Kev sib koom tes ntawm kev lag luam lo ntsiab muag thiab cov teeb pom kev zoo ua lub luag haujlwm tseem ceeb hauv kev txhim kho cov tshuab pom kev ua haujlwm siab. Kev ua kom pom kev pom kev ua tau zoo yuav tsum muaj kev sib haum xeeb ntawm cov khoom siv kho qhov muag, ib puag ncig, thiab cov hom phiaj nrhiav pom. Cov hauv qab no qhia txog ntau yam tseem ceeb rau kev sib koom tes zoo:
I. Ntsuas qhov aperture thiab lub teeb qhov chaw siv
Lub aperture (F-number) cuam tshuam rau lub teeb pom kev nkag mus rau hauv lub system.
Ib qho aperture me me (siab F-tus lej, piv txwv li, F / 16) txo qis kev siv lub teeb thiab yuav tsum tau them nyiaj los ntawm qhov siv hluav taws xob siab. Nws qhov txiaj ntsig tseem ceeb yog qhov nce qhov tob ntawm qhov chaw, ua rau nws tsim nyog rau cov ntawv thov nrog cov khoom uas muaj qhov siab qhov sib txawv.
Hloov pauv, lub aperture loj (tsawg F-nquag, piv txwv li, F / 2.8) tso cai rau lub teeb ntau nkag mus, ua rau nws zoo tagnrho rau qhov chaw qis qis lossis cov xwm txheej ceev ceev. Txawm li cas los xij, vim nws qhov tob ntawm qhov tob, nws yog qhov tseem ceeb kom ntseeg tau tias lub hom phiaj tseem nyob hauv lub dav hlau focal.
II. Optimal Aperture thiab Light Source Coordination
Lenses feem ntau ua tiav lawv qhov kev daws teeb meem zoo tshaj plaws ntawm qhov nruab nrab apertures (kwv yees li ib mus rau ob qhov nres me dua qhov siab tshaj plaws aperture). Ntawm qhov teeb tsa no, qhov siv lub teeb ci yuav tsum tau sib phim kom tsim nyog kom muaj qhov sib npaug zoo ntawm cov teeb liab-rau- suab nrov piv thiab kev tswj xyuas qhov muag pom.
III. Synergy nruab nrab ntawm qhov tob ntawm teb thiab lub teeb Source Uniformity
Thaum siv lub aperture me me, nws raug nquahu kom ua ke nrog lub teeb pom kev zoo ntawm qhov chaw (xws li diffuse reflection light source). Qhov kev sib xyaw ua ke no pab tiv thaiv kom tsis txhob muaj qhov tshwm sim hauv cheeb tsam los yog tsis pom kev, ua kom cov duab zoo ib yam nyob rau hauv cov xwm txheej uas xav tau qhov tob ntawm qhov loj.
Thaum siv lub aperture loj, taw tes lossis kab teeb pom kev tuaj yeem ua haujlwm los txhim kho qhov sib txawv ntawm ntug. Txawm li cas los xij, ceev faj hloov ntawm lub teeb lub kaum sab xis yog qhov tsim nyog kom txo qis kev cuam tshuam lub teeb pom kev zoo.
IV. Sib piv daws teeb meem nrog lub teeb Source wavelength
Rau kev ua haujlwm siab kom paub meej, nws yog ib qho tseem ceeb uas yuav tau xaiv lub teeb pom kev zoo uas haum rau cov yam ntxwv ntawm lub lens. Piv txwv li, pom lub teeb pom kev zoo yuav tsum tau ua ke nrog dawb LED qhov chaw, thaum lub lens infrared yuav tsum tau siv nrog infrared laser qhov chaw.
Tsis tas li ntawd, qhov xaiv lub teeb qhov chaw wavelength yuav tsum zam qhov nqus ntawm lub lens txheej los tiv thaiv lub zog poob thiab chromatic aberration.
V. Cov Tswv Yim Tshaj Tawm rau Dynamic Scenes
Nyob rau hauv high-speed detection scenarios, combining ib tug loj aperture nrog luv luv lub sij hawm yog feem ntau tsim nyog. Nyob rau hauv tas li ntawd, ib tug high-frequency pulsed lub teeb qhov chaw (xws li, ib tug strobe light) yog pom zoo kom tshem tawm qhov kev ua kom pom qhov muag plooj.
Rau cov ntawv thov uas xav tau lub sijhawm ntev ntev, yuav tsum siv lub teeb pom kev ruaj khov txuas ntxiv, thiab kev ntsuas xws li cov lim dej polarizing yuav tsum tau txiav txim siab txhawm rau txhawm rau cuam tshuam lub teeb pom kev zoo thiab txhim kho cov duab zoo.
Post lub sij hawm: Aug-21-2025