MusEYEum Online Catalogue

Welcome to the online catalogue of the British Optical Association Museum. Here you can search for both museum artifacts and archives. Data is transferred from our Collections Management System to this website on a regular basis.

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illuminated test chart
TEST CHARTS
test chart
Europe: United Kingdom
Mid 20th c.
wood; glass
overall: 720 x 560 x 270 mm

Illuminated test chart. Black wooden casing with removable front providing access to light wells. 4 light bulbs. Fan chart and revolving diamond test for astigmatism (controlled by wheel to lower left of casing). Revolving octagonal barrel bearing seven test types 6-6 to 6-45 controlled by wheel on left side of casing. Three line test chart with reversed lettering types 6-24 to 6-60. 3 switches on left side. Wall brackets to top at back of casing. Electrical flex cut short.


2001.149

Gift of John D.M. Skirrow, 2001



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