Iilensi ye-telecentricyenzelwe ikakhulu ukulungisa i-parallax yelensi yendabuko yemizi-mveliso, kwaye inokuba kumgama othile, ukuze ukwandiswa komfanekiso okufunyenweyo kungatshintshi, nto leyo ebaluleke kakhulu kwimeko yokuba into elinganisiweyo ayikho kumphezulu ofanayo.

Ngokusebenzisa uyilo lwelensi ekhethekileyo, ubude bayo obujolise ngqo bude kakhulu, kwaye ubude obubonakalayo belensi buhlala buncinci kunobude obujolise ngqo.

Iimpawu zeiilensi ze-telecentric

Uphawu lwayo kukuba inokwenza izinto ezikude zibonakale zinkulu kunobukhulu bazo bokwenyani, ngoko ke indawo okanye izinto ezikude zinokufotwa ngokucacileyo nangokuneenkcukacha.

Iilensi zeTelecentric zizisa utshintsho olusemgangathweni ekuhlolweni kokuchaneka kombono womatshini ngokusekelwe kwiimpawu zazo ezizodwa zokukhanya: isisombululo esiphezulu, ubunzulu obukhulu bentsimi, ukuphambuka okuphantsi kakhulu, kunye noyilo olulodwa lokukhanya okuhamba ngaxeshanye.

Iilensi zeTelecentric zisetyenziswa kakhulu kwimiboniso efana nemidlalo, iifoto zezilwanyana zasendle kunye nendalo, kunye nokujonga izinto ngeenkwenkwezi, kuba ezi ndawo zihlala zifuna ukudubula okanye ukujonga izinto zikude. Iilensi zeTelecentric zinokusondeza izinto ezikude "kufutshane" ngelixa zigcina ukucaca kunye neenkcukacha zomfanekiso.

Ukongeza, ngenxa yobude obude be-focaliilensi ze-telecentric, zinokufikelela ekufiphaleni kwemvelaphi kunye nobunzulu obungaphantsi kwentsimi, okwenza umxholo ubonakale ngakumbi xa ufota, ngoko ke zisetyenziswa kakhulu kwimifanekiso ye-portrait.

Uhlu olusisiseko lweelensi ze-telecentric

Iilensi zeTelecentric zahlulwe ngokubanzi zibe ziilensi ze-telecentric ezikwicala lezinto, iilensi ze-telecentric ezikwicala lomfanekiso kunye neelensi ze-telecentric ezikwicala lecala.

Ilensi yento

Ilensi ye-telocentric yento yi-aperture stop ebekwe kwi-image square focal plane yenkqubo ye-optical, xa i-aperture stop ibekwe kwi-image square focal plane, nokuba umgama wento uyatshintsha, umgama womfanekiso nawo uyatshintsha, kodwa ukuphakama komfanekiso akutshintshi, oko kukuthi, ubungakanani bento elinganisiweyo abutshintshi.

Ilensi ye-telecentric yesikwere sento isetyenziselwa ukulinganisa ngokuchanekileyo kwemizi-mveliso, ukugqwetheka kuncinci kakhulu, kwaye ukusebenza okuphezulu akunakufezekisa ukugqwetheka.

Umzobo weskimu wendlela yokukhanya kwe-telecentric kwicala lento

Ilensi yesikwere yomfanekiso

Ilensi ye-telecentric esecaleni komfanekiso ibeka i-aperture diaphragm kwindawo egxile kwizinto ukuze i-image-side principal ray ihambelane ne-optical axis. Ke ngoko, nangona indawo yokufaka i-chip ye-CCD itshintsha, ubungakanani bomfanekiso oqikelelweyo kwi-chip ye-CCD abutshintshi.

Umzobo wendlela yokukhanya kwe-telecentric yesikwere somfanekiso

Ilensi emacala omabini

Ilensi ye-telecentric emacala omabini idibanisa iingenelo zeelensi ezimbini ze-telecentric ezingentla. Kwinkqubo yomfanekiso wemizi-mveliso, ngokubanzi kusetyenziswa iilensi ze-telecentric zezinto kuphela. Ngamanye amaxesha, kusetyenziswa iilensi ze-telecentric kumacala omabini (ewe ixabiso liphezulu).

Kwicandelo lokucubungula imifanekiso yemizi-mveliso/ukubona koomatshini, iilensi ze-telecentric ngokubanzi azisebenzi, ngoko ke eli shishini alizisebenzisi.