Umehluko phakathi kuka-850nm no-940nm LED

Amakhamera wokuzingelaUbe yithuluzi elibalulekile labazingeli nabathandi bezilwane zasendle, abavumela ukuba babambe izithombe ezisezingeni eliphakeme namavidiyo wezilwane zasendle endaweni yazo yemvelo. Enye yezinto ezisemqoka zekhamera yokuzingela i-LED ye-infrared (IR) ye-LED, esetshenziselwa ukukhanyisa indawo ezimeni eziphansi ngaphandle kokuqwashisa izilwane ekubusweni kwekhamera. Uma kukhulunywa ngamakhamera okuzingela, izinhlobo ezimbili ezivamile ze-IR LED zi-850nm kanye nama-940NM LED. Ukuqonda umehluko phakathi kwalezi zinhlobo ezimbili zama-LED kubalulekile ekukhetheni okulungileIkhamera yomdlalo ngezidingo zakho ezithile.

Umehluko oyinhloko phakathi kuka-850nm no-940nm LEDs ulele ku-wavelength of infrared bakhipha. I-wavengength yokukhanya ilinganiswa kuma-nanometers (NM), nge-850nm ne-940NM ebhekisa kuhlu oluthile lwe-infrared Supplerum. I-850nm LED ikhipha ukukhanya okubonakala kancane esweni lomuntu, okuvela njengokukhanya okubomvu okubucayi ebumnyameni. Ngakolunye uhlangothi, i-940nm eholwa yi-LED ikhipha ukukhanya okungabonakali ngokuphelele esweni lomuntu, okwenza kube kuhle ngokubhekisisa kokubhekwa kokubhekwa kwe-Covert kanye nasezilwaneni zasendle.

Ngamagama asebenzayo, ukukhetha phakathi kuka-850nm no-940nm LED kuncike ekusetshenzisweni okuthile kwekhamera yokuzingela. Kubazingeli abafuna ukuqapha imizila yemidlalo kanye nomsebenzi wezilwane zasendle ngaphandle kokuphazamisa izilwane, i-940nm eholwa yikhetho olukhethwayo. Ukukhanya kwayo okungabonakali kuqinisekisa ukuthi ikhamera ikhala ingabonakali, ivumela ukuba izilwane zasendle eziningi zemvelo neziqiniso zemvelo zithathwe kwikhamera. Ngokwengeziwe, i-940nm eholwa amathuba amancane amathuba okuthi inciphise izilwane zasebusuku, okwenza kube yindlela enhle yokuthwebula izithombe namavidiyo wezidalwa zasebusuku ezingenakuqhathaniswa.

Ngakolunye uhlangothi, i-850nm eholwa ingahle ilungele kakhulu izinhloso zokubhekwa kanye nokuphepha okujwayelekile. Ngenkathi ikhipha ukukhanya okubomvu okubunjiwe okungabonakali kahle kubantu, kusengatholwa ezinye zezilwane ngombono wobusuku obukhulayo, njengezinhlobo ezithile zenyamazane. Ngakho-ke, uma umgomo oyinhloko ukunqanda iziphambukeli noma ukuqapha indawo ngezinjongo zokuphepha, i-850nm eholwa ingaba yikhetho elingcono ngenxa yokukhanya kwayo okubonakalayo okubonakalayo.

Kubalulekile ukuqaphela ukuthi ukukhetha phakathi kuka-850nm no-940nm kuholele nobubanzi bokucaciswa kwamakhono okubuka kwekhamera. Ngokuvamile, ama-850nm le-LED ahlinzeka ngokukhanyiswa okungcono nokuhlale okude kuqhathaniswa ne-940NM LED. Kodwa-ke, umehluko ebangeni elincane, futhi ukuhweba ngokuthengiswa okwengeziwe ngama-940nm ama-LEDs avame ukwedlula inzuzo encane ebangeni eliphansi elinikelwe ngama-850nm LEDs.

Ekuphetheni, umehluko phakathi kuka-850nm no-940nm LEDs kumakhamera wokuzingela amakhamera ashonile ekubonakaleni nasekubonakaliseni. Ngenkathi i-850nm eholwa inikeza ukukhanya okungcono kanye nobubanzi, i-940nm LED inikezela ngokungabonakali ngokuphelele, okwenza kube yikhethelo elikhethwayo lokubukwa kwezilwane zasendle nokubhekwa okufihliwe. Ukuqonda izidingo ezithile zezidingo zakho zokuzingela noma zokubhekwa kuzokusiza wenze isinqumo esinolwazi lapho ukhetha phakathi kwalezi zinhlobo ezimbili ze-LED zakhoAmakhamera Wezilwane Zasendle.