Umehluko phakathi kwama-LED angu-850nm no-940nm

Amakhamera okuzingelasebeyithuluzi elibalulekile labazingeli nabathandi bezilwane zasendle, okubavumela ukuthi bathwebule izithombe namavidiyo wekhwalithi ephezulu ezilwane zasendle endaweni yabo yemvelo.Enye yezingxenye ezibalulekile zekhamera yokuzingela i-infrared (IR) LED, esetshenziselwa ukukhanyisa indawo ekukhanyeni okuphansi ngaphandle kokuxwayisa izilwane ngokuba khona kwekhamera.Uma kuziwa ekuzingeleni amakhamera, izinhlobo ezimbili ezijwayelekile zama-IR LED ama-LED angu-850nm nama-940nm.Ukuqonda umehluko phakathi kwalezi zinhlobo ezimbili zama-LED kubalulekile ekukhetheni okulungileikhamera yomdlalo ngezidingo zakho ezithile.

Umehluko oyinhloko phakathi kwama-LED angu-850nm no-940nm usebudeni beza beza bokukhanya kwe-infrared akukhiphayo.Ubude begagasi bokukhanya bulinganiswa ngama-nanometers (nm), ngo-850nm no-940nm kubhekiselwa kububanzi obuthile be-spectrum ye-infrared.I-850nm LED ikhipha ukukhanya okubonakalayo kancane emehlweni omuntu, okubonakala njengokukhanya okubomvu okufiphele ebumnyameni.Ngakolunye uhlangothi, i-940nm LED ikhipha ukukhanya okungabonakali ngokuphelele ngeso lomuntu, okuyenza ibe ilungele ukubhekwa okucashile kanye nokubhekwa kwezilwane zasendle.

Ngokwezinto ezibonakalayo, ukukhetha phakathi kwama-LED angu-850nm nama-940nm kuncike ekusetshenzisweni okuqondile kwekhamera yokuzingela.Kubazingeli abafuna ukuqapha izindlela zezilwane kanye nemisebenzi yezilwane zasendle ngaphandle kokuphazamisa izilwane, i-940nm LED iyona nto ekhethwayo.Ukukhanya kwayo okungabonakali kuqinisekisa ukuthi ikhamera ihlala ingabonwa, okuvumela ukuziphatha kwezilwane zasendle okungokwemvelo okwengeziwe nokuyiqiniso ukuthi kuthwetshulwe ngekhamera.Ukwengeza, i-940nm LED mancane amathuba okuthi ithuse izilwane zasebusuku, okuyenza ibe inketho enhle kakhulu yokuthwebula izithombe namavidiyo ezidalwa zasebusuku ezingatholakali kalula.

Ngakolunye uhlangothi, i-850nm LED ingase ifaneleke kakhulu ngezinjongo zokugada nokuphepha.Nakuba ikhipha ukukhanya okubomvu okufiphele okungabonakali kubantu, isengatholwa izilwane ezithile ezikwazi ukubona kahle ebusuku, njengezinhlobo ezithile zezinyamazane.Ngakho-ke, uma inhloso eyinhloko kuwukunqanda abeqa umthetho noma ukuqapha indawo ngezinjongo zokuphepha, i-850nm LED ingaba inketho engcono ngenxa yokukhanya kwayo okubonakalayo kancane.

Kubalulekile ukuqaphela ukuthi ukukhetha phakathi kwama-LED angu-850nm no-940nm nakho kunomthelela ebangeni nokucaca kwamakhono okubona ebusuku ekhamera.Ngokuvamile, ama-LED angu-850nm ahlinzeka ngokukhanya okungcono kancane kanye nebanga elide uma kuqhathaniswa nama-LED angu-940nm.Kodwa-ke, umehluko kububanzi mncane, futhi ukuhwebelana kokungabonakali okukhulayo ngama-LED angu-940nm kuvame ukudlula inzuzo encane ebangeni elinikezwa ama-LED angu-850nm.

Sengiphetha, umehluko phakathi kwe-850nm kanye ne-940nm LEDs kumakhamera okuzingela ubilisa ekubonakaleni nasekungabonakali.Ngenkathi i-850nm LED inikeza ukukhanya nobubanzi obungcono kancane, i-940nm LED inikeza ukungabonakali okuphelele, okuyenza ibe ukukhetha okuthandwayo kokubhekwa kwezilwane zasendle kanye nokubhekwa okuyimfihlo.Ukuqonda izidingo ezithile zezidingo zakho zokuzingela noma zokugadwa kuzokusiza wenze isinqumo esinolwazi lapho ukhetha phakathi kwalezi zinhlobo ezimbili zama-LED owakho.amakhamera ezilwane zasendle.