Cov khoom siv kho qhov muag tau siv thoob plaws hauv kev tsim thiab tsim khoom ntawm cov khoom siv lossis cov txheej txheem los qhia tias nws ua tau raws li qee qhov kev xav tau.Lawv muaj txiaj ntsig zoo rau ob qho laj thawj: ua ntej, lawv qhia qhov kev lees paub ntawm cov kev txwv tseem ceeb uas tswj hwm kev ua haujlwm ntawm lub cev;thib ob, lawv qhia txog cov peev txheej (xws li lub sijhawm thiab tus nqi) uas yuav tsum tau siv rau kev tsim khoom.Lub kaw lus kho qhov muag tuaj yeem raug kev txom nyem los ntawm qhov tsis muaj qhov tshwj xeeb lossis tshaj qhov tshwj xeeb, ob qho tib si tuaj yeem ua rau kev siv nyiaj tsis tsim nyog.Paralight Optics muab cov nqi kho qhov muag kom tau raws li koj qhov kev xav tau.
Txhawm rau kom nkag siab zoo dua ntawm cov khoom siv kho qhov muag, nws yog ib qho tseem ceeb kom paub tias lawv txhais li cas.Cov hauv qab no yog cov lus qhia luv luv ntawm cov lus qhia tshwj xeeb tshaj plaws ntawm yuav luag txhua yam khoom siv kho qhov muag.
Manufacturing Specifications
Txoj kab uas hla Tolerance
Txoj kab uas hla kam rau ntawm ib puag ncig kho qhov muag muab qhov kev lees paub ntawm qhov tseem ceeb rau txoj kab uas hla.Txoj kab uas hla ntawm qhov kam rau ua tsis muaj qhov cuam tshuam rau qhov kev ua tau zoo ntawm qhov kho qhov muag ntawm nws tus kheej, tab sis nws yog ib qho tseem ceeb heev uas yuav tsum tau txiav txim siab yog tias lub optic yuav tsum tau muab tso rau hauv txhua hom kev tuav.Piv txwv li, yog hais tias txoj kab uas hla ntawm ib tug optical lens deviates los ntawm nws nominal tus nqi, nws muaj peev xwm hais tias cov neeg kho tshuab axis yuav tsum tau tsiv los ntawm lub optical axis nyob rau hauv ib tug mounted los ua ke, yog li ua rau decenter.
Daim duab 1: Decentering ntawm Collimated Light
Qhov kev tsim tshwj xeeb no tuaj yeem sib txawv raws li qhov kev txawj thiab kev muaj peev xwm ntawm tus neeg tsim khoom tshwj xeeb.Paralight Optics tuaj yeem tsim cov lo ntsiab muag los ntawm txoj kab uas hla 0.5mm txog 500mm, kam rau ua kom ncav cuag qhov txwv ntawm +/- 0.001mm.
| Table 1: Manufacturing Tolerances rau txoj kab uas hla | |
| Txoj kab uas hla Tolerances | Qib Qib |
| +0.00/-0.10 hli | Hom |
| 0.00 /-0.050 hli | Precision |
| +0.000/-0.010 | Siab Precision |
Center Thickness kam rau ua
Qhov nruab nrab tuab ntawm cov khoom siv kho qhov muag, feem ntau yog cov lo ntsiab muag, yog cov khoom tuab ntawm cov khoom ntsuas ntawm qhov chaw.Qhov nruab nrab tuab yog ntsuas thoob plaws lub tshuab axis ntawm lub lens, txhais tau tias yog lub axis raws nraim ntawm nws cov npoo sab nrauv.Kev hloov pauv ntawm qhov nruab nrab tuab ntawm lub lens tuaj yeem cuam tshuam qhov kev ua haujlwm ntawm qhov muag vim qhov nruab nrab tuab, nrog rau lub vojvoog ntawm curvature, txiav txim siab txoj kev kho qhov muag ntev ntawm rays dhau los ntawm lub lens.
Daim duab 2: Daim duab rau CT, ET & FL
| Table 2: Manufacturing Tolerances rau Center Thickness | |
| Center Thickness Tolerances | Qib Qib |
| +/- 0.10 hli | Hom |
| +/- 0.050 hli | Precision |
| +/- 0.010 hli | Siab Precision |
Ntug Thickness Verses Center Thickness
Los ntawm cov piv txwv saum toj no ntawm daim duab qhia qhov nruab nrab tuab, tej zaum koj tau pom tias lub thickness ntawm lub lens txawv ntawm ntug mus rau qhov chaw ntawm lub optic.Pom tseeb, qhov no yog qhov ua haujlwm ntawm lub vojvoog ntawm curvature thiab sag.Plano-convex, biconvex thiab zoo meniscus lo ntsiab muag muaj ntau dua thickness ntawm lawv cov chaw tshaj li ntawm ntug.Rau plano-concave, biconcave thiab tsis zoo meniscus lo ntsiab muag, qhov nruab nrab tuab yog ib txwm nyias dua li ntug thickness.Optical designers feem ntau qhia ob qho tib si ntug thiab nruab nrab tuab ntawm lawv cov duab kos, ua siab ntev rau ib qho ntawm qhov ntev, thaum siv lwm qhov raws li qhov ntsuas qhov ntev.Nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias tsis muaj ib qho ntawm qhov ntev, nws tsis tuaj yeem pom qhov kawg ntawm lub lens.
Daim duab 3: Daim duab rau CE, ET, BEF thiab EFL
Ntug / Ntug Thickness Difference (ETD)
Ntub, qee zaum hu ua ETD lossis ETV (Edge Thickness Variation), yog ib lub tswv yim ncaj nraim kom nkag siab txog kev tsim lub lens thiab kev tsim khoom.Yeej, qhov kev qhia tshwj xeeb no tswj xyuas qhov sib npaug ntawm ob qhov chaw kho qhov muag ntawm lub lens rau ib leeg.Txhua qhov kev hloov pauv ntawm qhov sib npaug tuaj yeem ua rau lub teeb xa mus rau deviate los ntawm nws txoj kev, txij li lub hom phiaj yog tsom lossis sib faib lub teeb nyob rau hauv kev tswj hwm, wedge yog li qhia qhov tsis xav sib txawv hauv txoj kev teeb.Wedge tuaj yeem teev nyob rau hauv cov nqe lus ntawm kev sib txawv ntawm qhov sib txawv (qhov yuam kev hauv nruab nrab) ntawm ob qhov chaw xa tawm lossis lub cev kam rau ntawm ntug thickness variation, qhov no sawv cev rau misalignment ntawm nruab nrab ntawm lub tshuab thiab kho qhov muag axes ntawm lub lens.
Daim duab 4: Centering yuam kev
Sagitta (zeeg)
Radius ntawm curvature yog ncaj qha ntsig txog Sagitta, feem ntau hu ua Sag hauv kev lag luam kho qhov muag.Hauv cov ntsiab lus geometric, Sagitta sawv cev qhov kev ncua deb ntawm qhov nruab nrab ntawm qhov arc mus rau qhov chaw ntawm nws lub hauv paus.Hauv optics, Sag siv rau lub convex los yog concave curvature thiab sawv cev rau lub cev nyob deb ntawm lub vertex (siab tshaj plaws los yog qis tshaj point) taw tes raws tus nkhaus thiab qhov chaw nruab nrab ntawm ib kab kos perpendicular mus rau nkhaus ntawm ib ntug ntawm lub optic mus rau lwm yam.Daim duab hauv qab no qhia txog qhov pom ntawm Sag.
Daim duab 5: Daim duab ntawm Sag
Sag yog ib qho tseem ceeb vim hais tias nws muab qhov chaw nruab nrab rau lub vojvoog ntawm curvature, yog li tso cai rau cov fabricators kom raug lub vojvoog ntawm lub optic, nrog rau, tsim ob qho tib si nruab nrab thiab ntug thickness ntawm ib tug optic.Los ntawm kev paub lub vojvoog ntawm curvature, nrog rau, txoj kab uas hla ntawm ib qho optic, Sag tuaj yeem xam los ntawm cov qauv hauv qab no.
Qhov twg:
R = radius ntawm curvature
d = luas
Radius ntawm Curvature
Qhov tseem ceeb tshaj plaws ntawm lub lens yog lub vojvoog ntawm curvature, nws yog ib qho tseem ceeb thiab kev ua haujlwm tsis zoo ntawm lub ntsej muag kheej kheej, uas yuav tsum tau tswj kom zoo thaum tsim khoom.Lub vojvoog ntawm curvature txhais tau tias yog qhov kev ncua deb ntawm qhov chaw kho qhov muag lub vertex thiab qhov chaw ntawm curvature.Nws tuaj yeem ua tau zoo, xoom, lossis tsis zoo nyob ntawm seb qhov chaw puas yog convex, plano, lossis concave, hwm.
Paub txog tus nqi ntawm lub vojvoog ntawm curvature thiab nruab nrab tuab tso cai rau ib qho los txiav txim qhov ntev ntawm txoj kab hluav taws xob hla lub lens lossis daim iav, tab sis nws kuj tseem ua lub luag haujlwm tseem ceeb hauv kev txiav txim siab lub zog kho qhov muag ntawm qhov chaw, uas yog yuav ua li cas kho qhov muag. system converges los yog diverges teeb.Optical designers paub qhov txawv ntawm qhov ntev thiab luv focal lengths los ntawm kev piav qhia txog tus nqi ntawm optical zog ntawm lawv lo ntsiab muag.Qhov ntev focal ntev, cov uas khoov lub teeb sai dua thiab yog li ua kom pom tseeb hauv qhov luv luv ntawm qhov nruab nrab ntawm lub lens tau hais tias muaj lub zog kho qhov muag ntau dua, thaum cov uas tsom teeb pom kev qeeb qeeb tau piav qhia tias muaj lub zog kho qhov muag tsawg dua.Lub vojvoog ntawm curvature txhais lub focal ntev ntawm lub lens, ib txoj hauv kev yooj yim los xam qhov ntev ntawm lub lo ntsiab muag nyias yog muab los ntawm Thin Lens Approximation ntawm Lens-Maker's Formula.Thov nco ntsoov, cov qauv no tsuas yog siv tau rau cov lo ntsiab muag uas nws tuab me me thaum piv rau qhov ntsuas focal ntev.
Qhov twg:
f = focal ntev
n = refractive index ntawm lens khoom
r1 = lub vojvoog ntawm curvature rau qhov chaw ze tshaj plaws rau qhov teeb meem teeb meem
r2 = lub vojvoog ntawm curvature rau saum npoo deb ntawm qhov teeb meem teeb meem
Txhawm rau tswj txhua qhov kev hloov pauv hauv qhov ntev focal ntev, opticians yog li yuav tsum tau txhais lub vojvoog kam rau ua.Thawj txoj kev yog siv cov cuab yeej siv yooj yim, piv txwv li, lub vojvoog yuav raug txhais ua 100 +/- 0.1mm.Hauv qhov xwm txheej zoo li no, lub vojvoog tuaj yeem sib txawv ntawm 99.9mm thiab 100.1mm.Qhov thib ob txoj kev yog siv lub vojvoog kam rau ua raws li feem pua.Siv tib lub vojvoog 100 hli, tus kws kho qhov muag yuav qhia tau tias qhov curvature yuav tsis txawv ntau tshaj 0.5%, txhais tau tias lub vojvoog yuav tsum poob ntawm 99.5mm thiab 100.5mm.Qhov thib peb txoj kev yog los txhais ib tug kam rau ua nyob rau hauv focal ntev, feem ntau nyob rau hauv cov nqe lus ntawm feem pua.Piv txwv li, ib lub lens nrog 500mm focal ntev yuav muaj ib tug +/-1% kam rau ua uas txhais mus rau 495mm rau 505mm.Txuas cov focal lengths rau hauv qhov sib npaug ntawm lub lens nyias tso cai rau cov neeg tsim khoom kom tau txais cov neeg kho tshuab kam rau ntawm lub vojvoog ntawm curvature.
Daim duab 6: Radius kam rau ua ntawm qhov chaw ntawm Curvature
| Table 3: Manufacturing Tolerances for Radius of Curvature | |
| Radius ntawm Curvature Tolerances | Qib Qib |
| +/- 0.5 hli | Hom |
| +/- 0.1% | Precision |
| +/- 0.01% | Siab Precision |
Hauv kev xyaum, optical fabricators siv ntau yam sib txawv ntawm cov cuab yeej kom tsim nyog lub vojvoog ntawm curvature ntawm lub lens.Thawj yog lub nplhaib spherometer txuas nrog lub ntsuas ntsuas.Los ntawm kev sib piv qhov sib txawv ntawm curvature ntawm lub predefined "nplhaib" thiab optics 'voj voog ntawm curvature, fabricators tuaj yeem txiav txim siab seb qhov kev kho ntxiv yog tsim nyog los ua kom tiav lub vojvoog tsim nyog.Kuj tseem muaj ntau lub spherometers digital nyob rau hauv kev ua lag luam kom muaj qhov tseeb.Lwm txoj hauv kev muaj tseeb yog qhov kev sib cuag nrog profileometer uas siv cov kev sojntsuam los ntsuas lub cev ntawm lub lens.Thaum kawg, txoj kev tsis sib cuag ntawm interferometry tuaj yeem siv los tsim cov qauv fringe uas muaj peev xwm txheeb xyuas qhov kev ncua deb ntawm lub cev mus rau nws qhov chaw sib xws ntawm curvature.
Qhov chaw
Centration kuj paub los ntawm qhov chaw los yog qhov chaw.Raws li lub npe implies, centration tswj qhov tseeb qhov chaw ntawm lub vojvoog ntawm curvature.Ib lub vojvoog zoo kawg nkaus yuav ua kom lub vertex (center) ntawm nws curvature mus rau sab nraud ntawm lub substrate.Piv txwv li, lub hom phiaj ntawm lub lens nrog ib txoj kab uas hla ntawm 20mm yuav muaj lub vojvoog zoo kawg nkaus yog tias lub vertex yog linearly positioned raws nraim 10mm los ntawm ib qho taw tes raws li sab nraud txoj kab uas hla.Nws yog li ntawd ua raws li cov khoom siv kho qhov muag yuav tsum coj mus rau hauv tus account ob lub X thiab Y axis thaum tswj centration raws li qhia hauv qab no.
Daim duab 7: Daim duab ntawm Decentering
Tus nqi ntawm decenter nyob rau hauv ib lub lens yog lub cev hloov chaw ntawm cov neeg kho tshuab axis los ntawm optical axis.Lub tshuab axis ntawm lub lens tsuas yog qhov geometric axis ntawm lub lens thiab txhais los ntawm nws lub tog raj kheej sab nraud.Lub optical axis ntawm lub lens yog txhais los ntawm qhov chaw kho qhov muag thiab yog cov kab uas txuas cov chaw ntawm curvature ntawm qhov chaw.
Daim duab 8: Daim duab ntawm Decentering
| Table 4: Manufacturing tolerances for Centration | |
| Qhov chaw | Qib Qib |
| +/- 5 Arcminutes | Hom |
| +/- 3 Arcminutes | Precision |
| +/- 30 Arcseconds | Siab Precision |
Parallelism
Parallelism piav qhia txog qhov sib npaug ntawm ob qhov chaw sib raug zoo li cas.Nws yog ib qho tseem ceeb hauv kev qhia txog cov khoom xws li qhov rais thiab cov polarizers qhov chaw sib npaug yog qhov zoo tagnrho rau kev ua haujlwm ntawm lub cev vim tias lawv txo qis kev cuam tshuam uas tuaj yeem cuam tshuam cov duab lossis lub teeb pom kev zoo.Kev kam rau ua ib yam li ntawm 5 arcminutes mus rau ob peb arcseconds raws li hauv qab no:
| Table 5: Kev tsim khoom kam rau ua rau Parallelism | |
| Parallelism Tolerances | Qib Qib |
| +/- 5 Arcminutes | Hom |
| +/- 3 Arcminutes | Precision |
| +/- 30 Arcseconds | Siab Precision |
Lub kaum sab xis
Hauv cov khoom xws li prisms thiab beamsplitters, cov ces kaum ntawm qhov chaw yog qhov tseem ceeb rau kev ua haujlwm ntawm optic.Qhov kev kam rau lub kaum sab xis no feem ntau ntsuas siv lub autocollimator los ua ke, uas nws lub teeb qhov system emits collimated lub teeb.Lub autocollimator yog tig rau ntawm qhov chaw ntawm lub qhov muag kom txog rau thaum qhov tshwm sim Fresnel reflection rov qab rau hauv nws ua ib qho chaw nyob rau sab saum toj ntawm qhov chaw nyob rau hauv kev tshuaj xyuas.Qhov no ua pov thawj tias cov nqaj sib tsoo tau tsoo lub npoo ntawm qhov xwm txheej ib txwm muaj.Tag nrho cov autocollimator sib dhos yog ces tig ib ncig ntawm lub optic mus rau qhov chaw kho qhov muag tom ntej thiab tib txoj kev rov ua dua.Daim duab 3 qhia tau hais tias ib txwm autocollimator teeb ntsuas lub kaum sab xis.Qhov sib txawv ntawm lub kaum sab xis ntawm ob txoj haujlwm ntsuas yog siv los xam qhov kam rau ntawm ob qhov chaw kho qhov muag.Lub kaum sab xis tuaj yeem tuav tau rau kev ua siab ntev ntawm ob peb arcminutes txhua txoj kev mus rau ob peb arcseconds.
Daim duab 9: Autocollimator teeb ntsuas lub kaum sab xis
Bevel
Substrate ces kaum tuaj yeem yooj yim heev, yog li ntawd, nws yog ib qho tseem ceeb los tiv thaiv lawv thaum tuav lossis mounting ib qho khoom siv kho qhov muag.Txoj hauv kev zoo tshaj plaws los tiv thaiv cov ces kaum no yog bevel cov npoo.Bevels ua haujlwm tiv thaiv chamfers thiab tiv thaiv ntug chips.Thov saib cov lus hauv qab no 5 rau lub bevel spec rau txawv diameters.
| Table 6: Kev tsim khoom txwv rau qhov siab tshaj plaws lub ntsej muag dav ntawm Bevel | |
| Txoj kab uas hla | Lub ntsej muag siab tshaj plaws ntawm Bevel |
| 3.00-5.00 hli | 0.25 hli |
| 25.41mm-50.00 hli | 0.3mm ib |
| 50.01mm-75.00 hli | 0.4mm ib |
Clear Aperture
Clear aperture tswj hwm qhov ib feem ntawm lub lens yuav tsum ua raws li tag nrho cov lus piav qhia saum toj no.Nws yog txhais raws li txoj kab uas hla lossis qhov loj ntawm ib qho khoom siv kho qhov muag los yog qhov feem pua uas yuav tsum tau ua raws li cov lus qhia tshwj xeeb, sab nraud ntawm nws, fabricators tsis lav qhov optic yuav ua raws li cov lus qhia tshwj xeeb.Piv txwv li, ib lub lens yuav muaj ib txoj kab uas hla ntawm 100mm thiab ib tug ntshiab aperture teev li 95mm los yog 95%.Ob txoj kev yog txais tau tab sis nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov raws li txoj cai dav dav, qhov ntau dua qhov tseeb aperture, qhov nyuaj dua qhov optic yog tsim vim nws thawb cov yam ntxwv uas yuav tsum tau ua kom ze thiab ze rau lub cev ntawm lub optic.
Vim muaj kev txwv kev tsim khoom, nws yog qhov tsis yooj yim sua kom tsim tau qhov tseeb aperture raws nraim qhov sib npaug ntawm txoj kab uas hla, lossis qhov ntev ntawm qhov dav, ntawm ib qho optic.
Daim duab 10: Daim duab qhia meej meej Aperture thiab txoj kab uas hla ntawm lub lens
| Table 7: Clear Aperture Tolerances | |
| Txoj kab uas hla | Clear Aperture |
| 3.00mm-10.00 hli | 90% ntawm txoj kab uas hla |
| 10.01mm-50.00 hli | Txoj kab uas hla - 1 mm |
| ≥ 50.01mm | Txoj kab uas hla - 1.5mm |
Yog xav paub ntxiv nyob rau hauv-tob specification, thov mus saib peb catalog optics los yog featured khoom.
Post lub sij hawm: Apr-20-2023