncinci, zinokufihlwa lula naphi na ukuze zidubule okusingqongileyo ngendlela efihlakeleyo.
Ilensi ye-pinhole yokujonga ukhuseleko
(2) Ukubeka iliso kwiindlela zokuhamba
Iilensi zepinhole zikwadlala indima ebalulekileyo kulawulo lwendlela ezidolophini. Zisetyenziselwa ukufota ukwaphulwa kwemithetho yendlela, ukurekhoda iindawo zeengozi zendlela, njl.njl., zinceda ukuphucula ukhuseleko lwendlela kunye nokusebenza kakuhle kolawulo.
(3) Intsimi yobugcisa
Iilensi zepinhole zisetyenziswa kwicandelo lobugcisa ukuvelisa iziphumo ezibonakalayo ezikhethekileyo. Ngenxa yokuba iilensi zepinhole zinobunzulu obungenasiphelo bentsimi, zinokwenza zombini umphambili kunye nemvelaphi zibonakale ngokucacileyo. Abaculi abaninzi kunye nabafoti basebenzisa le ndlela ukudala imvakalelo yamaphupha, yakudala.
(4)Icandelo lophando lwezenzululwazi
Ngenxa yeempawu zeiilensi zemingxuma, zikwasetyenziswa kakhulu kwicandelo lophando lwesayensi. Umzekelo, kwi-astronomy observations, ii-pinhole lens zingasetyenziselwa ukujonga ilanga okanye ezinye izidalwa zasezulwini. Kwangaxeshanye, ii-pinhole lens zikwazixhobo ezibaluleke kakhulu ekuqwalaseleni ii-micro chemical reactions kunye ne-atomic-scale physical phenomena.
(5)Icandelo lezonyango
Kwi-radiology kunye ne-nuclear medicine imaging, iilensi ze-pinhole zidlala indima ebalulekileyo kwiindlela zokujonga ezingezizo ezihlaselayo ezifana ne-PET (positron emission tomography) kunye ne-SPECT (single photon emission computed tomography).
Ilensi ye-pinhole yovavanyo lwezonyango
(6)Intsimi yemfundo
Iilensi zepinhole zikwasetyenziswa kakhulu kwimfundo, ingakumbi ekufundiseni nge-optics kunye nokufota, ukunceda abafundi baqonde indlela ukukhanya okusasaza ngayo ngelensi kunye nendlela imifanekiso eyenziwa ngayo.
(7)Okomntupi-hotography
Ukufihla ilensi ye-pinhole kuyenza ibe nezicelo ezithile kwicandelo lokufota komntu. Abantu banokuyifihla ilensi ye-pinhole njengezinto zemihla ngemihla, njengeebhokisi zephepha, ijeli yeshawa, izibane ezincinci zetafile, njl.njl., zokufota ngokufihlakeleyo.
Kufuneka kuqatshelwe ukuba ngenxa yendalo yazo efihlakeleyo, iilensi zemingxuma zisetyenziswa lula ngabaphuli-mthetho kwimisebenzi engekho mthethweni, efana nokukroba, ukufota ngasese, njl.njl., nto leyo ephula kakhulu ubumfihlo babemi kunye nesidima sabo.
Ngoko ke, xa usebenzisaiilensi zemingxuma, imithetho efanelekileyo, imimiselo kunye nemigangatho yokuziphatha kufuneka ilandelwe ukuqinisekisa ukuba isetyenziswa ngokusemthethweni kwaye ihambelana nemimiselo.
Iingcinga Zokugqibela:
Ukuba unomdla wokuthenga iintlobo ngeentlobo zeelensi zokujonga, ukuskena, iidrone, ikhaya elikrelekrele, okanye naluphi na olunye uhlobo lokusetyenziswa, sinazo izinto ozifunayo. Nxibelelana nathi namhlanje ukuze ufunde okungakumbi ngeelensi zethu kunye nezinye izixhobo.
Ixesha leposi: Disemba-13-2024
