조도계를 이용한 LED 면광원의 밝기 균일도 평가

다국어 초록 (Multilingual Abstract)

We used an illuminance meter in order to evaluate brightness uniformity of a LED planar light source inexpensively and compared with the value measured by a luminance meter. We selected two different LED planar light sources: direct-type and edge-type. The measured uniformity of edge-type is more than 0.95 irrespective of the aperture size. However, the uniformity of direct-type LED source is measured differently for aperture size. Since the uniformity of direct-type is affected by the pixel size, the pixel size should be considered in evaluating uniformity. Both the luminance meter and the illuminance meter(combined the barrel and the aperture) showed similar pattern in uniformity and the standard deviation. By improving the aperture and the barrel, the illuminance meter can measure brightness uniformity with to the luminance meter at low cost.

목차 (Table of Contents)

• Abstract
• 1. 서론
• 2. 이론
• 3. 결과
• 4. 결론
• References

참고문헌 (Reference)

1 이미애, "터널조명 측정을 통한 조도와 휘도기반의 조명 비교 연구" 한국조명.전기설비학회 27 (27): 14-19, 2013

2 Paola Iacomussi, "Visual Comfort with LED Lighting" 78 : 729-734, 2015

3 Changmo Lee, "Subjective Appraisals of Discomfort Glare for Luminaire with non-uniform luminance-Effect of luminaire used White LED Light source" 11-14, 2007

4 이진숙, "LED조명기구의 조도․휘도분포 특성 분석에 관한 연구" 한국조명.전기설비학회 22 (22): 1-7, 2008

5 "KS C 7613 Methods of luminance measurements in lighting fields"

6 "KS C 7612 Illuminance measurements for lighting installations"

7 "KS A 3701 Lighting for roads"

8 PietroFiorentin, "Illuminance from Luminance Measurement Experimental Rresults" 1-6, 2011