ISSN:
1013-9826
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Operation of two-dimensional Power Spectral Density (2-D PSD) of large opticswavefront is briefly described and PSD collapse is introduced to evaluate the intermediatefrequency error property of wavefront. As PSD collapse is Radon transform projection of 2-DPower Spectral Density at any angle, all valid data of wavefront of optics are used in calculation ofthe PSD collapse and the features of 1-D PSD were inherited in PSD collapse. Although PSDcollapse is as same as 1-D PSD in unit and behavior style, it is better for evaluating intermediatefrequency error property of optics wavefront than 1-D PSD or 2-D PSD. As PSD collapsecalculation uses all valid data of evaluated optics wave front and can be directly perceived throughits profile, the PSD collapse may possibly be the standard evaluating method of PSD
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/56/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.364-366.108.pdf
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