Ray Box with Optical Lens Set -1x Light Box with adjustable collimating lens for the production of parallel beams and rays together with two swinging mirrors for colour blending. - 1x Spare globe 12V.30W Quartz Halogen. - 1x Set of 3 double ended slit formers to form rays through single, double, triple and 4 slits. Plus a wide slit for creating spectra and a blank to shut off the light. - 1x Set of 8x colour filters: Red, Green, Blue, Yellow, Orange, Cyan, Magenta & Violet. - 1x Set of colour plates: same colours as above, but non transparent. - 1x Plain mirror on stand - 2x Curved mirrors, parabolic and half round. - 1x Rectangular acrylic block 75x50mm LxW - 1x Half round acrylic block 75mm diam. - 1x Right angle 45, 45, 90 acrylic prism • 1x Equilateral 60, 60, 60 acrylic prism • 1x Right angle 60 x30 x90 acrylic prism • 1x Bi-concave acrylic lens 7.5cm f/l • 2x Bi-convex acrylic lenses. 7.5cm & 3.75cm f/l • 1x Experiment book for optics. *some content will be change without notice