Optical Lenses-Convex Thiab Concave Lenses
Product Description
Optical nyias Lens - Lub lens uas lub thickness ntawm qhov nruab nrab yog loj piv rau lub radii ntawm curvature ntawm nws ob sab. Thaum ntxov, lub koob yees duab tsuas yog nruab nrog lub lens convex, yog li nws tau hu ua "ib lub lens". Nrog txoj kev loj hlob ntawm kev tshawb fawb thiab thev naus laus zis, cov lo ntsiab muag niaj hnub no muaj ob peb lub ntsej muag thiab lub ntsej muag nrog cov ntaub ntawv sib txawv thiab ua haujlwm los tsim lub lens converging, uas yog hu ua "compound lens". Lub concave lens nyob rau hauv lub compound lens plays lub luag hauj lwm ntawm kho ntau yam aberrations.
Nta
Kho qhov muag iav muaj lub siab transparency, purity, tsis muaj xim, zoo nkauj zoo nkauj, thiab zoo refractive zog, yog li nws yog lub ntsiab raw khoom rau lub lens ntau lawm. Vim qhov sib txawv ntawm cov tshuaj muaj pes tsawg leeg thiab refractive index, optical iav muaj:
● Flint iav - lead oxide yog ntxiv rau cov iav muaj pes tsawg leeg kom ua kom lub ntsej muag refractive index.
● Yas iav-ua los ntawm kev ntxiv sodium oxide thiab calcium oxide rau iav muaj pes tsawg leeg kom txo tau nws cov refractive index.
● Lanthanum crown iav - qhov pom ntau yam, nws muaj cov yam ntxwv zoo heev ntawm qhov siab refractive index thiab qis dispersion tus nqi, uas muab tej yam kev mob rau cov creation ntawm loj-caliber advanced lo ntsiab muag.
Cov ntsiab cai
Cov iav los yog yas siv nyob rau hauv lub luminaire los hloov cov kev taw qhia ntawm lub teeb los yog tswj lub teeb tis.
Lenses yog cov khoom siv kho qhov muag yooj yim tshaj plaws uas ua rau lub tshuab tsom iav qhov muag. Cov khoom xws li lub hom phiaj lo ntsiab muag, eyepieces, thiab condensers yog tsim los ntawm ib leeg lossis ntau lub lo ntsiab muag. Raws li lawv cov duab, lawv tuaj yeem muab faib ua ob pawg: convex lo ntsiab muag (zoo lo ntsiab muag) thiab concave lo ntsiab muag (tsis zoo lo ntsiab muag).
Thaum lub teeb ntawm lub teeb sib npaug mus rau qhov tseem ceeb optical axis dhau los ntawm lub lens convex thiab sib tshuam ntawm ib qho chaw, qhov taw tes no yog hu ua "focus", thiab lub dav hlau dhau los ntawm kev ua kom pom tseeb thiab perpendicular mus rau optical axis hu ua "focal plane. ". Muaj ob lub ntsiab lus focal, lub focal point nyob rau hauv cov khoom qhov chaw yog hu ua "object focal point", thiab lub focal dav hlau muaj hu ua "object focal plane"; conversely, lub focal point nyob rau hauv daim duab qhov chaw yog hu ua "duab focal point". Lub dav hlau focal ntawm hu ua "duab square focal dav hlau".
