Achromatic Lenses (2)


After the United States declared war on Germany on April 6, 1917, American leaders realized that the best optical instruments came from German shops. Thus, to obtain the spy glasses, binoculars, range finders, and other optical instruments needed by its fighting forces, they commandeered the resources of private optical and instrument shops. And they authorized the establishment of a new optical shop at the Washington Navy Yard. That facility, later termed the Naval Weapons Plant Optical Shop, gave these two achromatic lenses to the Smithsonian in 1961.

Location: Currently not on view

See more items in: Medicine and Science: Physical Sciences


Exhibition Location:

Data Source: National Museum of American History

Id Number: PH.319377Catalog Number: 319377Accession Number: 237036

Object Name: achromat lenses

Measurements: overall; convex: 7/8 in x 5 1/4 in; 2.2225 cm x 13.335 cmoverall; concave: 13/16 in x 5 1/4 in; 2.06375 cm x 13.335 cm


Record Id: nmah_1840171

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