Ijisho rya infrared rikoreshwa mu gupima ubushyuhe bw'imbunda

Buri mwaka, Wavelength Infrared yakoraga lens ibihumbi mirongo za infrared za Thermal Imaging Rifle Scopes, zigatangwa ku bigo bizwi cyane ku isi.

Ikimenyetso cy'ubushyuhe gishobora kumenya ibinyabutabire bishyushye biturutse ahantu hakonje karemano hamwe n'ubushyuhe bwabyo butandukanye. Bitandukanye n'ikimenyetso cy'ubushyuhe gisanzwe cyo kureba nijoro, ntigikenera inkunga y'urumuri rw'inyuma kugira ngo gikore ishusho. Ikimenyetso cy'ubushyuhe gishobora gukora ku manywa na nijoro, kikanyura mu mwotsi, mu gihu, mu mukungugu n'izindi mbogamizi zikomoka ku bidukikije. Ibyo bituma kigira akamaro kadasanzwe mu guhiga, gushakisha no gutabara, cyangwa mu bikorwa bya gisirikare.

Ikirahure cya infrared ni kimwe mu bice by'ingenzi kuri scope y'ubushyuhe, gihuzwa na sensor y'ubushyuhe kugira ngo gihindure ishusho ya infrared mo ibimenyetso by'ikoranabuhanga. Hanyuma ibimenyetso bihindurwamo ishusho igaragara kugira ngo yerekanwe kuri ecran ya OLED ku maso y'umuntu. Umucyo, guhindagurika, urumuri rw'ishusho ya nyuma; urwego rwo kumenya, kumenya no kumenya; imikorere mu bidukikije bitandukanye, ndetse n'ubwizigirwa bw'ikikirahure bigirwaho ingaruka na lens ya infrared. Ni ngombwa cyane guhitamo lens ya infrared ikwiye mu ntangiriro y'igishushanyo icyo ari cyo cyose cya scope y'ubushyuhe.

Nubwo lenzi ikwiye ya infrared ari ingenzi cyane ku bushyuhe bwiza, hari n'ingaruka zimwe na zimwe zigomba kwitabwaho.

Uburebure bw'icyerekezo (FL) na F#: Uburebure bw'icyerekezo cya lensi ya infrared bugena urwego rwa DRI rw'icyerekezo cy'ubushyuhe. Mu yandi magambo, ni ukureshya ubasha kubona. 25mm, 35mm, 50mm, 75mm ni bwo burebure bukunze gukoreshwa ku cyerekezo cy'ubushyuhe. F# ni igipimo cy'uburebure bw'icyerekezo cya sisitemu n'umurambararo w'icyerekezo cy'imboni, F# = FL/D. Uko F# ya lensi ari nto, ni ko icyyerekezo cy'imboni kiba kinini. Umucyo mwinshi wakusanywa na lensi mu gihe ikiguzi kizamuka icyarimwe. Muri rusange lensi ifite F#1.0-1.3 ikwiriye gukoreshwa mu cyerekezo cy'ubushyuhe.

Ubwoko bwa sensor: Sensor ya infrared ifite igice kinini cy'ikiguzi cyose cya scope y'ubushyuhe. Igena ubugari ushobora kubona ukoresheje scope y'ubushyuhe. Menya neza ko lens ihuye n'ingano ya sensor n'ingano ya pikseli.

MTF na RI: MTF isobanura Modulation Transfer Function, naho RI isobanura Relative Illumination. Bigenwa mu gihe cyo gushushanya, bigaragaza ubwiza bw'ishusho y'ikirahure. Mu yandi magambo, ni ubwiza bushoboka kubona. Iyo bitakozwe kandi bigateranywa neza, MTF nyayo na RI curve byaba biri hasi ugereranyije n'ibyakozwe. Rero menya neza ko MTF na RI bya lens ya infrared bipimwe mbere yo kubyakira.

Gupfuka: Muri rusange igice cyo hanze cy'ikirahuri gikozwe muri germanium, yoroshye kandi yoroshye gushwara. Gupfuka bisanzwe bya AR (anti-reflection) ntacyo bizafasha kuri ibyo, gupfuka kwa DLC (Diamond Like Carbon) cyangwa HD (High Durable) byaba byiza bikozwe mu bidukikije bikomeye. Ariko nyamuneka menya ko ihererekanya ryose rya lens ya infrared ryagabanuka icyarimwe. Bityo rero ugomba kuringaniza ibintu bibiri kugira ngo ugere ku musaruro mwiza.

Ubudahangarwa: Ntabwo nkunda izindi porogaramu zo gufata amashusho y'ubushyuhe, icyuma gipima ubushyuhe gishyizwe ku mbunda kigomba kuba gishobora kwihanganira guhindagura gukomeye guterwa no kurasa imbunda. Ikirahuri cyose cya infrared cya scope y'ubushyuhe dutanga gishobora kwihanganira >1200g kidahangarwa n'ubushyuhe.