Welcome to Optical Comparators blog.

Since 1986 Dorsey Metrology have been manufacturing high quality optical comparators.

You can contact us about optical comparators sales, service and general informaion by calling directly to +1-845-454-3111.

Archive for April, 2010

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Optical Comparator Grid Chart Styles

Friday, April 23rd, 2010 | chart | admin

Tables below show available styles for grid  charts for optical comparators made by Dorsey Metrology.

Grid charts styles
Style Magnification Increments
Inches
Style 60 10X .005
Style 61 10X .01
Style 62 20X .0025
Style 63 20X .005
Style 64 31.25X .001
Style 65 31.25X .002
Style 66 31.25X .005
Style 67 62.50X .001
Style 68 50X .001
Style 69 50X .002
Style 70 100X .0005
Style 71 100X .001
Grid charts styles
Style Magnification Increments
Millimeters
Style M60 10X .2
Style M62 20X .1
Style M68 50X .04
Style M70 50X .02
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Optical comparator grid and radius chart styles

Thursday, April 15th, 2010 | chart | admin

Dorsey Metrology offers many styles for its optical comparator charts. Tables below show available styles for grid and radius charts.

Grid and Radius charts styles
Style Magnification Increments
Inches
Style 40 10X .005
Style 41 20X .0025
Style 42 31.25X .002
Style 43 50X .001
Style 44 62.50X .001
Style 45 100X .0005
Style 46 20X .002
Style 47 25X .002
Grid and Radius charts styles
Style Magnification Increments
Millimeters
Style M40 10X .2
Style M41 20X .1
Style M42 31.25X .05
Style M43 50X .04
Style M44 62.50X .025
Style M45 100X .02
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Optical comparator grid and radius chart

Thursday, April 15th, 2010 | chart | admin

Illustration shows Dorsey’s grid and radius chart. Please contact our sales department at +1-845-454-3111 for ordering information.

grid radius chart1 Optical comparator grid and radius chart
When ordering optical comparator chart, please specify the following:

  • style of chart (more available – images coming soon)
  • type and model of optical comparator
  • lens magnification
  • chart material – glass or plastic
  • additional information required for particular chart or scale
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