Uvavanyo lwe-LCP-28 Abbe Imaging kunye neSpatial Filtering Umfanekiso obonisiweyo

Uvavanyo lokuHlola i-LCP-28 Abbe kunye novavanyo lokuHlola iNdawo

Inkcazo emfutshane:

Umgaqo we-Abbe imaging ukholelwa ukuba inkqubo yokufota ilensi inokwahlulwa ibe ngamanyathelo amabini: inyathelo lokuqala kukwenza i-spatial spectrum kwi-rear focal plane (spectrum plane) yelensi ngokukhanya okuphuma kwinto ethile, okuyi-"frequency division" effect ebangelwa yi-diffraction; inyathelo lesibini kukufaka i-coherently overlay ye-spatial frequency ezahlukeneyo kwi-image plane ukuze kwenziwe umfanekiso wento leyo, eyi-"synthesis" effect ebangelwa kukuphazamiseka. Amanyathelo amabini enkqubo yokufota ngokuyintloko zii-Fourier transforms ezimbini. Ukuba ezi zi-Fourier transforms zimbini zilungile ngokupheleleyo, oko kukuthi, akukho lahleko lolwazi, ngoko umfanekiso kunye nento kufuneka zifane ngokupheleleyo. Ukuba izihluzi ezahlukeneyo zendawo zibekwe kumphezulu we-spectrum ukuvimba ezinye izinto ze-spatial frequency ze-spectrum, umfanekiso uya kutshintsha. I-Spatial filtering kukubeka izihluzi ezahlukeneyo zendawo kumphezulu we-spectrum yenkqubo ye-optical, ukususa (okanye ukukhetha ukudlula) ii-spatial frequency ezithile okanye ukutshintsha i-amplitude kunye ne-phase yazo, ukuze umfanekiso wento onemilinganiselo emibini uphuculwe njengoko kufuneka. Le ikwayintsingiselo yokucutshungulwa kwe-coherent optical.

Thumela i-imeyile kuthi

Iinkcukacha zeMveliso

Iithegi zeMveliso

Iimvavanyo
1. Ukuqinisa ukuqonda iingcamango ze-spatial frequency, i-spatial frequency spectrum kunye ne-spatial filtering kwi-Fourier optics
2. Uqhelene nendlela yokucoca indawo kunye neendlela zokucoca nge-high-pass, low-pass kunye ne-directional filter

Iinkcukacha

Umthombo wokukhanya omhlophe	12V,30W
I-laser ye-He-Ne	632.8nm, amandla> 1.5mW
Isitimela esibonakalayo	1.5m
Izihluzi	Isihluzi seSpectrum, isihluzi esingacwangciswanga, isihluzi esibhekisa kwicala, isihluzi esisezantsi, isihluzi esidlula phezulu, isihluzi sebhendi, isihluzi esinomngxuma omncinci
Ilensi	f=225mm,f=190mm,f=150mm,f=4.5mm
I-Grating	Igridi yokudlulisa i-20L/mm, igridi enemilinganiselo emibini i-20L/mm, ibhodi ye-grid word i-20L/mm, ibhodi ye-θ modulation
I-diaphragm elungisekayo	I-0-14mm ehlengahlengiswayo
Ezinye	Isilayidi, Isibambi sokuthambeka esijikelezileyo esinee-axis ezimbini, isibambi selensi, isibuko seplane, isibambi sepleyiti