Journal of Institute of Control, Robotics and Systems (제어로봇시스템학회논문지)

Institute of Control, Robotics and Systems (제어로봇시스템학회)
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A Parallel Mode Confocal System using a Micro-Lens and Pinhole Array in a Dual Microscope Configuration

이중 현미경 구조를 이용한 마이크로 렌즈 및 핀홀 어레이 기반 병렬 공초점 시스템

  • Bae, Sang Woo (School of Electronics Engineering, Kyungpook National University) ;
  • Kim, Min Young (School of Electronics Engineering, Kyungpook National University) ;
  • Ko, Kuk Won (Department of Information and Communication Engineering, Sunmoon University) ;
  • Koh, Kyung Chul (Department of Information and Communication Engineering, Sunmoon University)
  • Received : 2013.08.20
  • Accepted : 2013.10.04
  • Published : 2013.11.01
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Abstract

The three-dimensional measurement method of confocal systems is a spot scanning method which has a high resolution and good illumination efficiency. However, conventional confocal systems had a weak point in that it has to perform XY axis scanning to achieve FOV (Field of View) vision through spot scanning. There are some methods to improve this problem involving the use of a galvano mirror [1], pin-hole array, etc. Therefore, in this paper we propose a method to improve a parallel mode confocal system using a micro-lens and pin-hole array in a dual microscope configuration. We made an area scan possible by using a combination MLA (Micro Lens Array) and pin-hole array, and used an objective lens to improve the light transmittance and signal-to-noise ratio. Additionally, we made it possible to change the objective lens so that it is possible to select a lens considering the reflection characteristic of the measuring object and proper magnification. We did an experiment using 5X, 2.3X objective lens, and did a calibration of height using a VLSI calibration target.

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