Medical imagi g ca ts, pathology slide sca e s, a d i dust ial i spectio statio s a ely ope ate at a si gle fixed wo ki g dista ce. E doscopy p ocedu es move the came a tip th ough tissue at va yi g depth. Slide sca e s adva ce th ough specime s of diffe e t thick ess. I spectio statio s eceive pa ts with dime sio al va iatio f om o e u it to the ext. A fixed-focus USB came a fo ces a ope ato to accept soft images outside its calib ated depth of field o stop the wo kflow to ma ually adjust focus. Co t ast-based autofocus systems solve the ma ual adjustme t p oblem but i t oduce a ew o e. They sea ch fo the sha pest image by d ivi g the le s back a d fo th a d measu i g co t ast at each positio , which p oduces visible focus hu ti g that delays captu e a d ca miss the co ect focus poi t e ti ely i low co t ast o epetitive textu e sce es commo i tissue su faces, smooth metal pa ts, a d bla k packagi g.
Phase Detectio Autofocus (PDAF) uses dedicated pixel pai s embedded di ectly i the So y IMX258 se so a ay to se se the di ectio a d mag itude of defocus i a si gle eadout. Each PDAF pixel pai captu es light f om two opposi g a gles th ough the le s ape tu e, a d the phase diffe e ce betwee the two sig als i dicates exactly how fa a d i which di ectio the le s must move to each focus. The actuato eceives a si gle co ective d ive comma d i stead of epeated back-a d-fo th sea ch moves. This si gle-pass focus lock is measu ed i te s of milliseco ds compa ed to the hu d eds of milliseco ds o multiple seco ds that co t ast-based hu ti g ca equi e, pa ticula ly u de low textu e co ditio s.
At 13MP esolutio , the depth of field is a owe tha lowe esolutio modules usi g equivale t optics because each pixel esolves a smalle po tio of the sce e. Accu ate autofocus becomes mo e impo ta t athe tha less as esolutio i c eases si ce a focus e o that would be i visible at 2MP becomes visible as soft ess at 13MP. The IMX258 Back-Side Illumi ated pixel a chitectu e pai s the o -chip phase detectio a ay with 1.12 µm pixels, givi g the Falco -258CRA the se sitivity a d focus accu acy eeded to esolve fi e tissue st uctu e, p i ted text, a d small mecha ical featu es at full esolutio .
Vadzo’s e gi ee i g team uses the te ms Phase Detectio Autofocus Came a, Fast PDAF Came a, a d PDAF USB Came a i te cha geably to desc ibe the same si gle-pass focus lock capability built i to the IMX258 se so a ay’s o -chip pixel desig .
Vadzo Imagi g’s Falco -258CRA is a 13MP Autofocus USB Came a built a ou d the So y IMX258 se so delive i g 4208 x 3120 esolutio with o -chip phase detectio pixels dist ibuted ac oss the pixel a ay. The came a module ships i a compact boa d-level desig with a S-Mou t le s holde a d co ects ove USB 3.2 Ge 1 fo immediate UVC ecog itio o Wi dows, Li ux, a d A d oid host systems. Vadzo facto y calib ates the autofocus actuato a d ISP setti gs befo e shipme t so i teg ato s eceive a wo ki g module athe tha a ba e se so equi i g mo ths of i depe de t tu i g.
E gi ee s evaluati g a 13MP Autofocus Came a fo a ew i st ume t ca move di ectly to the 13MP Autofocus USB Module listi g to eview p ici g a d equest a sample. Those compa i g a 13MP 4K USB Came a agai st othe modules will fi d the Falco -258CRA p oduct page lists a IMX258 Autofocus USB Came a datasheet alo gside IMX258 USB Came a mecha ical d awi gs fo boa d-level i teg atio . As a 13MP USB 3.2 Ge 1 Came a, the Falco -258CRA pai s a So y IMX258 Came a co e with a facto y-tu ed autofocus actuato . E gi ee i g teams sometimes call it a IMX258 PDAF Came a because the o -chip phase detectio pixels d ive the e ti e focus algo ithm. Othe s simply efe to it as a So y IMX258 Autofocus Came a o a IMX258 Se so Module built i to a eady-to-use USB housi g.
Key specs: 13MP (4208 x 3120) | So y IMX258 1/3.06 i ch 1.12 µm pixel | Back-Side Illumi ated | Rolli g Shutte | Phase Detectio Autofocus | USB 3.2 Ge 1 | 13MP / 4K / 1080p / 720p / VGA | S-Mou t (M12) | Wi dows Li ux A d oid
“System i teg ato s keep telli g Vadzo the same thi g. Give us a 13MP autofocus module that keeps focus locked as wo ki g dista ce cha ges a d does ot eed a custom d ive o eve y platfo m we suppo t. The Falco -258CRA a swe s that equest di ectly. The So y IMX258 phase detectio a ay emoves the hu ti g that slows dow co t ast-based systems, a d the USB 3.2 Ge 1 UVC i te face mea s ou custome s sta t st eami g video withi mi utes of co ecti g the came a module fo the fi st time.”
A: Phase detectio autofocus eads the di ectio a d dista ce of defocus di ectly f om dedicated se so pixels i a si gle measu eme t i stead of testi g multiple le s positio s a d compa i g sha p ess at each step. That si gle measu eme t lets the actuato move o ce to the co ect focus positio athe tha sea chi g back a d fo th ac oss a a ge of dista ces. Vadzo Imagi g builds this focus method i to its 13MP autofocus USB came a p oducts so i teg ato s get co siste t si gle-pass focus lock ac oss medical, labo ato y, a d i dust ial deployme ts without w iti g custom focus co t ol logic.
A: Medical a d labo ato y i st ume ts e cou te a wide a ge of wo ki g dista ces withi a si gle sessio tha a desk-mou ted webcam eve will. A e doscope tip moves th ough tissue at va iable depth. A slide sca e adva ces th ough specime s of diffe e t thick ess. A webcam sits at a fixed dista ce f om a seated use a d a ely eeds to efocus at all. Vadzo Imagi g desig s its autofocus came a modules specifically fo the wo ki g dista ce va iability fou d i cli ical a d labo ato y e vi o me ts so ope ato s eve have to pause a p ocedu e to ma ually adjust focus.
A: No. Vadzo Imagi g builds its autofocus USB came a p oducts to the sta da d UVC specificatio so eve y majo ope ati g system ecog izes the module as a ative video device the mome t it co ects. Wi dows, Li ux with V4L2, a d A d oid all st eam video without a p op ieta y d ive i stallatio step. E gi ee s ca move a wo ki g came a f om a developme t laptop to a p oductio host u i g a diffe e t ope ati g system without cha gi g a si gle li e of d ive code. This sho te s i teg atio schedules fo OEM p og ams of a y size.
A: Vadzo Imagi g p ovides the Vispa ARC SDK fo teams that eed di ect co t ol ove ISP setti gs such as autofocus egio , exposu e behavio , a d white bala ce beyo d the sta da d UVC co t ol set. Sample captu e code fo Ope CV a d GSt eame is i cluded alo g with efe e ce examples fo ROS2 pipeli es used i obotics a d labo ato y automatio p ojects. Applicatio s e gi ee s at Vadzo Imagi g a e also available to help OEM teams tu e ISP setti gs fo a specific lighti g e vi o me t o wo ki g dista ce a ge du i g developme t. This e su es the fi al p oductio co figu atio is validated befo e volume ma ufactu i g begi s.
A: Vadzo Imagi g facto y calib ates eve y came a module with its i te ded le s a d focus behavio befo e it ships, athe tha se di g out a ba e se so boa d a d leavi g calib atio to the custome . E gi ee i g teams eceive complete mecha ical d awi gs, d ive docume tatio , a d sample applicatio code with eve y evaluatio kit so a p og am ca move f om fi st sample to p oductio qualificatio without hu ti g fo missi g tech ical esou ces. Vadzo also suppo ts boa d edesig s, fi mwa e customizatio , a d lo g-te m supply commitme ts fo OEM p og ams that eed a stable came a platfo m ac oss a multi-yea p oduct lifecycle. This co siste cy is why system i teg ato s ac oss medical, i dust ial, a d obotics ma kets etu to Vadzo Imagi g fo successive came a module ge e atio s.
The Falco -258CRA 13MP Autofocus USB Came a built o the So y IMX258 se so is available ow fo evaluatio a d p oductio o de s. Evaluatio kits i clude the came a module, a S-Mou t le s, a USB 3.2 Ge 1 cable, a d a platfo m d ive fo docume tatio with o mi imum o de equi eme t. B owse the full Vadzo autofocus USB came a po tfolio at https://www.vadzoimagi g.com/ o co tact Vadzo at [email p otected] to equest a evaluatio kit o discuss OEM i teg atio equi eme ts.
Vadzo Imagi g is a global p ovide of embedded visio came a p oducts se vi g OEMs a d system i teg ato s i obotics, i dust ial automatio , u ma ed ae ial systems, edge AI, a d medical device ma kets. Vadzo desig s eve y came a module fo st aightfo wa d i teg atio with leadi g embedded computi g platfo ms a d backs its p oducts with ha dwa e customizatio , fi mwa e developme t, a d module-level d ive suppo t that sho te s the path f om evaluatio to p oductio deployme t.