SETO 1.499 SEMI TOM QAB IB VAJ LUAG
Kev qhia tshwj xeeb
| 1.499 Semi-ua tiav Optical lens | |
| Qauv: | 1.499 lub lens optical |
| Qhov chaw ntawm keeb kwm: | Jiangsu, Suav |
| Hom: | Tsa |
| Cov Khoom Taw Qhia: | Tsiaj |
| Dabtsi yog khoov | 50b / 200b / 400b / 600B / 800B |
| Rooj mov | Semi-tiav lawm |
| Ntses xim | Meej |
| Refacking Index: | 1.499 |
| Inch: | 70/65 |
| Abbe tus nqi: | 58 |
| Kev Nqus Tshwj Xeeb: | 1.32 |
| Hloov chaw: | > 97% |
| Kev Xaiv Txheej Txheem: | UC / HC / HMC |
| Txheej xim | Xim ntsuab |
Khoom nta
1) Qhov zoo ntawm 1.499
①it cov pheej yig, vim nws tau nyob ib puag ncig 70 xyoo. Kev hais txog kev siv tau, nws muaj qhov zoo, tsim nyog du ua si, thiab me ntsis distortion ntawm cov npoo ntawm lub lens
Qhov zoo tshaj plaws ntawm CR39 lo ntsiab muag dhau cov iav lo ntsiab muag dhau los yog lub teeb hnyav, thiab zoo dua tawg ntxiv. Qhov hnyav qis uas tso cai rau cov cuab yeej muag muag rau cov ntsiab muag loj dua, txij li CR39 ntau sib dua hauv qhov hnyav.
Atalthe tsis yog Cr39 muaj kev tawg zoo dua li cov iav lo ntsiab muag, nws tseem tuaj yeem tawg hauv qab muaj kev cuam tshuam muaj zog. Vim li no, ntau dua thiab ntau dua cov kws tshaj lij kho qhov muag tau tsiv mus rau cov ntaub ntawv lens tshiab (polycarbonate thiab lwm tus, yuav luag tsis yooj yim sua teb.
④FAR sib dua dua lub iav lens
⑤A Ua pov thawj zoo nyob hauv ntau yam
⑥exists hauv txhua tus qauv tsim thiab muaj nuj nqis-ntxiv kev kho mob
⑦Hub lub zog nrhiav ib qho yooj yim, exomonomical lens
2) rho tawm thiab ntxiv rau cov lenses ua tiav
①lenses nrog ntau lub powerfic sib txawv tuaj yeem tsim los ntawm ib lub lens ib nrab ua tiav. Lub curvature ntawm sab pem hauv ntej thiab nram qab taw qhia qhia seb lub lens yuav muaj qhov ntxiv lossis rho tawm lub zog.
②SEMI-Tiav lens yog qhov seem tsis tau siv los tsim cov lens rx feem ntau raws li tus neeg mob cov tshuaj. Cov tshuaj sib txawv uas muaj peev xwm thov rau cov lens hom lossis puag ncig.
③rather dua li cov tshuaj pleev ib ce zoo nkauj, ib nrab ua tiav ntau ntxiv txog qhov zoo sab hauv, tshwj xeeb tshaj yog rau cov kev sib tw tsis muaj cov lens free.
3) HC, HMC thiab SHC li cas?
| Tawv tawv | A txheej / Txuj Ci Ntau Txheej | Super Hydrophobic Txheej |
| ua rau lub lens tsis muaj zog thiab ua rau muaj kev puas tsuaj tsis kam | nce cov kev sib txuas ntawm lub lens thiab txo qhov chaw sib txawv | Ua rau lub lens waterproof, cov tshuaj tua kab mob, tiv thaiv plam thiab roj tsis kam |
Daim ntawv muaj cai
Peb Lub Hoobkas
