기하 위상 렌즈를 이용한 분산량 조절 색공초점 센서

Abstract

This thesis introduces a novel approach to chromatic confocal sensing by employing the control of chromatic dispersion through geometric phase lenses. Our method significantly improves the traditionally complex lens structures of chromatic confocal sensors, enabling a simple and efficient system. By adjusting the chromatic dispersion, we simulate and demonstrate the capability of our sensor to measure a diverse range of specimens with varying heights and surfaces. The key innovation lies in the precise control of polarization components and the manipulation of the lens distance, allowing for a fine-tuned adjustment of the dispersion quantity. This advancement not only simplifies the sensor design but also enhances its versatility and accuracy in measuring different types of specimens. This research provides the way for more efficient and versatile chromatic confocal sensors, capable of accurately measuring a wide range of specimen heights, thereby broadening the scope of applications in various fields of optical measurement.