Hloov lub Xyoo 1980s Lub Koob Yees Duab Rau Hauv Lub Sijhawm Tiag Polarimetric Imager: 14 Kauj Ruam (nrog Duab)

2024 Tus sau: John Day | [email protected]. Kawg hloov kho: 2024-01-30 09:29

Polarimetric imaging muaj txoj hauv kev los txhim kho daim ntawv thov hloov pauv kev ua si thoob plaws ntau qhov chaw-hla txhua txoj hauv kev los ntawm kev saib xyuas ib puag ncig thiab tshuaj kho mob mus rau kev nyab xeeb thiab kev siv tshuaj tiv thaiv kev ua phem. Txawm li cas los xij, tus nqi siab heev ntawm kev lag luam lub koob yees duab polarimetric tau cuam tshuam kev tshawb fawb thiab kev txhim kho ntawm kev siv duab polarimetric. Daim ntawv no nthuav qhia cov lus qhia ntxaws txog kev hloov pauv ntawm xyoo 1980s-lub sijhawm, 3-raj xim lub koob yees duab mus rau hauv lub sijhawm tiag tiag polarimetric imager. Lub koob yees duab siv los ua lub hauv paus rau qhov kev hloov pauv no tau nthuav dav muaj nyob hauv kev ua lag luam tshaj li ntawm $ 50. Cov pov tseg-rau-cov khoom muaj nqis Qhia yuav qhia koj yuav ua li cas hloov lub koob yees duab uas tsim nyog tsuas yog txhawb nqa mus rau hauv cov cuab yeej siv tshawb fawb muaj txiaj ntsig, cov khoom lag luam uas yuav muaj nqis ntau txhiab daus las.

Koj yuav xav tau cov khoom hauv qab no los ua qhov kev hloov pauv no:

• Ua haujlwm tshaj JVC KY-1900 lub koob yees duab (qauv KY-2000 thiab KY-2700 zoo ib yam li KY-1900 thiab tseem yuav haum)
• .425.4mm wideband 70T/30R beamsplitter (piv txwv li Thorlabs BSS10)
• .425.4mm wideband 50/50 beamsplitter (piv txwv li Thorlabs BSW10)
• 3D-luam tawm beamsplitter adapter rings
• Daim ntawv ntawm cov yas yas (piv txwv li Edmund Optics 86-188)

Kauj Ruam 1: Nkag Siab Kev Pom Duab Polarimetric

Lub teeb nthwv dej yog qhov tshwj xeeb los ntawm nws lub nthwv dej, uas peb pom tias yog ib cheeb tsam xim; nws qhov dav, uas peb pom tias yog qib siv zog; thiab lub kaum sab xis uas nws oscillates nrog kev hwm rau tus qauv siv. Qhov ntsuas ntsuas kawg no yog hu ua nthwv dej "Lub Kaum ntawm Kev Ncaj Ncees", thiab yog tus yam ntxwv ntawm lub teeb uas tib neeg qhov muag tsis tuaj yeem sib txawv. Txawm li cas los xij, qhov sib txawv ntawm lub teeb nqa cov ntaub ntawv nthuav qhia txog peb qhov pom ib puag ncig, thiab qee cov tsiaj muaj peev xwm pom nws thiab tso siab rau qhov kev nkag siab no rau kev taw qhia thiab kev muaj sia nyob.

Cov ncauj lus kom ntxaws, thiab nkag siab yooj yim piav qhia ntawm polarimetric imaging thiab nws daim ntawv thov muaj nyob hauv kuv phau ntawv dawb ntawm DOLPi polarimetric koob yees duab muaj nyob ntawm:

www.diyphysics.com/wp-content/uploads/2015/10/DOLPi_Polarimetric_Camera_D_Prutchi_2015_v5.pdf thiab nws nthuav tawm hauv YouTube ntawm:

Kauj Ruam 2: Yuav thiab Ua Raws Lub Koob Yees Duab

KY-1900 tau tshaj tawm ua lub koob yees duab xim-qib kws tshaj lij nyob rau xyoo 70's. Nws yog ib qho ntawm ob peb tus qauv uas yuav tsum tau ua nrog lub yas yas lub cev, ua rau nws txawv heev, thiab cim rau kev ua haujlwm siab kawg rau cov kws yees duab. Rov qab rau xyoo 1982, lub koob yees duab no muag rau ib puag ncig $ 9, 000.

Hnub no, koj yuav tsum muaj peev xwm nrhiav tau ib qho hauv kev ua lag luam tshaj li ntawm $ 50. KY-1900 tau tsim ua zoo li lub tank, yog li yuav muaj txiaj ntsig zoo uas nws yuav ua haujlwm tau zoo yog tias nws zoo nkauj zoo nkauj. Tsuas yog txuas nws rau NTSC xim saib thiab muab nws nrog 12VDC (lub koob yees duab rub ncig 1.7A).

Ua ntej txuas ntxiv nrog kev hloov kho, xyuas kom tseeb tias lub koob yees duab tau ua haujlwm zoo thiab ua tau zoo. Siv cov lus qhia uas tau hais hauv Tshooj II ntawm txoj haujlwm phau ntawv dawb txhawm rau kho koj lub koob yees duab thiab xyuas tias nws ua haujlwm raug.

Kauj Ruam 3: Nkag Mus Rau Lub Rooj Sib Tham Kho Qhov Muag

Thawj kauj ruam hauv kev hloov pauv yog nkag mus rau lub koob yees duab kho qhov muag sib dhos, uas cuam tshuam nrog cov hauv qab no:

• Sib cais lub koob yees duab sab laug
• Tshem tawm DF luam tawm pawg thawj coj saib
• Tua tawm daim ntawv cais yas uas txuas nrog daim kab xev ob tog rau qhov sib dhos kho qhov muag sab nrauv npog phaj

Kauj Ruam 4: Qhib Lub Rooj Sib Tham Kho Qhov Muag

Pry tawm sab hauv kho qhov muag sib dhos npog phaj. Cov phaj no yog lo rau lub rooj sib txoos. Lub phaj yuav tsis rov siv dua, yog li tsis txhob txhawj xeeb txog qhov cuam tshuam nws. Txawm li cas los xij, ceev faj kom tsis txhob ua kom puas cov khoom siv kho qhov muag sab hauv.

Cov kab hauv qab ntawm daim duab qhia pom kev sib dhos kho qhov muag ntawm JVC KY-1900 lub koob yees duab. Qhov teeb meem dhau los ntawm Thawj Lub Teeb Lens tau muab faib ua peb daim duab xim los ntawm dichroic beamsplitters ua ntej lawv raug xa mus rau lawv cov raj Saticon ntawm ob txoj kev xa tawm lo ntsiab muag. Kev hloov kho mus rau lub sijhawm tiag tiag polarimetric kev xav cuam tshuam nrog kev hloov pauv qhov qub dichroic beamsplitters ntawm Dichroic Beamsplitter Sib dhos los ntawm cov dav dav beamsplitters, tshem tawm cov xim lim lim hauv ob Qhov Kev Sib Txuas Lo ntsiab muag, thiab ntxiv kev tshuaj xyuas polarization.

Kauj Ruam 5: Tshem Dichroic Beamsplitter Los Ua Ke

Lub Rooj Sib Tham Beamsplitter tau tuav nrog peb tus ntsia hlau, ib qho los ntawm sab xub ntiag thiab ob sab tom qab. Xws li, lub koob yees duab sab xis npog, PCB, thiab zaj duab xis yas yuav tsum tau muab tshem tawm kom ua tau yooj yim.

Kauj Ruam 6: 3D-Printing Beamsplitter Adapter Rings

Dichroic beamsplitters xub siv hauv KY-1900 lub koob yees duab muaj qhov tsis yog txheej txheem, yog li kuv txiav txim siab siv 1 "-diameter wideband phaj beamsplitters rau kev hloov kho. Kuv tus phooj ywg thiab cov npoj yaig Jason Meyers tau tsim thiab 3D-luam tawm lub nplhaib tuav kom tuav tau 1 "beamsplitters nyob rau hauv qhov chaw. CAD thiab 3D-luam ntawv cov ntaub ntawv muaj nyob ntawm DropBox no.

Kauj Ruam 7: Hloov Dichroic Beamsplitters los ntawm Wideband Beamsplitters

Cov kauj ruam tom ntej hauv cov txheej txheem hloov pauv yog hloov lub dichroic beamsplitters los ntawm dav band beamsplitters. Cov duab yuav tsum muaj ntau dua lossis tsawg dua sib faib ua peb daim duab, yog li thawj kab teeb yuav tsum muaj kev cuam tshuam ib puag ncig 33.33% ntawm qhov teeb meem tshwm sim, thaum tso cai 66.66% ntawm lub teeb mus rau lub teeb thib ob uas yuav tsum tau faib ua ntu no tusyees Kuv siv cov kab hauv qab no:

• .425.4mm wideband 70T/30R beamsplitter (Thorlabs BSS10)
• .425.4mm wideband 50/50 beamsplitter (Thorlabs BSW10)

Cov dav dav kab teeb nyob rau hauv cov nplhaib tuav yuav tsum tau teeb tsa hauv kev sib dhos, thiab hloov kho Beamsplitter Sib dhos tuaj yeem raug teeb tsa rov qab rau hauv qhov chaw. Ib ntus txuas cov phiajcim hauv Circuit Court. Ua kom ntseeg tau tias tsis muaj ib qho luv luv tiv thaiv qhov nthuav tawm ntawm kev sib dhos kho qhov muag, txhawb lub koob yees duab. Tsuas yog kev hloov me me ntawm kab rov tav/ntsug potentiometers yuav tsum xav tau kom mus txog qhov sib luag yog tias koj tso lub beamsplitters raug. Koj yuav pom tias daim duab tseem nyob hauv cov xim, txawm hais tias ntxuav me ntsis hauv kev sib piv rau daim duab qub. Cov duab tseem pom nyob rau hauv cov xim vim tias muaj cov ntxaij lim dej muaj zog heev hauv Secondary Relay Lenses uas yuav tsum tau muab tshem tawm.

Kauj Ruam 8: Nkag Mus Rau Qhov Teeb Meem Thib Ob

Tshem Tawm Qhov Tseeb Qhov Tseeb Thib Ob (uas yog JVC lub npe rau lawv) los ntawm kev sib dhos kho qhov muag yuav siv qee qhov kev tshem tawm ntxiv ntawm lub koob yees duab. Qhov no yog vim tias cov duab khaws cov raj yuav tsum tau muab tshem tawm ua ntej Lub Teeb Tsom Teeb Duab thib ob tuaj yeem tshem tawm.

Pib los ntawm kev tshem tawm thiab tshem tawm cov ntawv luam tawm los ntawm cov kab sib dhos. Tom qab ntawd tshem lub nraub qaum ntawm lub koob yees duab. Cov raj sib dhos tuaj yeem rub tawm ntawm lub raj tsev ntawm lub khoos phis tawj sib dhos, muab kev nkag mus rau Thib Ob Relay Lenses.

Kauj Ruam 9: Tshem Tawm thiab Tshem Tawm Qhov Tseeb Thib Ob Relay (Ib zaug ib zaug!)

Qhov Tsom iav Thib Ob Relay tau tuav nyob rau hauv qhov chaw los ntawm qhov zoo zais, cov teeb me me nkag tau los ntawm sab xis ntawm kev kho qhov muag sib dhos. Thaum cov teeb tsa tau qhib, rub tawm Qhov Thib Ob Relay Lens uas koj yuav mus ua haujlwm. Qhwv ob peb txheej ntawm kab xev hluav taws xob tuab hla ob sab ntawm lub raj raj kho qhov muag thiab qhib nws siv cov yas dhos.

Kauj Ruam 10: Tshem Tawm Cov Xim Lim thiab Thib Ob Relay Lens Reassembly

Cov lim xim yuav tsum tau muab tshem tawm los ntawm kev tshem tawm lub nplhaib tuav nrog siv tus ciaj ntswj los yog tus ntswj taub hau heev. Tom qab tshem lub lim, yooj yim rov ua dua lub lens thiab ntiv tes nruj.

Tshem tawm cov lim xim hloov pauv lub focal point ntawm Secondary Relay Lens, yog li nws yuav tsum tsis txhob rov ua dua txhua txoj hauv kev rau hauv kev sib dhos kho qhov muag. Hloov chaw, Hloov Kho Qhov Ris Tsuaj Secondary Relay Lenses yuav tsum tawm tsuas yog li 2.5mm.

Lub koob yees duab tuaj yeem rov ua dua tau tom qab kev teeb tsa thiab nyab xeeb nrog teeb tsa cov ntsia hlau tag nrho cov kev hloov kho Secondary Relay Lenses. Tawm ntawm lub rooj sib dhos kho qhov muag tau yooj yim, thiab tsuas yog txuas DF pawg thawj coj saib ib ntus, ua kom ntseeg tau tias nws tsis luv-Circuit nrog kho qhov muag sib dhos.

Kauj Ruam 11: Txhim Kho Lub Koob Yees Duab

Tam sim no yog lub sijhawm los kho lub koob yees duab kom zoo zoo kom nws tsim cov duab dub thiab dawb zoo kawg nkaus. Qee qib ntawm cov xim sib txawv yuav pom ib txwm vim tias Qhov Sib Thib Thib Ob Relay Lenses tau tsim los rau qhov nqaim nqaim ntawm cov nthwv dej, thiab tam sim no tau siv ntau dua qhov dav ntawm qhov pom pom. Qhov fringing yog qhov tshwj xeeb tshaj yog pom ntawm ntug ntawm daim duab thaum rub tawm txhua txoj hauv kev rov qab, tab sis kev tso npe ncaj ncees tuaj yeem ua tiav los ntawm kev ua siab ntev ua raws cov txheej txheem tau teev tseg hauv Tshooj II ntawm txoj haujlwm phau ntawv dawb.

Kauj Ruam 12: Ua Polarization Analyzer Filters

Txiav peb 1.42 "× 1.42" squares tawm ntawm daim ntawv polarization. Kuv siv Edmund Optics 86-188 150 x 150mm, 0.75mm Thickness, Polarizing Laminated Film. Kuv xaiv cov yeeb yaj kiab no hloov pauv qhov pheej yig dua vim tias nws muaj qhov sib piv zoo heev, nrog rau kev sib kis tau zoo, uas ua rau cov duab zoo dua qub. Daim ntawv ceeb toom hauv daim duab tias ib qho ntawm cov xwm txheej raug txiav ntawm 45 ° nrog rau kev hwm rau lwm ob.

Kauj Ruam 13: Ntxiv rau Polarization Analyzers

Txuas cov ntsuas ntsuas polarization nrog daim kab xev tseeb hauv qhov kev sib dhos kho qhov muag xws li lawv tau muab tso rau hauv txoj kab kev kho qhov muag mus rau cov hlab raws li qhia hauv daim duab.

Qhov ntawd yog nws! Kev hloov dua siab tshiab tiav. Koj tuaj yeem sim lub koob yees duab ntawm theem no ua ntej rov ua dua lub khoos phis tawj sib dhos lub hau (Kuv muab pov tseg lub hau sab hauv), rov ua dua daim ntawv yas, rov txuas DF pawg thawj coj, thiab kaw lub koob yees duab.

Kauj Ruam 14: Siv Lub Koob Yees Duab

Daim duab qhia pom cov txiaj ntsig nrog lub hom phiaj piv txwv ua nrog cov khoom yas polarizing ntawm cov ces kaum nruab nrab ntawm 0 ° thiab 180 ° nrog rau xim xim. Lub hom phiaj raws li tau txais los ntawm kev hloov kho JVC KY-1900 lub koob yees duab qhia cov xim thiab lwm yam uas tsis yog-polarized ntsiab lus ntawm daim duab hauv grey-scale, thaum daim ntawm polarizer zaj duab xis muaj xim zoo nkauj, ua rau lawv lub kaum sab xis ntawm polarization hauv NTSC's RGB chaw.

Yog xav paub ntxiv txog qhov haujlwm no, thov rub tawm qhov phiaj xwm dawb ntawm www.diyPhysics.com.

Thawj qhov khoom plig hauv lub thoob khib nyiab rau cov khoom muaj nqis