CAJ | 학술논문

为了解决现有镜面偏心测量设备存在的问题，本文研究了一种采用切换镜头和调焦相结合的方法来设计的镜面偏心测量光学系统，使用这个光学系统，既能使被测镜面的曲率半径扩展到－∞～＋∞范围，又能保证测量精度。通过Lighttools软件对这个光学系统进行光线追迹，分析其杂光分布，结果表明：准直镜头内部多次反射产生的杂光强度很低，可以忽略。而当被测镜头中存在相邻球心像距的镜面时，产生的杂光强度比较大，在后续的图像处理过程中，必须增强目标图像的对比度。利用研制的镜面偏心测量设备进行测量实验，结果进一步验证了杂光分析的正确性。
위료해결현유경면편심측량설비존재적문제，본문연구료일충채용절환경두화조초상결합적방법래설계적경면편심측량광학계통，사용저개광학계통，기능사피측경면적곡솔반경확전도－∞～＋∞범위，우능보증측량정도。통과Lighttools연건대저개광학계통진행광선추적，분석기잡광분포，결과표명：준직경두내부다차반사산생적잡광강도흔저，가이홀략。이당피측경두중존재상린구심상거적경면시，산생적잡광강도비교대，재후속적도상처리과정중，필수증강목표도상적대비도。이용연제적경면편심측량설비진행측량실험，결과진일보험증료잡광분석적정학성。
To improve current equipments in the market , a lens-eccentricity-measuring optical system that combines the focusing method and lens-switching method is designed in this paper .This optical system can be used to measure lens with curvature radius from -∞to +∞, as well as maintain the test accuracy .Light-tools software is used to trace the light ray and analyze stray light distribution of this optical system .Results show that the intensity of the stray light after multiple reflection inside the collimated lens is low and negli -gible.The stray light intensity becomes stronger when the image distances of sphere centers are nearby in the testing lens.So in the later image processing , the contrast of target images must be strengthened .Measure-ment experiments are done by using the equipment with this optical system .All the experimental results further verify the correctness of stray light analyzing .