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PRISMS, GLASS, EQUILATERAL (0512)
Non-optically worked, with polished faces, edges slightly beveled. Nominal angles 60? x 60? x 60?.
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PRISMS, ACRYLIC, EQUILATERAL (0513)
60? x 60? x 60?. Clear acrylic polished surfaces.
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PRISMS, ACRYLIC, RIGHT ANGLED (0514)
90? x 45? x 45?. all faces fully polished.
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GLASS BLOCK, RECTANGULAR, ECONOMICAL (0515)
Made from moulded glass with polished surfaces. All angles accurately worked. For refraction experiments.
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GLASS BLOCK, RECTANGULAR, DELUXE (0516)
Made from high optical quality white glass with polished surfaces free from any defect. All angles accurately worked with edges slightly beveled and glass totally free from bubbles.
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ACRYLIC BLOCK, RECTANGULAR (0517)
Made from clear acrylic, all faces fully polished and free from any defect.
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SEMICIRCULAR BLOCKS (0518)
Clear, all faces polished.
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OPTICAL ACCESSORY BLOCKS, ACRYLIC (0519)
Clear acrylic plastic blocks about 20mm thick with all surfaces polished. All components available as separate parts as well as collection of all components in set form. Available in various blocks of different shapes and sizes.
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HOLLOW OPTICAL SHAPES, GLASS (0520)
For studying the optical properties of liquids and determination of their refractive index by filling them in the hollow optical shapes. Made from ordinary plate glass, properly cemented with optical cement. All shapes have opening at the top for pouring in liquid.
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PINS FOR OPTICS EXPERIMENTS (0521)
Plated metal, heavy gauge. Useful as an object in optical bench for studying images and in ray tracing for marking the path of rays. Supplied in packs of 100g each.
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NEWTON'S RINGS APPARATUS (0522)
A simple and economical apparatus for the study of Newton's Rings. Comprises a pair of glass plate, optically polished, about BOmm diameter, one plane the other slightly plano-convex mounted together in ring shaped frame. Pressure between the two glass plates adjustable by three spring-loaded screws.
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MICROSCOPE, COMPACT, NEWTON RINGS (0523)
Specially designed microscope for use in Newton's rings experiment. It is very compact in size and economically priced. It houses an inbuilt lightreflecting unit for the experiment and the lightweight cast aluminum body has provision for positioning the Newton's rings setup. The vertical motion of the microscope through a focusing knob. Horizontal motion along a cast metal carriage with a micrometer at one end for fine adjustment and reading the horizontal position of the microscope with a LC of 0.01 mm. The microscope has working distance and comes with 8x eye piece, Ramsden type with cross line graticule.
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PHOTOMETER, BUNSEN'S GREASE SPOT (0524)
For comparison of the intensity of two different light sources by comparison. Comprises a grease spot of about 45mm diameter with central un-greased spot of 5mm diameter, mounted vertically between two screens each with a square mirror about 90mm in size. Both the mirrors mounted at an angle with respect to each other.
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PHOTOMETER, JOLLY'S (0525)
Block comprising two pieces of polythene approx. 25mm square and 10mm thick, separated by a tin foil, mounted on stand behind aperture of 12mm diameter.
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NEWTON'S COLOUR DISC, ON STAND (0526)
For demonstrating that white light is composed of all the spectral colours through the additive mixing of the colours. Comprising a multi-coloured circular disc having sectors of various spectral color in proper proportions. On rotating the disc at sufficient speed, all the colours will be observed to disappear by merging into a single white colour. The disc has a friction pulley at the back touching the driving wheel with a handle. Complete assembly mounted on a stable base.
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