Transparent and highly polished for clarity. Face 5cm.

To demonstrate refraction and provide a better understanding of Snell’s Law. Comprises of acrylic cube and a glass mug. Includes instructions.

A comprehensive set of equipment for performing ray optics and color mixing experiments using magnetic-backed components. The components can be used with a whiteboard (included) or any installed steel / magnetic board. The set includes one lightbox with a power adapter, three slits, one transparent color filter (set of 7), one opaque color filter (set of 7), one rectangular acrylic block, one semicircular acrylic block, one right angle block 90° x 45° x 45°, one right angle block 90° x 60° x 30°, one equilateral prism, four plastic coated ring magnets, one double convex block, one mirror strip, one double concave lens, one rectangular acrylic bar, one acrylic liquid container, two magic alphabet card, and one mirror holder. The size of the whiteboard supplied is approx. 580 x 390 mm.

To provide a simple means of producing single or multiple rays of light for use in elementary optics. Made of die-cast alloy, the ray box has an open front and vertical internal grooves to accommodate a slit plate and a cylindrical lens. Supplied complete with a plastic plate having single and triple slits, a 12V-24W SBC line filament lamp and a lamp holder.

A Robust lightbox in matt black finish with a 12 V 24 W axial filament lamp with flexible leads. One end of the box takes a cylindrical convex lens in an adjustable sliding mount to enable production of convergent, parallel or divergent beams. Complete with accessories which consist of: 5 Plastic blocks, One Rectangular, One semicircular, One equilateral prism 60° x 60° x 60°, One right angle prism 90° x 60° x 30° and One right angle prism 90° x 45° x 45°. 3 Cylindrical acrylic lenses- one double convex, one double concave, both having the same radius of curvature and one thick convex lens. 3 mirrors, one plane glass, one curved parabolic and one curved semi-circular. 2 Slit plates, one with three narrow and one narrow slits, the other with four narrow and one wide slits. 1 Set of eight color filters- Red, Green, Blue, Cyan, Violet, Yellow, Orange and Magenta. 1 Set of colored cards- Red, Green, Blue, Violet, Orange, Cyan, Yellow and Pink. Complete with one spare lamp, in box.

Comprises a white-painted wooden board mounted on nonskid plastic feet, and a removable turntable about 170 mm in diameter. Two orthogonal lines along the turntable’s diameter divide it into four equal quadrants. Just beyond the rim of the turntable, a circular scale graduated 90 – 0 – 90 – 0 – 90 °, with 1° subdivision. Also includes a ray box with a 12V 24W bulb. Supplied complete with a cylindrical convex lens with focal length approx. 75 mm and a plastic plate having single and triple slits. An optical set is available separately, comprising of one each of rectangular, semi-circular, right-angled triangular – 90 ° 45 ° 45° trapezoidal, biconvex and biconcave prisms.