Plane, circular, ground edges. Back silvered with protective coating
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Whte finish metal box, mounted on a steel rod with 12V 100W halogen lamp
Ground & polished faces, edges ground. Size 50 mm high & 45 mm wide.
Kit includes 5 liters round bottom flask with cork, support ring, fluorescein and 3 lens to demonstrate long, short and normal sight.
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
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