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Accessories For Optical Bench
Stand for Optical Bench Accessories
For use with our optical bench PH30518. The stand for mounting various optical accessories is made of wooden base (75 x 40 mm). The pillar can take 6 mm dia. rod and has a lock screw. The stand is marked with an index line. Overall height 72 mm.
PH30625 -
Accessories For Optical Bench
Combined Object and Receiving Screen
Comprising a black metal frame 150 x 100 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 100 x 50 mm.
PH30635 -
Optics
Polarising Filter Stress Determination
Demonstrate stress patterns in solids with this new and valuable equipment. Two polarising filters, mounted on a graduated frame are placed on a plastic base. Clear acrylic pieces of different shapes are introduced between the filters; when pressure is applied to the solids the resulting stress patterns are observed. An important method of demonstrating polarisation and stress. Includes instructions.
PH30642 -
Accessories For Optical Bench
Fresnel’s Biprism
The 40 x 30 mm bi prism with optically worked surfaces is mounted in a frame with hinged joint and has a micrometer screw for adjustment. For determination of the wavelength of light by measurement of interference fringes produced by interference between two beams of light originating as a single beam from a common source and split by the bi prism.
PH30670 -
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Optics
Newton Ring Microscope
For Newton Ring Apparatus. Can also be used in various positions, heavy cast iron body, microscope tube mounted on a carriage sliding on top of the base, provided with fine adjustment screw, scale 120 mm long, vernier reading to 0.01 mm fitted with 10x Ramsden eye-piece, glass cross-line graticule and 75 mm focus achromatic objective.
PH30675M -
Optics
Laser Reflection and Refraction Tank
Laser Reflection and Refraction Tank demonstrates the principle of reflection and refraction. The clear circular acrylic tank has a circular scale graduated on the white base of the tank, making it easy to measure angles. Adjust the pivot-arm mounted laser to any angle along its full 360° range and measure the angle of reflection or refraction. Rotate the laser and observe first a reflected ray, then both a reflected and refracted ray, and finally just a refracted ray. Leveling screws on the tank’s base make leveling quick and easy. The laser is attached to the pivot-arm by a magnet and can be removed for use in other experiments. Instructions included.
PH30676 -
Optics
Demonstration Diffraction 3 in One
For demonstrating the principle of diffraction grating and the way in which its properties are dependent upon the number of lines per unit length. Comprises a card mount 90 x 40 mm approximately with three 16 x 9 mm apertures, each containing a diffraction grating replica. The gratings are of 100 lines/mm. 300 lines/mm and 600 lines/mm, respectively and are protected by cover glasses.
PH30677 -
Optics
Malus’ Law
Students can investigate the relationship between the intensity of transmitted light and the angle of rotation of two polarizing filters. A graduated cartridge containing two polarizing filters allows students to observe the change in intensity as they are rotated relative to one another. The analyzer allows quantitative readings to be taken using a voltmeter at five-degree intervals as the polarizing filters are rotated from minimum to maximum transmission. The output from the analyzer changes linearly with light intensity and so the resulting data can be used to verify Malus’ Law. Includes instructions.
PH30686
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