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http://dx.doi.org/10.3807/KJOP.2006.17.5.420

Correction method for the Variation of the Image Plane Generated by Various Symmetric Error Factors of Zoom Lenses of Digital Still Cameras and Estimation of Defect Rate Due to the Correction  

Ryu, Jae-Myung (Optics & Digital Imaging Division, Samsung Techwin Co., LTD)
Kang, Geon-Mo (Optics & Digital Imaging Division, Samsung Techwin Co., LTD)
Lee, Hae-Jin (Optics & Digital Imaging Division, Samsung Techwin Co., LTD)
Lee, Hyuck-Ki (Optics & Digital Imaging Division, Samsung Techwin Co., LTD)
Jo, Jae-Heung (Dept. of Applied Optics and Electromagnetics, Hannam University)
Publication Information
Korean Journal of Optics and Photonics / v.17, no.5, 2006 , pp. 420-429 More about this Journal
Abstract
In the zoom lens of digital still cameras with the variation of the image plane generated by various symmetric error factors such as curvature, thickness and refractive index error of each lens surface about the optic axis, we induce a theoretical condition to fix constantly the image plane by translating the compensator group of the zoom lens by using the Gaussian bracket. We confirm the validity of this condition by using three examples of general zoom lens types with 3, 4, and 5 groups, respectively. When these error factors are randomly changed within the range of tolerance according to the Monte Carlo method, we verify that the distributions of the degree of moving of the compensator are normal distributions at three zoom lens types. From capability analysis using these results, we theoretically propose the method estimating the standard deviation, that is, sigma-level, as a function of the maximum movement of the compensator.
Keywords
기하광학;줌렌즈;가우스 괄호;보상자;공차 이론;
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