Izinhlobo kweilensi yezimboniintaba

Ngokuyinhloko kunezinhlobo ezine zesixhumi esibonakalayo, okuyi-F-mount, C-mount, CS-mount kanye ne-M12 mount. I-F-mount iyisixhumi esibonakalayo senhloso evamile, futhi ngokuvamile ifanele amalensi anobude bokugxila obungaphezu kuka-25mm. Uma ubude bokugxila belensi yenhloso bungaphansi kokungaba ngu-25mm, ngenxa yobukhulu obuncane belensi yenhloso, kusetshenziswa i-C-mount noma i-CS-mount, futhi abanye basebenzisa isixhumi esibonakalayo se-M12.

Umehluko phakathi kwe-C mount ne-CS mount

Umehluko phakathi kokuxhumana kwe-C ne-CS ukuthi ibanga ukusuka endaweni yokuxhumana yelensi kanye nekhamera ukuya endizeni egxilile yelensi (indawo lapho inzwa kagesi ye-CCD yekhamera kufanele ibe khona) ihlukile. Ibanga le-C-mount interface ngu-17.53mm.

Indandatho ye-adaptha engu-5mm C/CS ingangezwa kulensi ye-CS-mount, ukuze ikwazi ukusetshenziswa namakhamera ohlobo lwe-C.

Umehluko phakathi kwe-C mount ne-CS mount

Imingcele eyisisekelo yamalensi ezimboni

Inkambu yokubuka (FOV):

I-FOV ibhekisela kububanzi obubonakalayo bento ebhekiwe, okungukuthi, ingxenye yento ethwetshulwe inzwa yekhamera. (Ibanga lenkundla yokubuka liyinto okufanele iqondwe ekukhethweni)

Inkambu yokubuka

Ibanga lokusebenza (WD):

Isho ibanga ukusuka ngaphambili kwelensi ukuya entweni ehlolwayo. Okusho ukuthi, ibanga elingaphezulu lesithombe esicacile.

Isixazululo:

Usayizi omncane wesici ohlukanisekayo entweni ehloliwe ongalinganiswa ngesistimu yokuthwebula izithombe. Ezimweni eziningi, umkhakha wokubuka umncane, ngcono isixazululo.

Ukujula kokubuka (i-DOF):

Ikhono lelensi ukugcina ukulungiswa okufunayo lapho izinto ziseduze noma zikude nalapho kugxilwe khona kakhulu.

Ukujula kokubuka

Amanye amapharamitha weamalensi ezimboni

Usayizi we-chip wesithombe:

Usayizi wendawo osebenzayo we-chip sensor yekhamera, ngokuvamile ubhekisela kusayizi ovundlile. Le parameter ibaluleke kakhulu ukunquma ukukala kwelensi okufanele ukuze uthole inkambu yokubuka oyifunayo. I-lens primary magnification ratio (PMAG) ichazwa ngesilinganiso sosayizi we-sensor chip endaweni yokubuka. Nakuba amapharamitha ayisisekelo ahlanganisa usayizi nenkundla yokubuka ye-chip ezwelayo, i-PMAG ayiyona ipharamitha eyisisekelo.

Usayizi we-chip ozwelayo

Ubude bokugxila (f):

“Ubude bokugxila buwukulinganisa kokugxila noma ukwehlukana kokukhanya kusistimu yokubona, okubhekisela ebangeni elisuka enkabeni yokubona yelensi kuya lapho kugxilwe khona ekuqoqweni kokukhanya. Futhi yibanga ukusuka enkabeni yelensi ukuya endizeni yokucabanga njengefilimu noma i-CCD kukhamera. f={ibanga lokusebenza/inkambu yokubuka uhlangothi olude (noma uhlangothi olufushane)}Uhlangothi olude lwe-XCCD (noma uhlangothi olufushane)

Umthelela wobude bokugxila: ubude obuncane bokugxila, kukhulu ukujula kwenkambu; ubude bendawo buncane, kukhulu ukuhlanekezela; buncane ubude be-focal, iba yinto ebucayi kakhulu ye-vignetting, enciphisa ukukhanya emaphethelweni okuphambuka.

Isixazululo:

Ibonisa ibanga elincane phakathi kwamaphoyinti angu-2 angabonwa isethi yamalensi ahlosiwe

0.61x ubude begagasi obusetshenzisiwe (λ) / NA = ukulungiswa (μ)

Indlela yokubala engenhla ingabala ukulungiswa, kodwa ayifaki ukuhlanekezela.

※ Ubude begagasi obusetshenzisiwe bungama-550nm

Incazelo:

Inombolo yemigqa emnyama nemhlophe ingabonakala phakathi no-1mm. Iyunithi (lp)/mm.

I-MTF (Umsebenzi Wokudluliswa Kwemodyuli)

I-MTF

Ukuhlanekezela:

Enye yezinkomba zokukala ukusebenza kwelensi ukuphambuka. Isho umugqa oqondile ngaphandle kwe-eksisi eyinhloko endizeni yesihloko, okuba ijika ngemva kokuthwetshulwa isistimu yokubona. Iphutha lokuthwebula lale sistimu yokubona libizwa ngokuthi ukuhlanekezela. Ukuhlanekezela okuphambene kuthinta kuphela i-geometry yesithombe, hhayi ukucija kwesithombe.

Imbobo kanye nenombolo F:

Ishidi le-lenticular idivayisi esetshenziselwa ukulawula inani lokukhanya elidlula ilensi, ngokuvamile ngaphakathi kwelensi. Sisebenzisa inani lika-F ukuveza usayizi wokuvula, njengokuthi f1.4, F2.0, F2.8, njll.

Imbobo kanye nenombolo F

Ukukhulisa i-Optical:

Ifomula esetshenziselwa ukubala isilinganiso sokukala esiyinhloko limi kanje: PMAG = usayizi wenzwa (mm) / indawo yokubuka (mm)

Bonisa ukukhuliswa

Ukukhulisa isibonisi kusetshenziswa kakhulu kumakroskopu. Ukukhulisa isibonisi sento elinganisiwe kuncike ezintweni ezintathu: ukukhuliswa kokubona kwelensi, usayizi we-chiphu yenzwa yekhamera yemboni (usayizi wendawo eqondiwe), kanye nosayizi wesibonisi.

Bonisa ukukhulisa = ukukhuliswa kwe-lens × usayizi wokubonisa × 25.4 / usayizi we-diagonal

Izigaba eziyinhloko zamalensi ezimboni

Ukwahlukanisa

•Ngobude be-focal: prime and zoom

•Ngembobo: indawo engaguquki kanye nembobo eguquguqukayo

•Ngesixhumi esibonakalayo: C interface, CS interface, F interface, njll.

•Ihlukaniswe ngokuphindaphinda: ilensi yokukhulisa engaguquki, ilensi yokusondeza eqhubekayo

•Amalensi abaluleke kakhulu avame ukusetshenziswa embonini yokubona umshini ngokuyinhloko ahlanganisa amalensi e-FA, amalensi ocingo kanye nezibonakhulu zezimboni, njll.

Amaphuzu asemqoka okufanele acatshangelwe ekukhetheni aumshini wokubona lens:

1. Inkambu yokubuka, ukukhuliswa kwe-optical kanye nebanga lokusebenza elifiswayo: Lapho sikhetha ilensi, sizokhetha ilensi enendawo yokubuka ethe ukukhudlwana kunento okufanele ikalwe, ukuze kube lula ukulawula ukunyakaza.

2. Ukujula kwezidingo zenkambu: Kumaphrojekthi adinga ukujula kwenkundla, sebenzisa indawo encane yokuvula imbobo ngangokunokwenzeka; lapho ukhetha ilensi enokukhuliswa, khetha ilensi enokwandiswa okuphansi kuze kufike lapho kuvunyelwa iphrojekthi. Uma izidingo zephrojekthi zidinga kakhulu, ngivame ukukhetha ilensi esezingeni eliphezulu enobubanzi obuphezulu benkambu.

3. Usayizi wenzwa nesixhumi esibonakalayo sekhamera: Isibonelo, ilensi engu-2/3″ isekela indawo enkulu yekhamera yezimboni engu-2/3″, ayikwazi ukusekela amakhamera wezimboni angaphezu kweyintshi elingu-1.

4. Indawo etholakalayo: Akunangqondo ukuthi amakhasimende ashintshe usayizi wesisetshenziswa uma uhlelo luzikhethela.