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Dot and Square Calibration Targets

Dot and Square Calibration Targets

Dot and Square Calibration Targets Negative 1 Positive 1
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  • Designed for Measurement Calibration
  • Positive or Negative Chrome Patterns on Glass
  • High Contrast Target for Imaging with Elements from 0.5 to 10mm
  • NIST Traceability Certificate Included

These targets provide a highly accurate reference for feature sizes of circles and squares and are ideal for testing the accuracy of non-contact metrology systems, especially those vulnerable to distortion and blooming. The precision pattern is formed in Low Reflection Chromium on a stable Float Glass substrate in standard microscope slide format. The low reflection pattern surface provides high contrast against a light background, ideal for diffuse or coaxial illumination applications. The pattern is applied to the first surface and features both circles and squares in 0.5mm and whole-number-sized increments from 1mm to 10mm. The Positive Target features an opaque pattern on a clear background, whereas the Negative Target features a clear pattern on an opaque background.

Common Specifications

NIST Certification:
Included
Dimensional Tolerance (inches):
±0.02
Dimensions (inches):
1 x 3
Thickness (inches):
0.060
Thickness Tolerance (inches):
±0.001
Parallelism (inches):
0.005
Substrate:
Float Glass
Surface Quality:
20-10
Surface Flatness (P-V):
<4λ

Products

 Title   Compare   Stock Number   Price  Buy
Positive 1" x 3", Dot and Square Calibration Target
Negative 1" x 3", Dot and Square Calibration Target
 
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