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논문 기본 정보

자료유형
학술저널
저자정보
Ju-Yeop Yim (Tech University of Korea) Chul-Woo Park (Tech University of Korea) Mee-Suk Jung (Tech University of Korea)
저널정보
한국광학회 Current Optics and Photonics Current Optics and Photonics Vol.7 No.6
발행연도
2023.12
수록면
755 - 760 (6page)

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초록· 키워드

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In this paper, an illumination optical system that can mitigate the saturation phenomenon in the center of an image (caused by the typical flexible-endoscope illumination system using LEDs with Lambertian light distribution) is designed. When an LED with Lambertian light distribution is used as a light source, the amount of light in the center of the endoscopic illumination system is relatively high, compared to the periphery, causing saturation in the image. Since this phenomenon causes difficulty in detecting the patient’s lesion, it is necessary to find a lighting-system design that can alleviate the saturation phenomenon. Therefore, in this paper a lighting system with bat-wing light distribution, which can lower the intensity at the center and secure the maximum amount of light at the maximum light distribution angle, is designed. In addition, to check the performance of the designed lighting system, a simulation of illumination and luminance is conducted for a system using a common aspherical lens with otherwise the same components. As a result, it is confirmed that the lighting system designed in this paper effectively reduces the luminance value at the center and secures more luminance values at the periphery than the familiar lighting system.

목차

Ⅰ. INTRODUCTION
Ⅱ. METHOD
Ⅲ. CONCLUSION
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