Fast computerized optical lens measurement by linear CCD

Tzuu-Horng Lin; K. C. Wu; Lian-Fu Liu

doi:10.1117/12.131339

28 October 1992 Fast computerized optical lens measurement by linear CCD

Tzuu-Horng Lin, K. C. Wu, Lian-Fu Liu

Proceedings Volume 1816, Electro-Optic Computer Peripherals Technology; (1992) https://doi.org/10.1117/12.131339
Event: International Symposium on Optoelectronics in Computers, Communications, and Control, 1992, Hsinchu, Taiwan

Abstract

The optical lens quality is traditionally justified by resolution. But the modulation transfer function (MTF) is a better way to measure the optical lens quality than resolution. Before the introduction of linear CCD, it was very difficult to measure the MTF because it was both time consuming and costly. A low cost, high speed MTF measurement by linear CCD has been successfully developed here. Besides the MTF measurement, the important lens characteristics like distortion, optical axis misalignment, relative F number, magnification, and back focus length also can be measured by this system with a very high speed and low cost fully computerized system using a personal computer (PC). This system has been applied in industry and has been proven to be a useful instrument for optical lens characteristics measurement.

Citation Download Citation

Tzuu-Horng Lin, K. C. Wu, and Lian-Fu Liu "Fast computerized optical lens measurement by linear CCD", Proc. SPIE 1816, Electro-Optic Computer Peripherals Technology, (28 October 1992); https://doi.org/10.1117/12.131339

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