Light box and optical set

Specifications

A complete kit providing comprehensive range of optical experiments involving reflection, refraction and colour mixing.
The kit designed around a light box, all black, well ventilated, consisting of a light source 12V, 24W vertically straight filament lamp fitted in the holder through top of the box.
The light box incorporates a collimating lens towards one end for producing convergent, divergent, or parallel light beams, with other end having triple aperture system for colour mixing experiments; adjustable hinged mirrors along both sides of the box facilitates colour mixing of all three beams.
All apertures in the box are provided with vertical channels to hold slits plates and colour filters.
A two core flexible connecting lead terminating in a pair of 4 mm banana plugs connect it to low voltage AC power source.
The complete optical set includes:
1| Set of 5 acrylic prisms: one each of rectangular, semi-circular, equilateral triangular 60°x60°x60°, triangular 90°x60°x30° and right angled triangular 90°x45°x45°.
All prisms are free of optical imperfections and sharp edges.
2| Set of 3 acrylic lenses: one double concave, one double convex (both having same radius of curvature) and one thick double convex.
3| Set of 3 mirrors: highly polished reflecting surfaces and free standing. One each of parabolic, semi-circular and plane shaped glass.
4| Set of 2 slit plates, black: one with 1 and 3 narrow slits and the other with 4 narrow slits and 1 wide slit.
5| Set of 8 colour filters: 3 primary colours (red, blue and green) and 5 secondary colours (cyan, violet, orange, yellow and magenta)
6| Set of 8 colour plates: red, blue, green, violet, orange, cyan, yellow and pink.
All acrylic prisms, lenses and mirrors are provided with finger grips, enabling their handling without touching their active optical surfaces.
The bottoms of all refractive components are frosted to minimize internal reflections and revealing the path of light as it passes through.
The set is supplied complete with a spare bulb and in a moulded Styrofoam case for long life storage.