一、紅外截止濾光片是什么

紅外截止濾光片是一種應用于過(guo)濾(lv)紅(hong)(hong)(hong)外波段(duan)的(de)(de)濾(lv)鏡。紅(hong)(hong)(hong)外截止(zhi)(zhi)濾(lv)光(guang)(guang)片(pian)(pian)利用精密光(guang)(guang)學鍍(du)(du)膜技(ji)術在白玻璃、藍玻璃或樹脂片(pian)(pian)等光(guang)(guang)學基片(pian)(pian)上交替鍍(du)(du)上高(gao)低折射率的(de)(de)光(guang)(guang)學膜。由(you)于光(guang)(guang)線(xian)進入鏡頭(tou)后，可(ke)見光(guang)(guang)和紅(hong)(hong)(hong)外光(guang)(guang)經折射在不(bu)同的(de)(de)靶(ba)(ba)面成像(xiang)(xiang)，紅(hong)(hong)(hong)外光(guang)(guang)會在可(ke)見光(guang)(guang)成像(xiang)(xiang)的(de)(de)靶(ba)(ba)面形成虛像(xiang)(xiang)，影(ying)響圖(tu)像(xiang)(xiang)的(de)(de)顏色和質量。紅(hong)(hong)(hong)外截止(zhi)(zhi)濾(lv)光(guang)(guang)片(pian)(pian)可(ke)通過(guo)實現近紅(hong)(hong)(hong)外光(guang)(guang)區截止(zhi)(zhi)以(yi)消除紅(hong)(hong)(hong)外光(guang)(guang)對成像(xiang)(xiang)的(de)(de)影(ying)響，是高(gao)性(xing)能攝像(xiang)(xiang)頭(tou)的(de)(de)必備組件。

該圖片由注冊用戶"天空之城"提供，版權聲明反饋

二、紅外截止濾光片的用途

紅(hong)(hong)(hong)(hong)外(wai)截止濾光(guang)(guang)(guang)片下(xia)游終端產品目前對于(yu)圖像(xiang)的(de)成(cheng)像(xiang)質量要求不(bu)高，不(bu)需(xu)要考慮空間濾波，而(er)關注的(de)是(shi)光(guang)(guang)(guang)波濾波（即紅(hong)(hong)(hong)(hong)外(wai)光(guang)(guang)(guang)抑制）。紅(hong)(hong)(hong)(hong)外(wai)光(guang)(guang)(guang)抑制是(shi)圖像(xiang)傳感(gan)器必備的(de)功能之一(yi)，這是(shi)因(yin)為(wei)CCD/CMOS對光(guang)(guang)(guang)的(de)感(gan)應(ying)(ying)和人(ren)(ren)眼(yan)不(bu)同，人(ren)(ren)眼(yan)只能看到380-780mm的(de)可(ke)見(jian)光(guang)(guang)(guang)，而(er)CCD/CMOS則可(ke)以感(gan)應(ying)(ying)紅(hong)(hong)(hong)(hong)外(wai)光(guang)(guang)(guang)和紫外(wai)光(guang)(guang)(guang)，尤其對紅(hong)(hong)(hong)(hong)外(wai)光(guang)(guang)(guang)十分敏感(gan)，因(yin)此，需(xu)要利用紅(hong)(hong)(hong)(hong)外(wai)截止濾光(guang)(guang)(guang)片對紅(hong)(hong)(hong)(hong)外(wai)光(guang)(guang)(guang)加以抑制，并保(bao)持可(ke)見(jian)光(guang)(guang)(guang)的(de)高透過，將CCD/CMOS對光(guang)(guang)(guang)的(de)感(gan)應(ying)(ying)接近于(yu)人(ren)(ren)的(de)眼(yan)睛，從而(er)使拍攝的(de)圖像(xiang)也符合眼(yan)睛的(de)感(gan)應(ying)(ying)。

由此可見，通(tong)過(guo)在(zai)CCD/CMOS成(cheng)(cheng)(cheng)像(xiang)(xiang)(xiang)系統中加(jia)入紅外(wai)(wai)截(jie)止濾光片(pian)(pian)，可有(you)效阻擋(dang)該部(bu)分干擾成(cheng)(cheng)(cheng)像(xiang)(xiang)(xiang)質量的(de)(de)紅外(wai)(wai)光，并保持可見光高透(tou)過(guo)，可使(shi)所成(cheng)(cheng)(cheng)影像(xiang)(xiang)(xiang)更加(jia)符合(he)人眼(yan)的(de)(de)最(zui)佳感(gan)覺。紅外(wai)(wai)截(jie)止濾光片(pian)(pian)應(ying)用(yong)(yong)領(ling)域(yu)為手機攝像(xiang)(xiang)(xiang)頭電腦攝像(xiang)(xiang)(xiang)頭、車(che)載攝像(xiang)(xiang)(xiang)頭等鏡(jing)頭系統，也(ye)可應(ying)用(yong)(yong)于數(shu)碼相機、數(shu)碼攝像(xiang)(xiang)(xiang)機等領(ling)域(yu)以(yi)及(ji)監控系統等絕(jue)大多數(shu)涉及(ji)CCD/CMOS成(cheng)(cheng)(cheng)像(xiang)(xiang)(xiang)系統的(de)(de)領(ling)域(yu)，最(zui)終(zhong)達到利用(yong)(yong)RCF消(xiao)除紅外(wai)(wai)光線對CCD/CMOS成(cheng)(cheng)(cheng)像(xiang)(xiang)(xiang)的(de)(de)影響，此外(wai)(wai)，終(zhong)端產(chan)品還可通(tong)過(guo)濾除紅外(wai)(wai)光提升成(cheng)(cheng)(cheng)像(xiang)(xiang)(xiang)質，使(shi)之(zhi)成(cheng)(cheng)(cheng)像(xiang)(xiang)(xiang)更符合(he)人眼(yan)的(de)(de)視覺體驗(yan)。

紅外截止濾光片對于下(xia)游(you)終端產(chan)(chan)品(pin)存在不可替代性(xing)，未來紅外截(jie)止(zhi)濾(lv)光(guang)片(pian)的產(chan)(chan)品(pin)結構隨下(xia)游(you)產(chan)(chan)品(pin)的性(xing)能(neng)的提(ti)升(sheng)將(jiang)更(geng)為細分代CCD/CMOS系統對紅外截(jie)止(zhi)濾(lv)光(guang)片(pian)的要(yao)求(qiu)是表面質量更(geng)高、規格更(geng)標準化、制造成本更(geng)低。

紅外截止濾光片行業(ye)(ye)下游以消費類電子產品為主要應用領域（例如數碼相(xiang)機(ji)、數碼攝像(xiang)機(ji)、視頻監控攝像(xiang)頭等），隨著智(zhi)能手(shou)機(ji)、車載攝像(xiang)、安防監控、智(zhi)能家居等行業(ye)(ye)持續高速發展，高清攝像(xiang)頭的市場需求(qiu)(qiu)旺(wang)盛，極大地帶(dai)動(dong)了IRCF的市場需求(qiu)(qiu)。