Taw qhia
Thaum koj saib lub koob yees duab module specs, koj yuav pom qee yam xws li "f/1.8" lossis "f/2.0." Qhov ntawd yog qhov aperture. Tab sis nws txhais li cas tiag? Hauv cov ntsiab lus yooj yim, aperture yog qhov qhib hauv lub lens uas cia lub teeb rau hauv lub koob yees duab. Nws yog ib qho tseem ceeb tshaj plaws uas cuam tshuam rau cov duab ci ntsa iab, qhov tob ntawm qhov chaw, thiab qis - lub teeb ua haujlwm. Ntawm Kev Ntseeg, peb tau tsim lub koob yees duab modules rau ntau tshaj 30 xyoo, thiab kev xaiv aperture yog ib feem tseem ceeb ntawm peb cov txheej txheem tsim. Kab lus no piav qhia qhov aperture yog dab tsi, nws ua haujlwm li cas, thiab xaiv qhov zoo li cas.
Aperture yog dab tsi?
Aperture yog qhov loj ntawm qhov qhib nyob rau hauv lub lens uas lub teeb hla mus txog rau cov duab sensor. Nws tau qhia tias yog tus lej f-tus lej (piv txwv li, f/1.8, f/2.4, f/3.5). Tus lej f- yog qhov piv ntawm lub lens lub focal ntev mus rau txoj kab uas hla ntawm qhov qhib aperture.
Tseem ceeb:Qhov me me f- tus lej txhais tau hais tias qhov qhib loj dua (lub teeb ntau dua). F- tus lej loj dua txhais tau tias qhov qhib me me (tsawg lub teeb).
| f-npe | Qhib Qhov Loj | Lub teeb kis |
|---|---|---|
| f/1.4 – f/1.8 | Loj | Maximum (zoo tshaj plaws rau lub teeb qis) |
| f/2.0 – f/2.8 | Nruab nrab | Zoo sib npaug |
| f/3.5 – f/5.6 | Me me | Tsawg lub teeb (ci ntsa iab xav tau) |
Vim li cas Aperture Matters
Hauv ib qho twglub koob yees duab sensor module, aperture cuam tshuam rau ob qhov tseem ceeb:
1. Lub teeb sib sau ua ke (Low-Light Performance)
Lub aperture loj dua (me me f-number) cia nyob rau hauv ntau lub teeb. Qhov tseem ceeb rau:
Kev kho mob endoscopy (limited illumination)
Automotive hmo ntuj tsav tsheb
Kev ruaj ntseg soj ntsuam nyob rau hauv lub teeb qis
Sab hauv webcams
A zoo tshaj lub koob yees duab modulerau qis- teeb pom kev zoo feem ntau muaj aperture loj xws li f/1.8 lossis f/2.0.
2. Qhov tob ntawm Field (DOF)
Qhov tob ntawm daim teb yog qhov ntau ntawm qhov kev ncua deb uas pom qhov ntse. Aperture ncaj qha tswj DOF:
Loj aperture (me me f-number):Loj DOF. Cov ntsiab lus ntse, tom qab qhov muag plooj. Zoo rau tsom rau cov ntsiab lus tshwj xeeb.
Me aperture (loj f-number):Deep DOF. Txhua yam los ntawm ze mus deb ntse. Qhov tseem ceeb rau endoscopy, tshuaj xyuas, thiab lub koob yees duab tsheb uas koj xav pom tag nrho cov xwm txheej.
Aperture los ntawm Daim Ntawv Thov
| Daim ntawv thov | Hom Aperture | Yog vim li cas |
|---|---|---|
| Kev kho mob endoscopy | f/2.0 – f/2.8 | Sib npaug ntawm lub teeb thiab qhov tob ntawm qhov chaw |
| Automotive (ADAS) | f/1.8 – f/2.4 | Tsawg- teeb rau kev tsav tsheb hmo ntuj |
| Kev soj ntsuam kev ruaj ntseg | f/1.8 – f/2.2 | Zoo qis- teeb, nruab nrab DOF |
| Kev tshuaj xyuas kev lag luam | f/2.0 – f/2.8 | Sib npaug rau qhov sib txawv |
| Webcam | f/2.0 – f/2.8 | Zoo qis- teeb rau sab hauv tsev |
| Sab nraum zoov / ci ntsa iab | f/3.5 – f/5.6 | Sib sib zog nqus DOF, tus nqi -zoo |
Aperture cuam tshuam li cas rau daim ntawv thov
Automotive
Rau ibautomotive koob yees duab module, low- lub teeb kev ua tau zoo yog qhov tseem ceeb. Tom ntej-faus ADAS lub koob yees duab yuav tsum pom meej thaum hmo ntuj, hauv qhov av, thiab huab cua phem. Lub aperture loj (f/1.8–f/2.0) tso cai raucmos module koob yees duabkom ntes tau lub teeb txaus rau kev txhim khu kev qha khoom. Qhov tob ntawm thaj teb kuj tseem ceeb - lub koob yees duab yuav tsum pom ob qho tib si ze thiab deb.
Kev kho mob Endoscopy
Nyob rau hauv lub cev, illumination yog txwv. Alub koob yees duab hd modulerau qhov endoscopy xav tau kev ua tau zoo tsawg- lub teeb ua haujlwm kom txo qis lub teeb (thiab cua sov) qhia ntawm cov ntaub so ntswg. Qhov nruab nrab aperture (f/2.0–f/2.8) sib npaug lub teeb sib sau ua ke thiab qhov tob ntawm qhov chaw.
Kev soj ntsuam kev ruaj ntseg
Cov koob yees duab kev ruaj ntseg ua haujlwm hauv cov teeb pom kev sib xyaw. A4k koob yees duab moduleKev soj ntsuam yuav siv lub aperture loj (f/1.8) rau kev ua haujlwm hmo ntuj, ua ke nrog IR illumination. Thaum nruab hnub, ceev shutter speeds them.
Kev soj ntsuam kev lag luam
Rau kev tshuaj xyuas cov tshuab lossis cov kav dej, qhov tob ntawm thaj chaw feem ntau tseem ceeb tshaj qhov tsis tshua muaj siab - lub teeb ua haujlwm. Alub koob yees duab sensor modulenrog rau nruab nrab aperture (f/2.4–f/2.8) muab lub teeb txaus thaum khaws qhov tob ntawm qhov loj.
Aperture thiab Lens Size
Cov apertures loj dua yuav tsum muaj cov ntsiab lus loj dua, ua kom cov module loj. Rau qhov loj me - cov ntawv thov tseem ceeb- zoo li ame koob yees duab modulerau lub drone lossis kho mob endoscope-muaj kev lag luam- tawm ntawm qhov aperture thiab qhov ntev.
Tsau vs. Variable Aperture
Feem ntau cov koob yees duab modules hauv embedded, industrial, thiab automotive applications muajruaj apertures. Qhov no yooj yim tsim, txo tus nqi, thiab txhim kho kev ntseeg tau. Cov apertures sib txawv tsis tshua muaj nyob hauv cov ntawv thov no.
Xaiv Txoj Cai Aperture
| Ua ntej | Pom zoo Aperture |
|---|---|
| Qhov zoo tshaj plaws qis- lub teeb ua haujlwm | f/1.4 – f/1.8 |
| Kev ua tau zoo sib npaug | f/2.0 – f/2.4 |
| Qhov tob tob ntawm qhov chaw | f/2.8 – f/4.0 |
| Tus nqi -sensitive, ci ntsa iab | f/3.5 – f/5.6 |
Kev txiav txim siab
- Teeb pom kev zoo:Lub teeb qis? Xaiv lub aperture loj dua.
- Qhov tob ntawm thaj tsam:Xav tau txhua yam hauv kev tsom xam? Nruab nrab aperture (f/2.4–f/2.8) muab DOF zoo.
- Size txwv: A me koob yees duab moduletej zaum yuav txwv qhov siab tshaj plaws aperture.
- Tus nqi:Cov apertures loj dua yuav tsum muaj cov lo ntsiab muag ntau dua, nce nqi.
Aperture thiab duab zoo
- Diffraction:Cov apertures me me tuaj yeem txo qhov ua tau zoo-tsis tshua muaj kev txhawj xeeb hauv kev ruaj khov -aperture modules.
- Aberrations:Cov apertures loj heev tuaj yeem qhia txog teeb meem kho qhov muag. High -zoo lens tsim minimizes cov no.
Sincere's Aperture Options
Ntawm Sincere, peb muab cov koob yees duab modules nrog ntau yam kev xaiv aperture:
- 4K koob yees duab module:f/1.8 rau f/2.8 rau kev ruaj ntseg thiab kev lag luam
- Automotive koob yees duab module:f/1.8–f/2.0 rau low-light ADAS
- Lub koob yees duab hd module:1080p nrog sib npaug apertures rau kev kho mob, kev lag luam
- Cmos module koob yees duab:Lens -match aperture rau kev ua tau zoo
- Qhov zoo tshaj plaws lub koob yees duab module:Custom aperture xaiv
- Sensor koob yees duab module:Kho kom haum rau qhov kev xav ntawm lub sensor
Peb cov khoom tsim muaj xws li Active Alignment (AA) rau kev ua kom pom tseeb thiab cov duab zoo.
Yuav xaiv li cas
- Ntsuas teeb pom kev zoo:Lub teeb qis? Ua ntej qhov loj dua (f/1.8–f/2.0).
- Txiav txim siab DOF xav tau:Xav tau txhua yam hauv kev tsom xam? Nruab nrab aperture (f/2.4–f/2.8).
- Xav txog qhov loj me: A me koob yees duab moduletej zaum yuav txwv aperture.
- Match rau sensor:Cov sensor siab heev yuav tso cai rau me me aperture.
- Kuaj:Tshawb xyuas nrog tus qauv qauv yog tias ua tau.
Lub neej yav tom ntej
Raws licmos module koob yees duabtechnology nce qib:
- Liquid lo ntsiab muag:Cia lub aperture sib txawv tsis muaj mechanical complexity
- Computational duab:Software tuaj yeem simulate qhov tob ntawm qhov teebmeem
- Txhim kho sensor rhiab heev:Tso cai rau me me apertures thaum tuav qis - teeb ua haujlwm
Cov ntsiab lus
Aperture yog qhov qhib nyob rau hauv lub lens uas tswj ntau npaum li cas lub teeb mus txog lub sensor. me me f- nab npawb=loj qhib (ntau lub teeb); loj f- nab npawb=me me qhib (tsawg lub teeb).
| Aperture | Teeb | Qhov tob ntawm teb | Zoo tshaj rau |
|---|---|---|---|
| Loj (f/1.4–f/1.8) | Qhov siab tshaj plaws | ntiav | Tsawg lub teeb, xaiv tsom |
| Nruab nrab (f/2.0–f/2.8) | Zoo | Nruab nrab | Sib npaug daim ntawv thov |
| Me me (f/3.5–f/5.6) | txwv | Sib sib zog nqus | Lub teeb ci, sib sib zog nqus DOF |
Xaiv qhov zoo aperture sib npaug lub teeb sib sau ua ke, qhov tob ntawm thaj teb, qhov loj me, thiab tus nqi. A4k koob yees duab modulerau kev ruaj ntseg hmo ntuj xav tau aperture loj; ibautomotive koob yees duab modulerau ADAS xav tau lub aperture loj rau kev tsav tsheb hmo ntuj; alub koob yees duab hd modulerau endoscopy xav tau ib tug nruab nrab aperture rau tshuav; alub koob yees duab sensor modulerau kev soj ntsuam kev lag luam tuaj yeem ua qhov tseem ceeb ntawm qhov tob.
Ntawm Sincere, peb pab cov neeg siv khoom xaiv qhov zoo tshaj plaws aperture rau lawvcmos module koob yees duabdaim ntawv thov. Txawm koj xav tau ibzoo tshaj lub koob yees duab modulenrog loj aperture rau tsawg lub teeb los yog ame koob yees duab modulenrog sib npaug aperture rau qhov chaw nruj, tiv tauj peb los tham txog koj cov kev xav tau aperture.
