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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Objects
Bishop Harman's Scotometer OPTOMETRIC INSTRUMENTS visual field test c.1910 metal
Colour test consisting of revolving black metal disk with a window through which is visible a series of varying-sized red and green squares. Metal loop handle.