Optical Comparator Charts

Radius & Angle - Glass and Mylar Charts

 

General Purpose Charts Combination Radius Charts Five Way Radius Charts Grid Charts  
Single Quadrant Radius Charts Step Radius Charts Grid & Radius Charts

360deg. Radius & Angle Charts

 
         

Vermont Precision Machine Services Inc. & J&L Metrology

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When ordering optical comparator charts please have the following information.

  • Style of chart.

  • Glass or Mylar.

  • Comparator model & lens magnification.

  • With or with out Screen protractor.

  • Available in sizes from 10" thru 50"

 

Inches (4-way)

Style 20:

  • 10x magnification / .010 incr.
  • 20x magnification / .005 incr.
  • 50x magnification / .002 incr.
  • 100x magnification / .001 incr.

Style 21:

  • 31.25x magnification / .002 incr.
  • 62.50x magnification / .001 incr.

Millimeters (4-way)

Style M20

  • 10x magnification / 0.20 incr.
  • 20x magnification / 0.10 incr.
  • 50x magnification / 0.04 incr.
  • 100x magnification. / 0.02 incr.

Optical Comparator Chart - Radius & Angle Chart
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Last modified: 07/27/06