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Products / Test Targets / Resolution Test Targets
Family ID The Family ID is used to identify product family presentations and can be used to quickly access presentations utilizing the search. #1790

USAF 1951 Glass Slide Resolution Targets

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  • Negative and Positive Patterns On Glass
  • Two Sizes Available
  • Each is Boxed and Includes Resolution Value Chart
  • High Resolution Target Available (down to 645 lp/mm)

Resolution test slides with the USAF 1951 test pattern are available in either positive (chrome pattern on clear background) or negative (clear pattern on a chrome background). The positive pattern is recommended for quality control of microscopes and magnifiers. The negative pattern is ideal for collimators and other illuminated test equipment. Each is boxed and includes resolution value chart. Targets conform to MIL-S-150A.

Technical Information

Number of Line Pairs / mm in USAF Resolving Power Test Target 1951
Element
Group Number
 For High Res only
-2 -1 0 1 2 3 4 5 6 7 8 9
1 0.250 0.500 1.00 2.00 4.00 8.00 16.00 32.0 64.0 128.0 256.0 512.0
2 0.280 0.561 1.12 2.24 4.49 8.98 17.95 36.0 71.8 144.0 287.0 575.0
3 0.315 0.630 1.26 2.52 5.04 10.10 20.16 40.3 80.6 161.0 323.0 645.0
4 0.353 0.707 1.41 2.83 5.66 11.30 22.62 45.3 90.5 181.0 362.0 —
5 0.397 0.793 1.59 3.17 6.35 12.70 25.39 50.8 102.0 203.0 406.0 —
6 0.445 0.891 1.78 3.56 7.13 14.30 28.50 57.0 114.0 228.0 456.0 —
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