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발광 다이오드(LED)를 이용한 대형 태양전지 판넬 평가용 인공 태양광 구성
정광교,김주현,류재준,이석환,고영수,허산,문성득,이승현,김동현,장미나,김정미,구지은,장지호,Jung, Kwang-Kyo,Kim, Joo-Hyun,Ryu, Jae-Jun,Lee, Seok-Hwan,Ko, Young-Soo,Huh, San,Moon, Sung-Deuk,Lee, Seung-Hyun,Kim, Dong-Hyun,Jang, Mi-Na,Kim, Jeon 한국전기전자재료학회 2012 전기전자재료학회논문지 Vol.25 No.9
We developed a new solar simulator to evaluate a large-scale solar cell using seven kinds of LEDs (Infrared, Red, Yellow, Green, Blue, White and Ultra Violet LED). LED solar simulator can be displaced the existing solar simulator which has several demerits such as high power consumption and short lifetime. We have tried to fabricate LED solar simulator which fulfills the spectrum for AM 1.5G condition, and to verify the feasibility of LED solar simulator.
백색광 LED를 사용한 독서등의 최적 색온도에 따른 사람의 시력 변화 연구
김주현,장원범,이석환,정광교,김동현,김정미,류재준,문성득,이승현,고영수,허산,장미나,정창호,장지호,Kim, Juhyun,Chang, Wonbeom,Lee, Seokhwan,Jung, Kwangkyo,Kim, Donghyun,Kim, Jeongmi,Ryu, Jaejun,Moon, Seongdeuk,Lee, Seunghyun,Ko, Youngsu,Huh, Sa 한국전기전자재료학회 2013 전기전자재료학회논문지 Vol.26 No.1
White light emitting diode (LED) determined the most appropriate color temperature in reading lighting evaluated fatigue degree of eye according to color temperature. The eye fatigue degrees are determined by brightness and color temperature. Therefore, we measured the results of eyes test according to the change of color temperature and brightness. Experiments except for astigmatic corrected visual acuity of 0.8 more and age 20 to 25 years old, male and female college students was conducted in 100 patients. And constant illumination conditions, visual acuity was measured by varying the color temperature. The optometry at 10 minutes in the darkroom adapted eye. And then the temperature of $25{\pm}3$ degrees, the humidity was carried out at $50{\pm}5%$. As a result of typical color temperature of white light (5,600 K) has identification of the readability.