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J.R. Cumberland Inc.
Map4505 Beech Rd.
Marlow Heights, MD 20748-6705
United States
Phone: (301) 423-8857
Fax: (301) 894-6806
Toll-free: (888) 818-8857
Full Spectrum in Precision Optics: Lenses, Test Plates, Prisms, Mirrors, Optical Systems, Beamsplitters, Aspheric Optics, and more.

Capabilities Include:

HEAVY-DUTY Generators with specially designed diamond wheels accomplish the preliminary shaping in a minimal amount of time.

They are used to: 
  • Drill
  • Generate Curves
  • Grind Flats
  • Edge diameters
  • Bevel and chamfer safety corners

HIGH TOLERANCE Testing, which goes beyond the capabilities of an electronic spherometer, is accomplished by using test plates, Rhonchi testing, and auto-collimating. Our ZYGO Interferometer provides the highest level of accuracy testing, with computerized data read-outs.

MASTER TEST PLATES are made for every curve to insure that elements in production are precisely the same as the original. Test plates are also available, flat or curved to your specifications. A WIDE VARIETY OF COATINGS, both reflective and anti-reflective are available, using our in-house high vacuum-coating facilities.

Optical elements can be coated with any of these materials: Magnesium Fluoride, Chromium, Aluminum, Gold, Silicon Monoxide.

Complete multi-layer coatings are also available upon request.

J.R. CUMBERLAND converts optical problems into cost-effective solutions. Let Cumberland Quality go to work for you.

Established: 1949
Employees: 10
Facility area (sq. ft): 10,000
Ownership type: Privately Owned
Robert C. Kautz, Pres.
William Greening, VP

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