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0.5" x 0.5" (72 lp/mm), Ronchi Ruling

Stock #66-339
$145.00
Qty 1-5
$145.00
Qty 6-10
$130.50
Qty 11+
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Coating:
Vacuum Deposited Chrome, OD >3.0
Dimensional Tolerance (inches):
±0.02
Frequency (lp/mm):
72
Substrate:
Float Glass
Optical Density OD:
3.00
Dimensions (inches):
0.5 x 0.5
Surface Quality:
60-40
Thickness (mm):
1.50
Type:
Metric
Line to Line Parallelism (arcsec):
≤2
Parallelism of Pattern to Substrate (°):
±1
Surface Flatness:
RoHS:

Product Family Description

  • Chrome on Glass
  • High Tolerance
  • Superior to Etched and Filled Rulings
  • Lines Parallel to Edge
  • English and Metric Versions

High Precision Ronchi Ruling Glass targets are excellent for evaluating resolution, field distortion, and parfocal stability. Many different Linepairs Per Inch (LPI) and Linepairs Per Millimeter (lp/mm) versions available. 1", 2", 4" and 6" squares available.

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