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1. (WO2011155757) LED ILLUMINATION OPTICAL SYSTEM
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2011/155757    International Application No.:    PCT/KR2011/004156
Publication Date: 15.12.2011 International Filing Date: 07.06.2011
IPC:
F21V 14/06 (2006.01)
Applicants: POWER OPTICS CO., LTD [KR/KR]; 1027-22 Hogye 1-dong, Dongan-gu, Anyang-si Gyeonggi-do 431-848 (KR) (For All Designated States Except US).
LEE, Sang-Geol [KR/KR]; (KR) (For US Only).
KIM, Young-Han [KR/KR]; (KR) (For US Only)
Inventors: LEE, Sang-Geol; (KR).
KIM, Young-Han; (KR)
Agent: JEONG, Hwoi-Hwan; Suite 713 Cheongsa Offistel 915, Dunsan-dong, Seo-gu Daejeon 302-120 (KR)
Priority Data:
10-2010-0053560 07.06.2010 KR
Title (EN) LED ILLUMINATION OPTICAL SYSTEM
(FR) SYSTÈME OPTIQUE D'ÉCLAIRAGE À DEL
(KO) 엘이디 조명 광학 시스템
Abstract: front page image
(EN)The present invention relates to an illumination optical system which uses infrared ray LEDs as a light source, and in which the optical system is coupled to the LED light source, and in which the angle of view to be infrared illuminated is adjustable in accordance with a zooming operation of the optical system. For this, an illumination system comprises: a plurality of lens groups sequentially arranged along an optical axis, from an LED light source side toward an illumination direction, wherein the lens groups comprises a first lens group (G1) having a positive refractive power; a second lens group (G2) having a positive refractive power; and a third lens group (G3) having a positive refractive power, wherein the second lens group (G2) moves to change the angle of irradiation for illumination. According to the present invention, an illumination optical system using infrared ray LEDs, which enables irradiation area to correspond to the size of the subject and to the variation of the distance to the subject, is provided with improved irradiation efficiency.
(FR)La présente invention concerne un système optique d'éclairage, qui utilise des DEL infrarouges comme source lumineuse, dans lequel le système optique est couplé à la source lumineuse à DEL, et dans lequel l'angle de vue pour l'éclairage infrarouge est réglable en fonction d'un changement de focale du système optique. A cette fin, un système d'éclairage comprend : une pluralité de groupes de lentilles agencés séquentiellement le long d'un axe optique, depuis un côté de source lumineuse à DEL vers une direction d'éclairage, les groupes de lentilles comprenant un premier groupe de lentilles (G1) à réfringence positive ; un deuxième groupe de lentilles (G2) à réfringence positive ; et un troisième groupe de lentilles (G3) à réfringence positive, le deuxième groupe de lentilles (G2) étant mobile afin de changer l'angle d'irradiation d'éclairage. Selon la présente invention, un système optique d'éclairage utilisant des DEL infrarouges, permettant de faire correspondre la zone d'irradiation avec la taille du sujet et avec les variations de distance du sujet, est doté d'une efficacité d'irradiation améliorée.
(KO)본 발명은, 적외선 LED를 광원으로 하여 광학계를 LED광원과 결합하여 적외선 조명을 하고자 하는 화각을 광학계의 변배에 따라 조절 가능하게 한 조명 광학 시스템에 관한 것으로서, 이를 위한 구성은, 광축을 따라서 광원(LED) 측으로부터 조명하고자 하는 방향으로 순차적으로 다수의 렌즈 군을 구성하는 조명 시스템에 있어서, 양의 굴절력을 갖는 제 1 렌즈군(G1)과; 양의 굴절력을 갖는 제 2 렌즈군(G2)과; 양의 굴절력을 갖는 제 3 렌즈군(G3);을 포함하여 구성하며, 상기 제 2 렌즈군(G2)을 움직여 조명하고자 하는 조사각도를 변경하도록 하는 것을 특징으로 한다. 이에 의할 경우에는 피사체의 크기 및 피사체와의 거리 변화에 상응하는 조사 면적을 갖도록 할 수 있는 적외선 LED 조명 광학 시스템을 제공할 수 있어 조사 효율을 높일 수 있게 된다.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LR, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: Korean (KO)
Filing Language: Korean (KO)