Lens Cylindrical Plano-Concave

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

Comprising a lamphouse & transformer. The lamp gives a steady light for high intensity. Special design of transformer ensures that the lamp starts immediately as it is switched on. When mounted on the integral stand, the lamp is enclosed by a cylindrical lamp house with a circular aperture & the light centre height is adjustable from 200 mm onwards.

The lamp house is open at the top to allow for ventilation & may be removed for operation on a separate stand, as required. The transformer is housed in a two part sheet steel case with ventilation louvres & has a lamp house supplying rod mounted directly onto the transformer case provide a convenient self contained assembly. A 3 core captive flying lead is provided for mains connection.