Xuas tes ua Balloon Birthday Cards Xim Holographic Plate Common Light Source Thiab nws xaiv

Handmade Balloon Birthday Cards Xim holographic phaj hom teeb pom kev zoo thiab nws xaiv

Raws li cov yam ntxwv ntawm holography, holographic phaj ua yog tus cwj pwm los ntawm kev sau cov duab tiag tiag ntawm cov khoom peb sab los ntawm kev cuam tshuam ntawm kev siv thiab khoom lub teeb. Txawm li cas los xij, nyob rau hauv cov txheej txheem holographic kaw, lub teeb tawg tawg thiab cuam tshuam los ntawm qhov chaw sib txawv ntawm cov khoom peb sab muaj qhov sib txawv ntawm txoj kev kho qhov muag thaum mus txog holographic qhuav phaj vim qhov sib txawv ntawm qhov tob ntawm cov khoom. Thaum nws cuam tshuam nrog kev siv lub teeb nthwv dej, txoj kev kho qhov muag qhov sib txawv ntawm ob yuav hloov pauv ntau yam. Yog li ntawd, cov ntaubntawv povthawj siv lub teeb yuav tsum muaj ib tug ntev coherence, uas yog, zoo dua nyob rau hauv lub cev coherence; Txhawm rau sau cov khoom nrog qhov loj ntawm qhov chaw faib khoom, lub teeb ci ntsa iab yuav tsum muaj kev sib koom ua ke ntawm cov kab hluav taws xob hauv qhov loj hla ntu, uas yog, cov nqaj yuav tsum muaj kev sib txuas zoo dua; Tsis tas li ntawd, txhawm rau ua kom tau raws li lub sijhawm thiab qhov chaw sib koom ua ke uas yuav tsum tau ua los ntawm cov ntaub ntawv holographic, cov nqaj feem ntau nthuav dav me ntsis tom qab sib cais cov nqaj hauv cov ntaub ntawv kaw lus holographic, uas yog siv los ua cov ntaub ntawv siv lub teeb yoj thiab lub teeb yoj lub teeb ntawm cov khoom, uas yuav tsum tau lub zog ntawm lub teeb qhov chaw kom muaj ib tug siab concentration nyob rau hauv qhov chaw. Tam sim no, tsuas yog lasers tuaj yeem ua tau raws li cov kev cai no, thiab lwm qhov chaw teeb pom kev zoo tsis tuaj yeem ua tau raws li cov xwm txheej no. Txog tam sim no, holograms ntawm cov khoom peb-seem tsuas tuaj yeem sau nrog lasers, thiab holograms kaw nrog lub teeb dawb tsuas yog txwv rau cov khoom siv ob sab.

Laser feem ntau siv hauv holographic phaj ua

Laser xaiv

He-Ne laser feem ntau yog siv los sau cov holograms ntawm peb-dimensional khoom nrog holographic daim hlau. Ntev ntev ntev He-Ne laser tuaj yeem siv los tua cov khoom nrog qhov tob ntawm qhov loj. Thaum dichromate gelatin siv los ua cov ntaub ntawv nruab nrab, nws yog qhov zoo tshaj plaws los siv Ar + laser nrog cov zis wavelength ntawm 400nm, thiab kev xaiv ntawm photoresist yuav tsum xaiv He-Cd laser nrog cov zis wavelength ntawm 441nm los yog Ar + laser nrog cov zis wavelength ntawm 457.9 nm. Yog tias koj nqa lub hologram ntawm ib qho khoom txav, koj xav tau lub laser pulsed.

Txawm hais tias cov xim ntawm cov khoom hauv qhov xwm txheej yog xim thiab sib txawv, raws li qhov pom kev xav ntawm cov xim, muaj peb hom xim-sensitive cone hlwb nyob rau hauv lub retina, feem, liab, ntsuab, xiav (R, G, B) peb xim. , peb hu peb cov xim no peb cov xim thawj. Kev tshawb fawb qhia tau hais tias cov xim sib txawv hauv cov xwm txheej tuaj yeem sib xyaw ua ke nrog peb lub ntsiab xim hauv qhov sib txawv. Qhov kev faib ua feem sib txawv no tau pom hauv cov khoom siv yees duab, uas yog qib grey sib txawv. Xim offset luam ntawv yog kom hloov cov ntaubntawv povthawj sib txawv ntawm cov qauv grey thiab tom qab ntawd cov xim sib txawv ntawm qib thiab cov suab paj nruag qub. Txawm hais tias xim holographic luam ntawv hauv kev luam tawm ntawm thawj xim thiab xim luam ntawv muaj ntau txoj kev sib txawv, qhov qub yog los ntawm daj, magenta, xiav, dub number case nrog xim rho tawm txoj kev los tsim cov qub, thaum tom kawg yog xim liab, ntsuab, xiav. peb thawj xim lub teeb additive xim txoj kev los tsim cov xim qub, tab sis ntxiv rau lawv cov txheej txheem tshwj xeeb hauv cov txheej txheem luam tawm txawv heev, Lub hauv paus ntsiab lus ntawm decomposing tus thawj nrog peb thawj xim yog tib yam li cov khoom qub xim nrog. peb thawj xim superimposed. Yog li ntawd, cov lasers dawb yuav tsum tau siv thaum sau cov xim holograms tiag tiag ntawm cov khoom. Cov kev tshawb fawb tau pom tias peb lub ntsiab xim tuaj yeem sib haum rau peb qhov ntshiab spectra, uas International Commission on Lighting tau tsim peb tus qauv xim thawj. Lub 1931CIE-RGB tiag peb lub ntsiab xim lub rooj xim xim qhia tau hais tias lub wavelength ntawm liab thawj xim yog=700.0nm, lub wavelength ntawm ntsuab thawj xim yog=546.1 nm , thiab lub wavelength ntawm xiav thawj xim yog=435.8 nm. 1964CIERGB system kev cai: liab, ntsuab, xiav thawj xim yog 645.2 nm, 526.3 nm, 444.4 nm. Holographic cov ntaubntawv povthawj siv yuav tsum tau siv cov lasers, qhov uas twb muaj lawm laser tso zis wavelength yog feem ntau inconsistent nrog lub wavelength ntawm peb thawj xim, yog li ntawd tsuas yog qhov ze wavelength yuav xaiv tau. Piv txwv li, K+ laser dawb lossis Ar{17}}Cd laser tuaj yeem siv los ua peb xim laser.

Lub hauv paus ntsiab lus ntawm kev xaiv yog feem ntau los ntawm kev xav ntawm cov xim tiag tiag, thiab daim duab peb sab cheeb tsam ntawm peb lub wavelengths yuav tsum yog qhov loj tshaj plaws nyob rau hauv lub xy chromatogram (Daim duab 2), thaum lwm yam xws li cov zis zog ntawm lub laser yuav tsum tau muab coj mus rau hauv tus account. . Piv txwv li, hauv Table 2, pab pawg thib peb (cov kab peb sab hauv daim duab 2), pawg thib ob (dotted kab peb sab hauv daim duab 2) thiab pawg thib tsib (dotted kab peb sab hauv daim duab 2), pawg thib ob yog qhov tseem ceeb ntawm cov daim duab chromaticity, thiab daj yog ntau dua; Los ntawm qhov tso zis hluav taws xob pom, vim tias lub zog ntawm 477.1 nm wavelength tsawg dua lub zog ntawm 488.0 nm, pawg thib peb yog qhov tsim nyog dua. Tsis tas li ntawd, nws tseem yuav tsum tau xaiv qhov tsim nyog peb-xim laser wavelength raws li cov xwm txheej ntawm chav kuaj.

Thaum kaw nrog peb lub hauv paus laser, muaj peb lub holograms superimposed ntawm lub phaj qhuav. Yog hais tias lub hologram tseem illuminated nrog peb-xim laser nyob rau hauv cov kev taw qhia ntawm lub teeb siv, muaj cuaj lub teeb tsis pom kev uas ua rau cov duab qub. Peb lub teeb tsis pom kev ntawm lub hologram tsim los ntawm peb lub wavelengths ntawm liab, ntsuab thiab xiav yog nyob rau hauv tib txoj kev, thiab qhov tseeb xim virtual duab nrog tib xim raws li cov khoom yog generated. Thiab lawv tsim rau 6 lub teeb pom kev sib txawv hauv cov lus qhia sib txawv rau lub hologram tsim los ntawm cov xim sib txawv ntawm lub teeb nthwv dej, ua rau cov xim sib txawv ntawm cov duab reconstructed. Yog li ntawd, ib qho ntawm cov yuam sij ntawm qhov tseeb xim holography yog tshem tawm cov xim crosstalk.