광원에 따른 조명기구의 CCT 측정 데이터 및 계산값 비교

As for the lighting plan in architectural space, appropriate illuminance distribution, CCT and CRI must be considered by comfort, work performance and atmosphere. Particularly. CCT is an important element affecting various acts and atmospheres in building space. Therefore, the correct CCT control is necessary for appropriate CCT performance, which is good for a lighting plan. This study considered various CCT calculations and measured tristimulus value of fluorescent lamps and white LED lamps for calculation and analysis. As a result, calculated CCT according to a light sources was different each other. Also, actual CCT was really different from CCT in specifications. Robertson method was inappropriate to calculate CCT of the white LED lamp.