Korean Journal of Optics and Photonics (한국광학회지)

Optical Society of Korea (한국광학회)
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Optical Design of a Collimator Lens That Is Very Stable Against Chromatic Variation

파장변화에 매우 안정한 시준렌즈 설계

  • Lee, So-Young (Dept. of Laser and Optical Information Engineering, Cheongju University) ;
  • Lee, Jong-Ung (Dept. of Laser and Optical Information Engineering, Cheongju University)
  • 이소영 (청주대학교 레이저광정보공학과) ;
  • 이종웅 (청주대학교 레이저광정보공학과)
  • Received : 2016.12.09
  • Accepted : 2017.02.14
  • Published : 2017.04.25
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Abstract

To minimize chromatic variations across a wavelength band, we suggest a new design that corrects the first- and second-order wavelength derivatives of the refractive power. Based on this method, a diffraction-limited collimator is designed. The design is very stable against wavelength change, as expected. The chromatic change of the effective focal length is less than 0.002% in the wavelength range from 360 to 410 nm.

특정한 파장대역에서 파장변화에 따른 굴절능의 변화를 1차, 2차 미분까지 보정하여 기준파장과 그 인근 파장 대역에서 굴절능의 변화가 매우 적도록 안정화된 광학계를 설계하는 방법에 대하여 연구하고, 이를 적용하여 회절한계의 시준렌즈를 설계하였다. 설계된 광학계는 파장 변화에 대하여 매우 안정하였고, 파장 360~410 nm 대역에서 유효초점거리의 변화가 0.002% 이내로 매우 적었다.

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References

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