防爆紅外照相機是通過(guo)光(guang)學系統將(jiang)影(ying)(ying)像(xiang)(xiang)聚焦在成(cheng)(cheng)(cheng)像(xiang)(xiang)元件CCD/ CMOS 上(shang)，通過(guo)A/D轉(zhuan)(zhuan)(zhuan)(zhuan)換(huan)器將(jiang)每個(ge)像(xiang)(xiang)素上(shang)光(guang)電(dian)信(xin)號(hao)轉(zhuan)(zhuan)(zhuan)(zhuan)變(bian)成(cheng)(cheng)(cheng)數(shu)碼(ma)信(xin)號(hao)，再(zai)經(jing)(jing)DSP處(chu)理(li)(li)成(cheng)(cheng)(cheng)數(shu)碼(ma)圖像(xiang)(xiang)，存(cun)(cun)儲(chu)到(dao)存(cun)(cun)儲(chu)介質當中(zhong)。 光(guang)線(xian)從鏡(jing)頭(tou)(tou)進入相機，CCD進行濾(lv)色、感(gan)光(guang)（光(guang)電(dian)轉(zhuan)(zhuan)(zhuan)(zhuan)化(hua)），按(an)照一(yi)定的排(pai)列方式將(jiang)拍攝(she)物(wu)體(ti)“分(fen)解"成(cheng)(cheng)(cheng)了一(yi)個(ge)一(yi)個(ge)的像(xiang)(xiang)素點，這些像(xiang)(xiang)素點以模擬圖像(xiang)(xiang)信(xin)號(hao)的形式轉(zhuan)(zhuan)(zhuan)(zhuan)移到(dao)“模數(shu)轉(zhuan)(zhuan)(zhuan)(zhuan)換(huan)器"上(shang)，轉(zhuan)(zhuan)(zhuan)(zhuan)換(huan)成(cheng)(cheng)(cheng)數(shu)字信(xin)號(hao)，傳送到(dao)圖像(xiang)(xiang)處(chu)理(li)(li)器上(shang)，處(chu)理(li)(li)成(cheng)(cheng)(cheng)真正的圖像(xiang)(xiang)，之(zhi)后壓縮存(cun)(cun)儲(chu)到(dao)存(cun)(cun)儲(chu)介質中(zhong)。景物(wu)的反(fan)射光(guang)線(xian)經(jing)(jing)過(guo)鏡(jing)頭(tou)(tou)的會(hui)聚，在膠片(pian)上(shang)形成(cheng)(cheng)(cheng)潛應影(ying)(ying)，這個(ge)潛影(ying)(ying)是光(guang)和膠片(pian)上(shang)的乳劑產生(sheng)(sheng)化(hua)學反(fan)應的結果。再(zai)經(jing)(jing)過(guo)顯影(ying)(ying)和定影(ying)(ying)處(chu)理(li)(li)就形成(cheng)(cheng)(cheng)了影(ying)(ying)像(xiang)(xiang)。攝(she)象頭(tou)(tou)的數(shu)碼(ma)影(ying)(ying)像(xiang)(xiang)和膠片(pian)成(cheng)(cheng)(cheng)像(xiang)(xiang)原理(li)(li)不同(tong)，是經(jing)(jing)過(guo)鏡(jing)頭(tou)(tou)成(cheng)(cheng)(cheng)像(xiang)(xiang)在CCD上(shang)，經(jing)(jing)過(guo)CCD的光(guang)電(dian)轉(zhuan)(zhuan)(zhuan)(zhuan)換(huan)，生(sheng)(sheng)成(cheng)(cheng)(cheng)視頻信(xin)號(hao)，再(zai)經(jing)(jing)過(guo)顯示(shi)屏電(dian)光(guang)轉(zhuan)(zhuan)(zhuan)(zhuan)換(huan)，才生(sheng)(sheng)成(cheng)(cheng)(cheng)圖像(xiang)(xiang)。