Korean Journal of Optics and Photonics (한국광학회지)

Optical Society of Korea (한국광학회)
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Optical Design of a Laser Scanning System Stable Against Wavelength and Temperature Variations

파장과 온도변화에 안정한 레이저 주사광학계 설계

  • Kim, Da Ae (Dept. of Laser and Optical Information Engineering, Cheongju University) ;
  • Lee, Jong-Ung (Dept. of Laser and Optical Information Engineering, Cheongju University)
  • 김다애 (청주대학교 레이저광정보공학과) ;
  • 이종웅 (청주대학교 레이저광정보공학과)
  • Received : 2015.12.22
  • Accepted : 2016.01.25
  • Published : 2016.02.25
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Abstract

The characteristics of an optical system vary depending on wavelength and ambient temperature. Based on the thin-lens approximation, we investigate the conditions for stabilizing an optical system against wavelength and temperature variations at the same time. The conditions are applied to designing a laser scanning system consisting of two lenses. The change in the effective focal length of the scanning system against wavelength and temperature variations is very small, as expected.

광학계의 특성은 파장과 온도에 따라 변화한다. 이 연구에서는 얇은 렌즈 근사를 이용하여 특정한 기준파장과 기준온도에서 파장과 온도변화에 안정한 광학계를 설계하는 방법에 대하여 연구하고, 이를 기반으로 2매의 렌즈로 구성된 레이저 주사광학계를 설계하였다. 설계된 레이저 주사광학계는 기대한 바와 같이 파장과 온도 변화에 따른 유효초점거리의 변화가 매우 적음을 확인 할 수 있었다.

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