Semicircular mirror made of stainless steel.
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Made from moulded glass, polished surfaces (a) 75 x 50 x 18 mm (b) 100 x 60 x 25 mm.
A unique apparatus that allows you to recreate the conditions of visual deficiencies in the human eye..
Consists of clear silicone elastic lens chamber, filled with water When water is added or removed with the included syringe, the curvature of the lens is changed, which alters the focus of images projected on the retina Adjustable eyeball shape Lenses can be added to show how vision defects can be corrected Five-piece model mounted on a base with the projection object on a separate stand Supplied complete with two lenses, lens holder and instruction manual
Made of optically flat plates cemented together. Dimensions 50 x 50 x 50 mm
Polished 90 mm dia & 20 mm thick approx.
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