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2" x 2" Negative, USAF 1951 Hi-Resolution Target

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Stock #55-622
€670.00
Qty 1-4
€670.00
Qty 5+
€603.00
Volume Pricing
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Optical Density OD (Average):
≥3.0
Resolution:
Minimum: Group 0, Element 1
Maximum: Group 9, Element 3
Dimensions (inches):
2 x 2 ±0.04
Surface Quality:
20-10
Thickness (mm):
1.50
Type:
Negative Target
Edges:
Beveled
Flatness (mm):
≤0.00254
Note:
Pattern Location is Centered
Coating:
Vacuum-Deposited Durable Chromium
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Float Glass
NIST Certification:
No

Regulatory Compliance

RoHS:

Product Family Description

  • 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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