Chinese Journal of Lasers, Volume. 26, Issue 4, 317(1999)
Measurement of Lens Focal Distance: Using a Spectrum Interferometer Based on Fractional Fourier Transform
Take fractional Fourier transform of two identical objects. The focal distance of the lens would be acquired by measuring the spacing of fringes formed by spectrum interference. The experimental setup of this method is very simple. And it has the advantages of being easy to operate and easy to control automatically, and of higher accuracy. It has a practical virtue in optical measurement.
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[in Chinese], [in Chinese]. Measurement of Lens Focal Distance: Using a Spectrum Interferometer Based on Fractional Fourier Transform[J]. Chinese Journal of Lasers, 1999, 26(4): 317
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