Matches in DBpedia 2015-10 for { ?s ?p "The 1951 USAF resolution test chart is a resolution test pattern conforming to MIL-STD-150A standard, set by US Air Force in 1951. It is still widely accepted to test the resolution of optical imaging systems such as microscopes, cameras and image scanners, although MIL-STD-150A was cancelled on October 16, 2006. The pattern consists of groups of three bars (small Ronchi rulings) with dimensions from big to small."@en }
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- 1951_USAF_resolution_test_chart comment "The 1951 USAF resolution test chart is a resolution test pattern conforming to MIL-STD-150A standard, set by US Air Force in 1951. It is still widely accepted to test the resolution of optical imaging systems such as microscopes, cameras and image scanners, although MIL-STD-150A was cancelled on October 16, 2006. The pattern consists of groups of three bars (small Ronchi rulings) with dimensions from big to small.".