戶(hu)(hu)(hu)(hu)外(wai)景(jing)(jing)(jing)(jing)觀(guan)(guan)(guan)(guan)(guan)燈(deng)(deng)(deng)(deng)光(guang)(guang)(guang)(guang)源(yuan)是(shi)一(yi)種(zhong)可(ke)將(jiang)電能轉變為(wei)(wei)(wei)光(guang)(guang)(guang)(guang)能的半(ban)導體發光(guang)(guang)(guang)(guang)器件，屬于固(gu)態光(guang)(guang)(guang)(guang)源(yuan)。特色(se)(se)景(jing)(jing)(jing)(jing)觀(guan)(guan)(guan)(guan)(guan)燈(deng)(deng)(deng)(deng)光(guang)(guang)(guang)(guang)源(yuan)在(zai)(zai)20世(shi)紀60年代初期問世(shi)，當時的戶(hu)(hu)(hu)(hu)外(wai)景(jing)(jing)(jing)(jing)觀(guan)(guan)(guan)(guan)(guan)燈(deng)(deng)(deng)(deng)光(guang)(guang)(guang)(guang)源(yuan)以紅(hong)色(se)(se)為(wei)(wei)(wei)主(zhu)，發光(guang)(guang)(guang)(guang)效率(lv)很低，光(guang)(guang)(guang)(guang)通量很小，只能作(zuo)指示燈(deng)(deng)(deng)(deng)和(he)儀表(biao)顯示器使用。隨著管芯材料、結構和(he)封裝(zhuang)技術(shu)(shu)的不斷進步，特色(se)(se)景(jing)(jing)(jing)(jing)觀(guan)(guan)(guan)(guan)(guan)燈(deng)(deng)(deng)(deng)光(guang)(guang)(guang)(guang)源(yuan)顏色(se)(se)品種(zhong)增多，光(guang)(guang)(guang)(guang)效大幅(fu)度提高(gao)，目前(qian)的紅(hong)色(se)(se)戶(hu)(hu)(hu)(hu)外(wai)景(jing)(jing)(jing)(jing)觀(guan)(guan)(guan)(guan)(guan)燈(deng)(deng)(deng)(deng)光(guang)(guang)(guang)(guang)源(yuan)光(guang)(guang)(guang)(guang)效已達到(dao)(dao)(dao)100lm/W，綠(lv)色(se)(se)戶(hu)(hu)(hu)(hu)外(wai)景(jing)(jing)(jing)(jing)觀(guan)(guan)(guan)(guan)(guan)燈(deng)(deng)(deng)(deng)光(guang)(guang)(guang)(guang)源(yuan)也達到(dao)(dao)(dao)501m/W，單個(ge)(ge)戶(hu)(hu)(hu)(hu)外(wai)景(jing)(jing)(jing)(jing)觀(guan)(guan)(guan)(guan)(guan)燈(deng)(deng)(deng)(deng)光(guang)(guang)(guang)(guang)源(yuan)的光(guang)(guang)(guang)(guang)通量可(ke)達到(dao)(dao)(dao)幾(ji)十流明(ming)。戶(hu)(hu)(hu)(hu)外(wai)景(jing)(jing)(jing)(jing)觀(guan)(guan)(guan)(guan)(guan)燈(deng)(deng)(deng)(deng)按照離(li)地(di)面(mian)的距離(li)可(ke)以分(fen)為(wei)(wei)(wei)矮個(ge)(ge)、中個(ge)(ge)、高(gao)個(ge)(ge)：矮個(ge)(ge)：矮個(ge)(ge)戶(hu)(hu)(hu)(hu)外(wai)景(jing)(jing)(jing)(jing)觀(guan)(guan)(guan)(guan)(guan)燈(deng)(deng)(deng)(deng)可(ke)直(zhi)接嵌入地(di)面(mian)或者藏(zang)在(zai)(zai)階梯里(li)、隱藏(zang)在(zai)(zai)座椅(yi)下、置于景(jing)(jing)(jing)(jing)觀(guan)(guan)(guan)(guan)(guan)小品里(li)。中個(ge)(ge)：中個(ge)(ge)戶(hu)(hu)(hu)(hu)外(wai)景(jing)(jing)(jing)(jing)觀(guan)(guan)(guan)(guan)(guan)燈(deng)(deng)(deng)(deng)可(ke)以變身成竹子或可(ke)愛的球，無(wu)論如何(he)變化，都讓(rang)人(ren)忍(ren)不住駐(zhu)足欣(xin)賞(shang)。高(gao)個(ge)(ge)：高(gao)個(ge)(ge)戶(hu)(hu)(hu)(hu)外(wai)景(jing)(jing)(jing)(jing)觀(guan)(guan)(guan)(guan)(guan)燈(deng)(deng)(deng)(deng)，經(jing)常在(zai)(zai)大街、公(gong)園(yuan)或小區里(li)，一(yi)路陪你前(qian)行(xing)。城(cheng)(cheng)市(shi)里(li)的景(jing)(jing)(jing)(jing)觀(guan)(guan)(guan)(guan)(guan)設(she)計(ji)(ji)(ji)無(wu)處不在(zai)(zai)，景(jing)(jing)(jing)(jing)觀(guan)(guan)(guan)(guan)(guan)作(zuo)為(wei)(wei)(wei)城(cheng)(cheng)市(shi)景(jing)(jing)(jing)(jing)象，是(shi)城(cheng)(cheng)市(shi)的延伸和(he)附屬。作(zuo)為(wei)(wei)(wei)景(jing)(jing)(jing)(jing)觀(guan)(guan)(guan)(guan)(guan)設(she)計(ji)(ji)(ji)師(shi)，從(cong)事的工作(zuo)領域涉及環(huan)境景(jing)(jing)(jing)(jing)觀(guan)(guan)(guan)(guan)(guan)建(jian)設(she)的諸多要(yao)素，需要(yao)從(cong)業(ye)人(ren)員具有(you)(you)較好(hao)的空間想(xiang)象力(li)和(he)創(chuang)作(zuo)力(li)、表(biao)現(xian)能力(li)，其專業(ye)及核心是(shi)景(jing)(jing)(jing)(jing)觀(guan)(guan)(guan)(guan)(guan)與風(feng)景(jing)(jing)(jing)(jing)園(yuan)林(lin)(lin)規劃及設(she)計(ji)(ji)(ji)，其相關專業(ye)及知識包括城(cheng)(cheng)市(shi)規劃、生態學(xue)(xue)、環(huan)境藝術(shu)(shu)、建(jian)筑學(xue)(xue)、園(yuan)林(lin)(lin)工程學(xue)(xue)、植物學(xue)(xue)等等。　戶(hu)(hu)(hu)(hu)外(wai)景(jing)(jing)(jing)(jing)觀(guan)(guan)(guan)(guan)(guan)燈(deng)(deng)(deng)(deng)是(shi)現(xian)代景(jing)(jing)(jing)(jing)觀(guan)(guan)(guan)(guan)(guan)設(she)計(ji)(ji)(ji)中不可(ke)缺(que)少的部(bu)分(fen)，它(ta)不僅(jin)自身具有(you)(you)較高(gao)的觀(guan)(guan)(guan)(guan)(guan)賞(shang)性，還強調藝術(shu)(shu)燈(deng)(deng)(deng)(deng)的景(jing)(jing)(jing)(jing)觀(guan)(guan)(guan)(guan)(guan)與景(jing)(jing)(jing)(jing)區歷史文化、周圍環(huan)境的協調統(tong)一(yi)。