Lens Set, one each plano-convex and planoconcave cylindrical lens of focal length 150 and 300 mm respectively; Colour filter, set of 3 primary & 3 secondary.

All accessories are with 6 mm mounting rods, where required, to fit in optical bench slides. The length of the rods and size of components are designed to provide approximately the same optical centre height.Rod with pointed end, overall length 80 mm approx.

All accessories are with 6 mm mounting rods, where required, to fit in optical bench slides. The length of the rods and size of components are designed to provide approximately the same optical centre height. For supporting diffraction objects or any other item in 50 mm square mount. Rectangular metal frame with spring clips and a mounting rod.

All accessories are with 6 mm mounting rods, where required, to fit in optical bench slides. The length of the rods and size of omponents are designed toprovide approximately the same optical centre height. 75 mm diam. circular black metal screen having 10 mm aperture with cross-wires.

All accessories are with 6 mm mounting rods, where required, to fit in optical bench slides. The length of the rods and size of components are designed to provide approximately the same optical centre height.A 75 mm metal screen with 10 mm central aperture covered with wire gauze.

A 75 mm diam. circular metal disc with 12.5 mm central aperture. A screw controlled spring loaded precision slit is mounted on one side of the disc.Max opening 4 mm wide and 10-12 mm long.

Rectangular, clear, all sides polished

90 mm diam. X 16 mm thick
75 mm diam X 20 mm thick

Free from air bubbles, all sides polished

90 mm diam.,16 mm thickness

20 mm diam. x 22 mm deep cylindrical metal holder mounted on rod of 6 mm diam.

In cardboard frames, 50 x 50 mm, set of 6 primary and secondary colours.

Comprising a black metal frame 150x100 mm with an aperture, and a removable white card screen. The card has an aperture with an index point for use as an object, or the card may be inverted and used as a receiving screen. Mounted on a base 100x50 mm.

A 12V 100W lamp in ventilated housing. Apertures are provided to enable lamp to be used as a horizontal ‘line’ source or a powerful pointer source. Mounted on a rod for being supported on a laboratory stand.

Optically worked, back silvered, with protective coating.