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  • 09월 10일 16시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제124회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Analysis of the Visual and Nonvisual Properties of a CCT-Tunable White LED on Human Retinal Photoreceptors

2019년 8월 28일 16시 17분 34초
INOR.P-113 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
10월 17일 (목요일) 11:00~12:30
Inorganic Chemistry
저자 및
Yun Jae Eo, Keyong Nam Lee, Young rag Do*
Department of Applied Chemistry, Kookmin University, Korea
The advent of artificial lighting source, such as incandescent bulbs, fluorescent tubes and light-emitting diodes (LEDs), has changed our lives dramatically. In recent years, the efficiency of these types of lighting, i.e., the visual properties, and the effects of artificial lighting on humans, such as their nonvisual properties, have become increasingly important. Lately, the spectral functions, quantities and metrics pertaining to retinal photoreceptors were defined as an international standard. In particular, intrinsically photosensitive retinal ganglion cells (ipRGCs), which contain the photopigment melanopsin, are known as a type of photoreceptor that exhibits nonvisual properties by means of incident light. In this study, we fabricated phosphor-converted LEDs (pc-LEDs) in order to realize a white indoor lighting that offers varying correlated-color temperatures (CCTs). Tetra-chromatic (red, amber, green and blue) multi-packaged white LEDs were able to achieve white light with a CCT from 2,000 K to 10,000 K. In addition, implementable white spectral power distributions (SPDs) were obtained using an illuminance spectrophotometer, and we analyzed the visual and nonvisual properties with the spectral sensitivity functions of the photoreceptors.