Waves

Large glass rectangular prism, excellent for use with ray boxes and lasers in Optics experiments.  For educational use. Dimensions: 125mm x 65mm x 18mm Small

Rectangular block made from high quality glass with optically worked surfaces. All angles are accurately worked. Dimensions: 114mm x 65mm x 19mm

Wire Helix (Slinky) - 55mmIdeal for demonstrating different types of waves. Flat-section steel wire in helical coil.Dimensions: Diameter: 75mm Height: 55mm

Plano-Convex Lenses made from clear glass with ground edges & optically worked faces, for educational purposes. Diameter: 50mm Focal Length: 140mm Power: +7D Refractive

Spare 45mm glass double convex cylindrical lens for use with the, now discontinued, Economy Ray Box. Dimensions: (W)45mm x (H)50mm

Spare Ray Box slit plates, suitable for the Philip Harris Ray Optics Box (B8R06342) & the Battery Operated Ray Box (B8R06343). Dimensions: 50mm x 100mm Pack of 5

The ancestor of all cameras, this hand-held Pinhole Camera obscura projects an image onto a screen inside the box. The wooden camera is supplied in kit form and has an authentic

Pack of 5 A4 sized sheets of coloured acetate. The sheets are easily cut to make filters for colour experiments. Ideal for exploring colour-mixing and using with other colour

Clear glass equilateral triangular prism made from clear optical glass with optically polished faces.  For educational use. Angles: 60° x 60°

Spherical Lenses: Double ConvexWith optically worked faces and ground edges, for educational purposes. Diameter: 50mm Focal Length: 200mm Power: +5D Refractive

Replacement LED bulb for the Battery-Operated Ray Optics Box (B8R06343).

Wire Helix (Slinky) - 110mmIdeal for demonstrating different types of waves. Flat-section steel wire in helical coil,Dimensions: Diameter: 75mm Height: 110mm

Rectangular clear Perspex block.  Useful for Ray Optics experiments.  All faces are fully polished. Dimensions: 115mm x 65mm x 20mm

Clear acrylic bioconcave and bioconvex blocks. Thickness: 25mm. Bioconvex Size: 115mm x 75mm. Pack of 2 (one of each)

Spherical Lenses: Double ConvexWith optically worked faces and ground edges, for educational purposes. Diameter: 38mm Focal Length: 50mm, Power: +20D Refractive

Spherical Lenses: Double ConvexWith optically worked faces and ground edges, for educational purposes. Diameter: 50mm Focal Length: 50mm Power: +20D Refractive

Spherical Lenses: Double ConvexWith optically worked faces and ground edges, for educational purposes. Diameter: 50mm Focal Length: 100mm Power: +10D Refractive

Spherical Lenses: Double ConvexWith optically worked faces and ground edges, for educational purposes. Diameter: 50mm Focal Length: 150mm Power: +6.6D Refractive

Spherical Lenses: Double ConcaveWith optically worked faces and ground edges, for educational purposes. Diameter: 50mm Focal length: 50mm Power: -20D Refractive

Spherical Lenses: Double ConcaveWith optically worked faces and ground edges, for educational purposes. Diameter: 50mm Focal Length: 100mm Power: -10D Refractive

Spherical Lenses: Double ConcaveWith optically worked faces and ground edges, for educational purposes. Diameter: 50mm Focal Length: 200mm Power: -5D Refractive

Plastic, adjustable lens holder to accommodate a range of lens sizes.

This hard acrylic 13mm (1/2") diameter light pipe is 610mm (2ft) of pipe coiled up at one end to demonstrate light transmission from end to end. It transmits light like fibre

Wire Helix (Slinky) - 165mmIdeal for demonstrating different types of waves. Flat-section steel wire in helical coil.Dimensions: Diameter: 75mm Height: 165mm