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3" x 3" Positive, USAF 1951 Target

UV Fused Silica and Fluorescent USAF 1951 Resolution Targets

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Stock #57-898 In Stock
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£369.75
Qty 1-4
£369.75
Qty 5+
£351.90
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Coating:
Vacuum Deposited Durable Chromium
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Fused Silica (Corning 7980)
Optical Density OD (Average):
>3.0
Resolution:
Mimimum: Group -2, Element 1, Maximum: Group 7, Element 6
Dimensions (inches):
3 x 3
Surface Quality:
20-10
Thickness (mm):
1.00
Type:
Positive Target
Surface Flatness (P-V):

Regulatory Compliance

RoHS 2015:
Certificate of Conformance:
Reach 240:

Product Family Description

  • Designed for Calibration of UV or Fluorescence Microscopes
  • Fluorescent Targets have 365nm Excitation Wavelength, 550nm Emission Wavelength
  • Negative and Positive Targets Available

The Fused Silica Positive Target (chrome pattern, clear background) has the chrome pattern deposited on the top surface of the target, as does the Fused Silica Negative Target (clear pattern, chrome background).

The Fluorescent Fused Silica Targets are ideal for applications involving fluorescence and confocal microscopy, nanotechnology, photolithography, and other UV-based imaging systems. The Fluorescent Fused Silica Positive Target (chrome pattern, clear background) has a fluorescent material on the top surface of the target. The Fluorescent Fused Silica Negative Target (clear pattern, chrome background) has a fluorescent material on the bottom surface.

Note: Chrome coated top surface will reflect UV radiation. Avoid direct skin contact and eye exposure to UV energy. UV protective eyewear sold separately. Fluorescent material adds 0.1 - 0.2mm to thickness of fluorescent targets.

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