Itandukaniro riri hagati ya 850nm na 940nm LED

Guhiga kamerababaye igikoresho cyingenzi kubahiga n’abakunzi b’inyamanswa, bibemerera gufata amashusho meza na videwo y’ibinyabuzima byo mu gasozi aho batuye.Kimwe mu bintu by'ingenzi bigize kamera yo guhiga ni LED (IR) LED, ikoreshwa mu kumurika ako gace mu mucyo mucye utabanje kumenyesha inyamaswa kamera.Ku bijyanye no guhiga kamera, ubwoko bubiri bwa IR LED ni 850nm na 940nm LED.Gusobanukirwa itandukaniro riri hagati yubwoko bubiri bwa LED ningirakamaro muguhitamo iburyokamera yumukino kubyo ukeneye byihariye.

Itandukaniro ryibanze hagati ya 850nm na 940nm LEDs iri muburebure bwumucyo wumucyo utanga.Uburebure bwumucyo bupimirwa muri nanometero (nm), hamwe na 850nm na 940nm bivuga urwego rwihariye rwa infragre.LED 850nm itanga urumuri rugaragara gato mumaso yumuntu, rugaragara nkurumuri rutukura rwijimye mu mwijima.Ku rundi ruhande, LED 940nm itanga urumuri rutagaragara rwose ku jisho ry'umuntu, bityo bikaba byiza gukurikiranwa rwihishwa no kureba inyamaswa.

Muburyo bufatika, guhitamo hagati ya 850nm na 940nm LED biterwa nuburyo bwihariye bwa kamera yo guhiga.Abahigi bashaka gukurikirana inzira zimikino nibikorwa byibinyabuzima bitabangamiye inyamaswa, 940nm LED niyo ihitamo.Itara ryayo ritagaragara ryerekana ko kamera ikomeza kutamenyekana, bigatuma imyitwarire yinyamanswa nyayo kandi yukuri ifatwa kuri kamera.Byongeye kandi, 940nm LED ntishobora gukurura inyamaswa nijoro, bigatuma ihitamo neza gufata amashusho na videwo yibiremwa nijoro bitoroshye.

Kurundi ruhande, 850nm LED irashobora kuba nziza mugukurikirana rusange no kubungabunga umutekano.Nubwo isohora urumuri rutukura rudakunze kugaragara ku bantu, irashobora gutahurwa ninyamaswa zimwe na zimwe zifite ijoro ryinshi ryo kureba nijoro, nkubwoko bumwe na bumwe bwimpongo.Kubwibyo, niba intego yibanze ari ugukumira abarengana cyangwa kugenzura ahantu hagamijwe umutekano, 850nm LED irashobora guhitamo neza kubera urumuri rwayo rugaragara.

Ni ngombwa kumenya ko guhitamo hagati ya 850nm na 940nm LED nabyo bigira ingaruka kumurongo no kumvikanisha ubushobozi bwa kamera bwijoro.Mubisanzwe, 850nm LED itanga urumuri rwiza kandi rurerure ugereranije na 940nm LED.Nyamara, itandukaniro murirusange ni rito, kandi ubucuruzi bwo kongera kutagaragara hamwe na LED 940nm akenshi buruta inyungu nkeya murwego rutangwa na 850nm LED.

Mu gusoza, itandukaniro riri hagati ya 850nm na 940nm LED muri kamera zo guhiga ziratangira kugaragara no kutagaragara.Mugihe LED 850nm itanga urumuri rwiza kandi ruringaniye, LED 940nm itanga itagaragara rwose, bigatuma ihitamo guhitamo kureba inyamaswa no gukurikirana rwihishwa.Gusobanukirwa ibisabwa byihariye byo guhiga cyangwa kugenzura bizagufasha gufata icyemezo neza mugihe uhisemo hagati yubwoko bubiri bwa LED kubwawekamera zo mu gasozi.