The reimaging optics of the KASINICS (KASI Near Infrared Camera System) includes many transparent components like an entrance window, band-pass filters, and blocking filters. As observational targets or in-field background objects, bright stars may cause optical ghosts that can significantly degrade the system performance of the KASINICS. We estimated analytically the relative brightness of ghost components with respect to a point source and examined the effects of tilting optical components as a method of suppressing ghosts. We also performed numerical ray tracings including all the optical components and found the results are consistent with those of the analytic estimations. We conclude that the KASINICS will not suffer from significant ghost effects with appropriate anti-reflection coatings and fittings for the optical components.

• 이성호(한국천문연구원) | SUNGHO LEE (Korea Astronomy and Space Science Institute)
• 육인수(한국천문연구원) | IN-SOO YUK (Korea Astronomy and Space Science Institute)
• 진호(한국천문연구원) | HO JIN (Korea Astronomy and Space Science Institute)
• 박수종(한국천문연구원) | SOOJONG PAK (Korea Astronomy and Space Science Institute)
• 한정열(한국천문연구원, 과학기술연합대학원대학교) | JEONG-YEOL HAN (Korea Astronomy and Space Science Institute, Major of Astronomy and Space Science, University of Science and Technology)
• 이대희(한국천문연구원) | DAE-HEE LEE (Korea Astronomy and Space Science Institute)
• 공경남(한국천문연구원) | KYUNG-NAM KONG (Korea Astronomy and Space Science Institute)
• 조승현(한국천문연구원) | SEUNG-HYUN CHO (Korea Astronomy and Space Science Institute)
• 박영식(한국천문연구원) | YOUNGSIK PARK (Korea Astronomy and Space Science Institute)
• 박장현(한국천문연구원) | JANG-HYUN PARK (Korea Astronomy and Space Science Institute)
• 한원용(한국천문연구원) | WONYONG HAN (Korea Astronomy and Space Science Institute)