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Pins
Polarimeter
Description
Suitable for determining specific rotation of optically active substances. It has Laurents quartz half shade device which make the system sufficiently accurate and at the same time simple, suitable for use with sodium light. The circular head is attached to the analyzer. Vernier movable over the scale enables reading 0-360° or 0-180°. A 200 mm tube is provided with the instrument. Mounted on a sturdy tripod stand.
Polarimeter, Senior
Description
Designed to accept observation tube upto 220 mm length. Its improved rotating half shadow system at the front ensures perfect focus and clear definition. With angular glass scale 0-360º, divided into degrees and reading upto 0.05º with micrometer. A sugar scale from 30º to 120º read upto 0.1 sugar degree. Supplied complete with two polarimeter tubes, 100 mm and 200 mm with dust cover.
Polariser and Analyser (Polaroid)
Polarising Filter Stress Determination
Description
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.
Prism
Prism, Glass
Ray Box
Description
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 metal plate having single and triple slits, a 12 V 24 W SBC line filament lamp and a lamp holder.
Ray Box
Description
A ray box consisting of a rugged sheet metal box with a 12 V, 10 W festoon type axially straight filament lamp. Fitted with a cartridge for holding 4 types of slits – single, double, triple and wide slots Ideal for quick adjustment to get the desired ray/beam type Includes colour filters Also included is a convex cylindrical collimating lens for adjusting the beam to obtain long clear tracks which can be parallel, converging or diverging.
Ray box Multi Slit
RAY OPTICS KIT
Ray Optics Kit
Description
Consists of 2 lamps and two stands, 1 pair housing shields, 2 combined single and triple slit plates, 2 multiple slit combs, 2 holders for combs and slit plates, 4 wooden light barriers, and following cylindrical lenses, of size 50 x 50 mm. 4 No Lenses of +7D, 2 of +10D, 2 of +17D and 2 of -17D.
Refractive Index of Water Apparatus
Spectrometer Prism
Spectrometer, Advanced
Description
Vernier reading to 30 seconds of arc. The 175 mm diameter scale is fixed. The table and telescope movements are completely independent of each other and read to 30 seconds of arc by means of double ended verniers and magnifiers. Both rotations have fine adjustment screws. Coarse adjustments can also be made by release of clamping screw. Collimator is mounted on a fixed pillar and is fitted with 175 mm fl. achromatic objective with 32 mm clear aperture and a laterally adjustable slit 6 mm long. Telescope is mounted on a movable pillar fitted with 175 mm fl. achromatic objective of 32 mm clear aperture and x 10 Ramsden eye-piece with a glass cross line graticule. Both the telescope and collimator have rack and pinion focusing and can be adjusted for leveling the axes of both units as well as for adjusting to the axis of rotation. Prism table is marked with lines to assist prism placement and has three table leveling screws. It also has an interchangeable clamping unit for the prism and diffraction grating. Complete with prism clamp, diffraction grating holder and a Tommy bar for adjusting optical axis, In case.
Spectrometer, Intermediate
Description
Reads to 1 minute of arc.150 mm diameter Scale with protective cover and acrylic windows to read verniers, is fixed to the telescope movement. The table is attached to double ended verniers reading to 1 minute of arc with magnefiers provided for the purpose. Both telescope and table rotations have fine adjustments. Collimator is on fixed pillar with 175 mm fl achromatic objective of 25 mm aperture and an adjustable slit. The telescope is on a movable pillar with 175 mm achromatic objective x 8 Ramsden eye-piece and glass crossline graticule. Both telescope and collimator have rack and pinion focusssing and their optical axes can also be adjusted. Prism table has lines to assist prism placement hand has three leveling screws. With prism clamp, diffraction grating holder and one tommy bar for axis adjustment, in case.
Spectrometer, Standard
Description
Reads to 6 minutes of arc (0.1°) 170 mm diameter metal scale graduated 360° x 1°, independently rotatable, with locking screw, vernier attached to the telescope reads to 0.1° (6 minutes of arc). Collimator is mounted on a fixed pillar, with an achromatic objective of 150 mm focal length and 21 mm aperture, and has an adjustable slit 6 mm long. The telescope is on a movable pillar, with a fine adjustment screw, an achromatic objective of 170 mm focal length, 21 mm aperture, Ramsden eye-piece and glass crosswire graticule. Both collimator and telescope have spiral focusing system and have axis adjusting arrangement. The table has 3 leveling screws, with lines marked to assist prism placement. With prism and grating holders, one small screw driver and one Tommy bar for axis adjustment Without prism.
Spectroscope
Description
Hand held simplest form of spectroscope. It can be used to get a general idea of the correlation between wavelength and observed color. A diffraction grating is used which spreads the incident light into its component wavelengths. An illuminated reference scale against which the spectrum may be viewed is also provided. Spectroscope (Wooden)
Spherometer
Spherometer
Stand For Optical Bench Accessories
Transformer and Stand For Sodium Lamp
Trapezoidal Prism, Acrylic
