About the Book
chulcheo: Wikipedia. peiji: 25. jang: gwang-gonghae, balgwang, bul, bich-ui sin, eodum-ui sin, jomyeong, balgwang daiodeu, bichgonghae, la, apollon, jiguui sigan, gwangnyeon, bich-ui soglyeog, bisyunu, gongmyeonghyeong-gwang, baeg-yeoldeung, leilli sanlan, yangcho, hyeong-gwangdeung, diseuko bol, myeong-am gyeong-gyeseon, galodeung, naeng-eumgeuggwan, ilgwang-yog, bulchum, lu labeuda, hekate, baeglaiteu, sijeong, gwangjeonja gonghag, eleboseu, seonghwa, keulom keuluaihi, poibe, byeolhaneul chajgi undong, nigseu, bulkkochnol-i, jeongye balgwang, ne-on sain, daljibtaeugi, gwangcho, sollideu seuteiteu laiting, jeongugbamhaneulgyesoggwanchal, sueundeung, chogi inlyuui bul-ui iyong, haesbich, geulimja, aton, apeb, chaegwang, teumsaebichsal, saeg-ondo, hwido, hwaesbulssamnol-i, jwibulnol-i, jodo, kug, cheongsacholong, ne-ondeung, balhwajeom, saegcha, gulgwangseong, syangdeullie, geuneul, gwangbun, gwangsi, jae, gaseudeung, iloli, gayeonseong. balchwe: balgwang daiodeu (f gu ngdiode)neun sunbanghyang-eulo jeon-ab-eul gahaess-eul ttae balgwanghaneun bandoche sojaida. LED (, el-idi)lagodo bullinda. balgwang wonlineun jeongye balgwang hyogwaleul iyonghago issda. ttohan sumyeongdo baeg-yeoljeonguboda sangdanghi gilda. balgwangsaeg-eun sayongdoeneun jaelyoe ttalaseo daleumyeo jaoeseon yeong-yeog-eseo gasigwangseon, jeog-oeseon yeong-yeogkkaji balgwanghaneun geos-eul jejohal su issda. illinoi daehag-ui nig holoniag-i 1962nyeon-e choecholo gaebalhayeossda. oneulnalkkaji yeoleo gaji yongdolo sayongdoeeoss-eumyeo hyanghu hyeong-gwangdeung-ina jeonguleul daechehal gwang-won-eulo gidaedoego issda. LED PN jeobhab munseoleul chamgohasibsio. balgwang daiodeuui gujowa baendeu gujoui mosigdo balgwang daiodeuui geugseongbalgwang daiodeuneun bandocheleul iyonghan PN jeobhab-ilago bullineun gujolo mandeul-eojyeo issda. balgwang-eun PN jeobhab-eseo jeonjaga gajineun eneojiga jigjeob bich eneojilo byeonhwandoegi ttaemun-e geosijeog-eulo yeol-ina undong-eneojileul pil-yolo haji anhneunda....
