照(zhao)(zhao)(zhao)明(ming)(ming)反(fan)光(guang)(guang)板(ban)是配合日(ri)光(guang)(guang)燈(deng)(deng)(deng)使(shi)用(yong)，提(ti)高日(ri)光(guang)(guang)燈(deng)(deng)(deng)發(fa)出光(guang)(guang)的(de)利用(yong)率，燈(deng)(deng)(deng)箱反(fan)光(guang)(guang)板(ban)廠家(jia)，一(yi)(yi)般(ban)情(qing)況下，照(zhao)(zhao)(zhao)明(ming)(ming)燈(deng)(deng)(deng)置(zhi)于房間的(de)頂部(bu)，燈(deng)(deng)(deng)光(guang)(guang)圍繞(rao)燈(deng)(deng)(deng)360度角度發(fa)散，其(qi)中只(zhi)有120度約(yue)三分之一(yi)(yi)直接照(zhao)(zhao)(zhao)射(she)到工(gong)作或生活(huo)面利用(yong)，其(qi)他光(guang)(guang)散向了其(qi)它(ta)地方大(da)部(bu)份浪費。為了提(ti)高燈(deng)(deng)(deng)具光(guang)(guang)的(de)利用(yong)率，一(yi)(yi)般(ban)情(qing)況下都(dou)會給燈(deng)(deng)(deng)加一(yi)(yi)個反(fan)光(guang)(guang)罩或者反(fan)射(she)板(ban)；由于照(zhao)(zhao)(zhao)明(ming)(ming)燈(deng)(deng)(deng)是生活(huo)和工(gong)作采(cai)用(yong)得較多(duo)的(de)燈(deng)(deng)(deng)具，燈(deng)(deng)(deng)箱反(fan)光(guang)(guang)板(ban)價(jia)格，所以(yi)日(ri)照(zhao)(zhao)(zhao)明(ming)(ming)反(fan)光(guang)(guang)板(ban)的(de)研究(jiu)(jiu)得到了很多(duo)公司的(de)研究(jiu)(jiu)。

反(fan)光(guang)板(ban)的(de)(de)(de)反(fan)光(guang)是中(zhong)(zhong)(zhong)心區(qu)域亮(liang)，越往邊緣(yuan)越暗(an)，而且(qie)是相對比(bi)較均勻的(de)(de)(de)。手中(zhong)(zhong)(zhong)有反(fan)光(guang)板(ban)的(de)(de)(de)朋友，只需(xu)在(zai)晴天，將反(fan)光(guang)板(ban)對準一個物體試試就(jiu)能(neng)很明(ming)顯的(de)(de)(de)體會到這(zhe)個效果。但是，這(zhe)個亮(liang)度遞減(jian)區(qu)域要比(bi)中(zhong)(zhong)(zhong)心等亮(liang)度區(qu)域小很多。（過于小的(de)(de)(de)反(fan)光(guang)板(ban)可能(neng)不(bu)容易(yi)看清，因為本身中(zhong)(zhong)(zhong)心亮(liang)區(qu)就(jiu)不(bu)大(da)，信陽燈箱(xiang)反(fan)光(guang)板(ban)，加(jia)上(shang)反(fan)光(guang)板(ban)的(de)(de)(de)亮(liang)度遞減(jian)區(qu)域也比(bi)較小，小反(fan)光(guang)板(ban)的(de)(de)(de)這(zhe)個區(qu)域就(jiu)更小）

黑(hei)色(se)(se)反(fan)光(guang)(guang)(guang)板(ban)(ban)(ban)：這(zhe)(zhe)種反(fan)光(guang)(guang)(guang)板(ban)(ban)(ban)是與眾不(bu)同的，因為從技術(shu)上(shang)(shang)講(jiang)它并(bing)不(bu)是反(fan)光(guang)(guang)(guang)板(ban)(ban)(ban)，而是“減光(guang)(guang)(guang)板(ban)(ban)(ban)”。其它反(fan)光(guang)(guang)(guang)板(ban)(ban)(ban)是根據加(jia)光(guang)(guang)(guang)法(fa)工作(zuo)的，目的是為景物添(tian)加(jia)光(guang)(guang)(guang)量。黑(hei)色(se)(se)反(fan)光(guang)(guang)(guang)板(ban)(ban)(ban)則是運(yun)用(yong)(yong)(yong)減光(guang)(guang)(guang)法(fa)來減少光(guang)(guang)(guang)量。為什么要使用(yong)(yong)(yong)黑(hei)色(se)(se)反(fan)光(guang)(guang)(guang)板(ban)(ban)(ban)呢？因為種種原因使我(wo)們不(bu)得不(bu)常常要用(yong)(yong)(yong)討(tao)厭的頂光(guang)(guang)(guang)拍(pai)(pai)攝。采用(yong)(yong)(yong)這(zhe)(zhe)種光(guang)(guang)(guang)線(xian)拍(pai)(pai)出的人(ren)臉常會產(chan)生(sheng)“浣(huan)熊眼”。通過把黑(hei)色(se)(se)反(fan)光(guang)(guang)(guang)板(ban)(ban)(ban)放在你的被攝者頭上(shang)(shang)的辦(ban)法(fa)，可以減少頂光(guang)(guang)(guang)。