Supplied in a velvet lined case.
For seeing the reflection and bending of light as it passes through lenses and prisms. Phenomenon of refraction and internal reflection is also easily visualised. 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 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
Equilateral prism 25mm face and 50mm long
We can also supply lenses with one side frosted.