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Bjerrum Tanget Screen

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SKU: 93368 Category:


The Bjerrum Tangent Screen is a flat, usually black surface, used to measure the central 30 degrees of the visual field. The Bjerrum screen is made of black matte material and stitched with radial lines at 15 degree intervals and circles at 5 degree intervals. For use at 1 meter with Traquair or similar stimuli.