1 June 1974 MTF Testing And Specifications For Afocal Systems
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Parameters of MTE tests on military vehicle sights have been investigated and suitable procedures for testing with a Sira-Beck 'Erost equipment evolved. A simplified MTF testing technique operating at a single spatial frequency over all azimuths reduces the amount of test data to a convenient level for subsequent assessment purposes. The equipment to carry out this test can measure dioptre settings of fixed focus eyepieces, field curvature and astigmatism. Specifications are discussed in relation to both establishing comprehensive statements to cover a design and reduced specifications for quality control purposes.
© (1974) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
N P Barton, N P Barton, } "MTF Testing And Specifications For Afocal Systems", Proc. SPIE 0046, Image Assessment and Specification, (1 June 1974); doi: 10.1117/12.953997; https://doi.org/10.1117/12.953997

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