Video: Parfocal tsom iav yog dab tsi?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
A. Parfocal txhais tau tias cov tsom iav yog binocular. Parfocal txhais tau tias thaum ib lub hom phiaj tsom iav tsom mus rau lwm qhov, lub hom phiaj tseem yuav tsom mus rau.
Tom qab ntawd, qhov sib txawv ntawm Parfocal thiab Parcentric yog dab tsi?
Qhov no txhais tau hais tias qhov tsom xam rau txhua lub lens zoo sib xws. ex) Microscopes tau tsim los ua parfocal cov . Qhov no txhais tau hais tias ib yam khoom hauv qhov nruab nrab ntawm qhov kev pom ntawm ib qho magnification yog hauv qhov nruab nrab ntawm qhov kev pom ntawm ib qho ntawm lwm qhov magnifications. ex) Microscopes tau tsim los ua sib npaug.
Kuj Paub, peb yam dab tsi yuav tsum tau muab nrog ib daim duab? Lub npe ntawm cov hnoos qeev, lub hom phiaj uas tau siv, thiab kwv yees qhov loj me ntawm cov hnoos qeev.
Ib sab saum toj no, Parfocal ntev yog dab tsi?
Cov parfocal ntev yog qhov kev ncua deb ntawm lub xub pwg nyom ntawm lub hom phiaj mus rau lub dav hlau focal. Los ntawm stacking ob qhov sib tw 15 mm adapters ua ke, tus neeg siv tuaj yeem txuas ntxiv lub hom phiaj nrog a parfocal ntev ntawm 45 mm rau ib qho nrog a parfocal ntev ua 75mm.
Kev nthuav dav tag nrho yog dab tsi?
Tag nrho magnification yog thaum cov khoom raug saib loj rau nws qhov kev txwv siab tshaj plaws. Qhov no tshwm sim los ntawm kev siv cov tsom iav qhov muag thiab tsom iav qhov muag.
Pom zoo:
Nws txhais li cas yog tias lub tshuab tsom iav yog Parfocal thiab Parcentered?
Parcentered: Ib lub tshuab tsom iav uas yog "parcentered" yog ib qho uas cov khoom hauv nruab nrab ntawm qhov pom yuav nyob hauv nruab nrab thaum lub hom phiaj tau tig. Parfocal: Lub tsom iav uas yog "parfocal" yog ib qho uas, yog tias nws yog tsom mus rau ib lub hom phiaj, thaum lub hom phiaj tig, yuav nyob twj ywm (feem ntau) hauv kev tsom
Dab tsi yog tsom iav tsom iav?
Kev tsom me me tshwj xeeb yog cov txheej txheem kev yees duab uas tsis nthuav dav uas tso cai rau koj kom pom kev thiab txheeb xyuas lub qhov muag qhov muag. Siv lub computer-pab morphometry, niaj hnub specular tsom tsom xam qhov loj me, cov duab thiab cov pejxeem ntawm cov endothelial cells
Kuv puas tuaj yeem muab kuv cov iav tsom iav los ua tsom iav?
Yog, koj tuaj yeem ua tau. Koj cov tsom iav RX ib txwm tuaj yeem pleev xim rau ib qho xim uas koj xav tau thiab ua rau koj ib khub tsom iav tsom iav. Tsuas yog coj koj lub tsom iav mus rau lub khw muag khoom kho qhov muag hauv cheeb tsam thiab ua rau koj cov iav tsom iav. Nws yog qhov ua tau rau koj kom koj cov iav tsom iav tsis tu ncua
Vim li cas qhov sib txawv hauv qhov tsom iav tsom iav tseem ceeb heev?
Qhov sib piv: Lub tshuab tsom me me yog ua kom lub ntiaj teb me me pom rau tib neeg qhov muag. Txhawm rau ua qhov no kom tiav, tib neeg lub qhov muag yuav tsum muaj peev xwm pom qhov txawv ntawm ib qho piv txwv los ntawm nws ib puag ncig. Qhov sib piv zoo dua, nws yooj yim dua yog pom qhov sib txawv hauv cov duab
Cov iav tsom iav tiv thaiv ua dab tsi?
Anti-fatigue lo ntsiab muag yog tsim los kho cov tsos mob. Sab saud ntawm lub lens muab kev kho qhov muag tsis pom kev zoo ib yam (ib yam li kev saib ib leeg ib leeg nkaus xwb), tom qab ntawd muaj qhov hloov pauv me me ntawm lub zog mus rau ntawm lub hauv paus kom txo tau qhov nyuaj ntawm kev ua haujlwm ze