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Design of a Telecentric Lens with a Smartphone Camera to Utilize Machine Vision

머신비전을 위한 스마트폰용 텔레센트릭 렌즈의 설계

  • Choi, Yeon-Chan (Department of Photonics & Sensors Engineering, Hannam University) ;
  • Rim, Cheon-Seog (Department of Photonics & Sensors Engineering, Hannam University)
  • 최연찬 (한남대학교 광.센서공학과) ;
  • 임천석 (한남대학교 광.센서공학과)
  • Received : 2018.07.20
  • Accepted : 2018.08.08
  • Published : 2018.08.25

Abstract

A generalized structural design equation can be used to simplify and systematize a telecentric lens system composed of multiple lenses, as a creative design method of the authors. Through this structural equation, we have investigated the feasibility and design methodology of a telecentric lens equipped with a conventional smartphone camera for machine vision. As a result, we could verify and present a useful, generalized structural equation termed the $f{\theta}$ formula, being able to divide and combine the whole telecentric lens system into two modularized lens groups.

본 연구에서는 다수의 요소렌즈들로 이루어진 렌즈시스템을 단순화 및 구조화할 수 있는, 저자들만의 독창적인 설계기법인, 일반화된 구조설계 방정식을 제안하고 이를 통해 스마트폰 카메라 렌즈와 연동될 수 있는 텔레센트릭 렌즈의 존재 가능성 및 설계방법을 탐구하였다. 결과적으로, 텔레센트릭 렌즈 시스템을 모듈화하고 조립설계 할 수 있는 $f{\theta}$ 공식을 도출 및 검증할 수 있었고, 이 공식으로부터 공장자동화와 같은 머신비전에 효과적으로 활용될 수 있는 스마트폰용 텔레센트릭 렌즈를 설계할 수 있었다.

Keywords

References

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