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Lenses > LENS DEMONSTRATION, SET/7, ACRYLICFor seeing the reflection and bending of light as it passes through lenses and prisms. Phenomenon of refraction and internal reflection is also easily visualized. The base surfaces are painted white for easy visibility of a ray of light. Thickness of the blocks is 10mm except for the last two items noted below. Set of seven supplied in a velvet lined case. Set includes the following: Bi-convex lens 90mm long, Bi-concave lens 90mm long, Semicircular lens 93mm diameter, Trapezoidal block 85 and 30mm opposite faces, Right angle prism 100mm hypotenuse, Right angle prism 32mm hypotenuse and 50mm long and Equilateral prism 25mm face and 50mm long. |