Taw qhia
Puas tau sim thaij duab ib pab pawg thiab tsis tuaj yeem haum txhua tus neeg hauv tus ncej? Los yog siv lub koob yees duab kev ruaj ntseg uas tsuas yog ntes tau ib qho nqaim ntawm qhov chaw nres tsheb? Qhov ntawd yog qhov kev pom (FOV) ntawm kev ua haujlwm. Hauv lub koob yees duab module, FOV txiav txim siab npaum li cas ntawm ib qho chaw uas lub koob yees duab tuaj yeem pom. Nws yog ib qho tseem ceeb tshaj plaws tshwj xeeb thaum xaiv lub koob yees duab- rau kev nyab xeeb ntawm tsheb, kev kho mob endoscopy, lossis kev tshuaj xyuas kev lag luam. Ntawm Kev Ntseeg, peb tau tsim lub koob yees duab modules rau ntau tshaj 30 xyoo, thiab FOV yog qhov tseem ceeb uas peb pab cov neeg siv khoom zoo. Kab lus no piav qhia tias FOV yog dab tsi, nws ntsuas li cas, thiab xaiv qhov zoo li cas.
FOV yog dab tsi?
FOV stands rau Field of View-qhov dav ntawm qhov chaw uas lub koob yees duab ntes. Hauv cov ntsiab lus yooj yim, nws yog qhov dav lossis nqaim npaum li cas lub koob yees duab pom. FOV yog ntsuas hauv qib thiab tuaj yeem qhia tau peb txoj hauv kev:
- Diagonal FOV:Qhov kev ntsuas tshaj plaws, hla ntawm kab pheeb ces kaum
- Horizontal FOV:Qhov dav ntawm qhov chaw
- Vertical FOV:Qhov siab ntawm qhov chaw
- Lub koob yees duab nrog 120℃kab pheeb ces kaum FOV pom qhov dav dav dua ib qho nrog 60℃kab pheeb ces kaum FOV.
Vim li cas FOV teeb meem
Hauv ib qho twglub koob yees duab sensor module, FOV txiav txim siab seb lub koob yees duab pom dab tsi thiab ntau npaum li cas nws captures. nqaim dhau lawm, thiab tej zaum koj yuav plam qhov tseem ceeb. Dav dav heev, thiab cov khoom tshwm me me, ua kom nthuav dav dua kom pom.
Cov ntawv thov sib txawv xav tau FOV sib txawv. Ame koob yees duab modulerau kev kho mob endoscope xav tau qhov dav FOV kom pom hauv lub cev kab noj hniav. A4k koob yees duab modulerau daim ntawv tso cai daim ntawv lees paub xav tau qhov nqaim FOV kom ntes cov ntsiab lus txaus.
Yuav ua li cas FOV raug txiav txim
FOV yog txiav txim los ntawm ob yam tseem ceeb:
1. Lens Focal Length
Shorter focal lengths=wider FOV; ntev focal lengths=nqaim FOV.
| Focal Length | FOV | nyhuv |
|---|---|---|
| Luv (2.8mm) | Dav (90℃-120 degree) | Ntau scene, khoom me me |
| Nruab nrab (4mm-6mm) | Standard (50℃-70 degree) | Ntuj pom |
| Ntev (8mm-12mm) | Nqaim (30℃-50 degree) | Tsawg scene, khoom loj dua |
2. Sensor Loj
Rau ib tug muab focal ntev, ib tug loj sensor captures ib tug dav FOV. Acmos module koob yees duabnrog 1/1.8 "sensor yuav muaj qhov dav FOV nrog tib lub lens dua li 1/3" sensor.
FOV by Application
Automotive
FOV yog qhov tseem ceeb rau kev nyab xeeb. Ibautomotive koob yees duab modulerau rearview siv dav FOV (120℃-150 degree) kom pom qab lub tsheb, nrog rau qhov muag tsis pom. Ib tug pem hauv ntej- tig ntsej muag ADAS lub koob yees duab siv qhov nqaim FOV (30℃-60 degree) tsom rau cov khoom nyob deb xws li cov paib tsheb.
Kev soj ntsuam kev ruaj ntseg
Dav FOV (90℃-120 degree) npog thaj chaw loj xws li chaw nres tsheb tab sis ua rau lub ntsej muag me dua. Narrower FOV (30℃-60 degree) muab nthuav dav ntxiv rau kev txheeb xyuas. Ntau lub koob yees duab kev ruaj ntseg siv varifocal lo ntsiab muag rau kho FOV.
Kev kho mob Endoscopy
Hauv endoscopes, FOV txiav txim siab npaum li cas ntawm lub cev kab noj hniav uas tus kws phais pom ib zaug. Alub koob yees duab hd modulerau qhov endoscopy siv dav FOV (90℃-120 degree) kom pom kev pom hauv qhov chaw kaw.
Kev soj ntsuam kev lag luam
Rau kev tshuaj xyuas cov kav dej lossis lub cav, ame koob yees duab modulenrog rau qhov dav FOV (90℃-120 degree) tuaj yeem tshawb xyuas thaj chaw loj dua yam tsis tau txav mus los. Rau cov kab nrib pleb zoo, qhov nqaim FOV tuaj yeem siv los ua kom zoom.
Cov neeg siv khoom thiab DIY
USB endoscopes thiab webcams feem ntau siv nruab nrab FOV (60℃-90℃). A4k koob yees duab modulerau lub webcam yuav siv 70℃-80℃FOV rau ntuj - saib video hu.
FOV thiab Distortion
Dav - lub kaum sab xis feem ntau qhia txog kev sib txawv ntawm lub thoob - cov kab ncaj nraim nyob ze ntawm ntug pom nkhaus. Qhov no siv tau rau hauv endoscopy lossis kev soj ntsuam qhov kev pab cuam yog qhov tseem ceeb. Rau cov ntawv thov uas yuav tsum tau ntsuas qhov tseeb, kev sib txawv yuav tsum raug kho lossis siv cov lo ntsiab muag rectilinear.
Xaiv txoj cai FOV
| Daim ntawv thov | Pom zoo FOV | Yog vim li cas |
|---|---|---|
| Lub koob yees duab rearview | 120℃-150 degree | Qhov pom kev siab tshaj plaws |
| Forward ADAS | 30℃-60 degree | Nthuav dav txog tej khoom nyob deb |
| Kev ruaj ntseg (dav qhov chaw) | 90℃-120 degree | Kev pab them nqi |
| Kev ruaj ntseg (Identification) | 30℃-60 degree | Paub meej rau lub ntsej muag / daim hlau |
| Kev kho mob endoscopy | 90℃-120 degree | Saib hauv kab noj hniav |
| Kev tshuaj xyuas kev lag luam | 90℃-120 degree | Kev pab them nqi |
| Webcam | 60℃-80 degree | Ntuj pom |
Kev xam yuav tsum tau FOV
Txhawm rau txiav txim siab FOV, xav txog:
- Ua haujlwm nrug:Lub koob yees duab nyob deb npaum li cas ntawm qhov kev kawm?
- Lub hom phiaj cheeb tsam loj:Qhov chaw dav thiab siab npaum li cas koj yuav tsum pom?
Rau cov laj thawj tswv yim, cov tuam txhab lens muab FOV cov lus qhia rau qhov ntau thiab tsawg sensor.
Sincere's FOV Options
Ntawm Sincere, peb muab cov koob yees duab modules nrog ntau yam ntawm FOV kev xaiv:
- 4K koob yees duab module:FOV los ntawm 30℃mus rau 120℃rau kev ruaj ntseg thiab kev lag luam
- Automotive koob yees duab module:Dav FOV (120℃-150 degree) rau rearview; nqaim rau ADAS
- Lub koob yees duab hd module:1080p modules nrog FOV rau kev kho mob, kev lag luam, cov neeg siv khoom
- Cmos module koob yees duab:Lens- sib phim FOV rau kev ua tau zoo
- Lub koob yees duab me me module:Ultra-compact nrog taag dav FOV rau endoscopy
- Sensor koob yees duab module:Custom FOV xaiv
Peb qhov chaw tsim khoom suav nrog Active Alignment (AA) rau FOV zoo ib yam thiab ua kom pom tseeb.
Yuav xaiv li cas
- Txhais koj qhov scene:Lub koob yees duab yuav tsum npog thaj tsam twg? Ntsuas qhov dav thiab qhov siab ntawm kev ua haujlwm nyob deb.
- Xav paub meej:Yuav tsum txheeb xyuas cov yam ntxwv me me? Narrower FOV muab kev nthuav dav ntxiv.
- Tus account rau kev txav mus los:Yog hais tias cov ntsiab lus los yog lub koob yees duab txav, dav FOV muab cov npoo.
- Tshawb xyuas distortion:Koj puas tuaj yeem lees txais chim distortion, lossis xav tau rectilinear?
- Match sensor loj:FOV specs xav tias qhov tshwj xeeb sensor loj.
- Kuaj:Tshawb xyuas nrog tus qauv qauv yog tias ua tau.
Lub neej yav tom ntej
Raws licmos module koob yees duabtechnology nce qib:
- Dual{0}}lens modules:Ua ke dav thiab nqaim FOV
- Varifocal zoom:FOV hloov kho yam tsis hloov lub lens
- Computational duab:Software stitching rau panoramic views
- Liquid lo ntsiab muag:Fast FOV hloov pauv yam tsis tau txav qhov chaw
Cov ntsiab lus
FOV yog qhov dav ntawm qhov chaw uas lub koob yees duab captures. Nws yog txiav txim los ntawm lub lens focal ntev thiab sensor loj.
| FOV Type | Hom kab mob | Zoo tshaj rau |
|---|---|---|
| Ultra -wide | 120℃-180 degree | Maximum coverage (fisheye, rearview) |
| Dav | 90℃-120 degree | Endoscopy, kev ruaj ntseg, ncig - saib |
| Txuj | 50℃-70 degree | Ntuj pom, webcams |
| Nqaim | 30℃-50 degree | Paub meej, ADAS |
| Telephoto | <30° | Ntev -nqaj nthuav dav |
Xaiv txoj cai FOV tshuav nyiaj li cas thiab nthuav dav. A4k koob yees duab modulerau kev soj ntsuam xav tau dav FOV rau kev pab them nqi; ibautomotive koob yees duab modulerau ADAS xav tau kev nqaim dua rau kev nthuav dav nyob deb; alub koob yees duab hd modulerau endoscopy xav tau dav pom sab hauv; ame koob yees duab modulerau cov yeeb nkab tshuaj xyuas qhov sib npaug FOV thiab qhov loj me.
Ntawm Kev Ntseeg, peb pab cov neeg siv khoom xaiv qhov zoo tshaj plaws FOV rau lawvlub koob yees duab sensor moduledaim ntawv thov. Txawm koj xav tau ibcmos module koob yees duabnrog dav FOV rau kev siv kho mob lossis ame koob yees duab modulerau lub drone, tiv tauj peb los tham txog koj cov kev cai FOV.
