The correlation setting of the optical pickup head's laser beam measuring equipment

Liao Bangquan; Zhang Yimo; Zhao Qida

doi:10.1117/12.668425

20 January 2006 The correlation setting of the optical pickup head's laser beam measuring equipment

Liao Bangquan, Zhang Yimo, Zhao Qida

Proceedings Volume 6027, ICO20: Optical Information Processing; 60274Q (2006) https://doi.org/10.1117/12.668425
Event: ICO20:Optical Devices and Instruments, 2005, Changchun, China

Abstract

For industrial producing, the same type of manufacturing equipment may lead to some product with different quality. In order to compare the measuring results of different machine easily and correctly we develop one kind of correlation setting method. We use a standard evaluator to evaluate 18 pieces of optical pickup head and record the data. Then we use one measuring equipment to measure the above 18 pieces of optical pickup head and record the data. Through comparing the skew R and skew T data of the above two group data, we can know the primary correlation coefficient of the skew R and skew T. If the coefficient is small or the offset is big we should set the correlation. Through modifying the correlation coefficient related terms and offset related terms, measuring and comparing again and again, we can control the correlation coefficient and offset in the range we wanted. Through correlation setting, we can compare the result of different measuring machine and we can determine the different error we can accept for different producing processes. It suggests that such kind of correlation setting is useful and necessary for industrial production.

Citation Download Citation

Liao Bangquan, Zhang Yimo, and Zhao Qida "The correlation setting of the optical pickup head's laser beam measuring equipment", Proc. SPIE 6027, ICO20: Optical Information Processing, 60274Q (20 January 2006); https://doi.org/10.1117/12.668425

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