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NEWTON'S COLOUR DISC, ON BENCH CLAMP (0527)
Similar to NEWTON'S COLOUR DISC, ON STAND but 200mm Newton's colour disc assembly mounted on a bench clamp stand
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KALEIDOSCOPE (0528)
A simple optical toy in a tube that produces beautiful symmetrical patterns due to reflection/refraction of light from numerous small colored glass pieces.
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PERISCOPE (0529)
An optical instrument that permits the view of an otherwise obstructed field above or below the level of viewer. Comprising a Z-shaped square tube with both the projecting arms having plane mirrors mounted at 45? facing each other
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PIN HOLE CAMERA (0530)
To illustrate the principle of image formation due to light rays passing through small apertures. Comprising a polished wooden box with a ground glass screen at the rear end and an adjustable sliding front with a hole
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PIN HOLE CAMERA KIT (0531)
Ideal for student experimentation in simple optics involving the basic pin hole camera. Other optical effects such as image inversion, effect of aperture size on depth of field and quality of image etc, can also be explored. The standard pack is sufficient for 8 students and consists of the following items. 8 cardboard boxes 150 x 100 x 100mm with hole, screen and lid. 50 sheets of black paper 200 x 250mm, One 200W lamp
One mounted lamp holder with flex One packet of pins.
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RAY BOX (0532)
Useful for studies of fundamental principles of optics using ray tracing technique. Comprises a well painted, die-cast metal box with an enclo sure that houses electric bulb for use as a light-source in the experiments. Open front of the bulb enclosure with holes all around the bulb holder and extended side-fins on the outside of the enclosure assist in the heat dissipation of the bulb. The integral side-rails provided with a set of vertical-grooves on inner side for accommodating various 45mm wide mountings such as slit plate and cylindrical lens. The 12V bulb with vertically straight filament, mounted in SSC bulb holder with a two core flexible connecting lead terminating in a pair of 4mm banana piugs for connecting it to low voltage AC power source. Additional slots permit the mounting of other accessories or components such as color filters for added experiments in ray optics. Supplied complete with slit plate, double ended single/triple but without collimating lens.
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RAY OPTICS AND COLOUR MIXING BOX (0533)
Sheet Metal box with 12V, 10W Festoon type axially straight filament lamp. The body is fitted with a cartridge for holding 4 types of slits - single, double, triple and wide slots for quick adjustment to get the desired ray/beam type and with colour filters. Also included is a convex cylindrical collimating lens for adjusting the beam type to obtain long clear tracks parallel, converging or diverging in nature.
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RAY TRACK APPARATUS (0534)
Comprises a wooden board with painted white, mounted on non-skid plastic feet, and a removable turntable about 170mm in diameter with two orthogonal lines along its diameter dividing it into four equal quadrants. Just beyond the rim of turntable, a circular scale graduated 90?-0-90?-090? x 1 ? is printed. Also includes a Ray Sox with a 12V, 24W bulb. Supplied complete with a cylindrical convex lens of focal length about 75mm and two double slits, giving one wide beam slit and one each of single, triple and five slits.
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LIGHT BOX & OPTICAL SET (0535)
A complete kit providing comprehensive range of optical experiments involving reflection, refraction and colour mixing. The kit designed around a light box, all black, well ventilated, consisting of a light source 12V, 24W vertically straight filament lamp fitted in the holder through top of the box. Incorporates and adjustable collimating lens towards one end for producing convergent, divergent, or parallel light beam; with other end having triple aperture system for colour mixing experiments. Adjustable hinged mirrors along both sides of the box facilitates colour mixing of all three beams. All apertures in the box are provided with vertical channels to hold slits plates and colour filters. A two core flexible connecting lead terminating in a pair of 4mm banana plugs connects it to low voltage AC power source. The complete optical set includes: Set of 5 Acrylic Blocks (Prisms) one each of rectangular, semi-circular, equilateral triangular - 60?x60?x60?, triangular - 90?x60?x 30? and right angled triangular - 90?x45?x45?. All blocks are free of optical imperfections and sharp edges. Set of 3 Acrylic Cylindrical Lenses one double concave, one double convex (both having same radius of curvature) and one thick double convex. Set of 3 mirrors : highly polished reflecting surfaces and free standing. Includes one each of parabolic, semi-circular and plane glass (mounted on stand) Set of 2 slit plates, black: one with three narrow slits and one narrow, and other with four narrow slits and one wide slit. Set of 8 colour filters, mounted: 3 primary colours - one each of red, blue and green, and 5 secondary colours - one each of cyan, violet, orange, yellow and magenta. Set of 8 Coloured Cards: one each of red, blue, green, violet, orange, cyan yellow and pink. All acrylic blocks and lenses, cylindrical and parabolic mirrors provided with finger grips, enabling their handling without touching their active optical surfaces. The bottoms of all refractive components are frosted to minimize internal reflections and revealing the path of light as it passes through. Supplied complete with a spare bulb with complete set housed in a moulded Styrofoam case for long life storage.
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OPTICAL SET FOR LIGHT BOX (0536)
Set of optical components supplied along with light box, available as spares.
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CYLINDRICAL LENS FOR RAY BOX (0537)
Cylindrical lens for use with Ray Box, about 45mm wide. Focal length approx. 15cm (+6. 67D).
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RAY OPTICS KIT (0538)
A versatile kit of components for ray optics experiments. Investigations possible include linear propagation of light rays, focusing of rays by cylindrical lenses, focusing of multiple rays showing aberration, law of reflection, refraction in water, prisms etc. Complete contents include: Lamps holder with 12V, 24W lamp and stands 2 Nos., Housing shields 1 pair, Combined single and triple slit plates 2 Nos., Multiple slit combs 2 Nos .,
Holders for combs and slit plates 2 Nos., Wooden light barriers 4 Nos.,
Plano cylindrical lenses + 7D 4 Nos. Plano cylindrical lenses + 10D 2 Nos., Plano cylindrical lenses + 17D 2 Nos., Plano cylindrical lenses -7D 2 Nos.
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COLOUR FILTERS, MOUNTED (0539)
Coloured, gelatine film, 50mm square, card mounted. Useful for experiments in primary and secondary colours optics experiments, colour mixing investigations etc., as in light box.
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HARTLE'S OPTICAL DISC, ROTATABLE (0540)
For exploring the various concepts of optics involving reflection and refraction using ray tracing technique. Comprises a sheet metal disc, about 30cm in diameter, painted white at the top with clamping assembly at its underside for mounting it on a vertical support rod in either of horizontal or vertical plane and is rotatable about its axis. The upper side of disc has a circular scale along its rim graduated 90?-0-90?-0-90?x1? and divides the disc in four equal quadrants with its center clearly marked. Shapes of various optical elements also clearly marked on the disc to facilitate their placement while performing experiments, The clamp at the underside has metal bar projecting radially outside with adjustable lamp holder mounted at the other end with an adjustable collimating lens to get divergent, convergent or parallel beam as required. A rotatable disc attached in front of collimating lens provides option of single, double, triple or quadruple slits for range of experiments. Complete assembly mounted on stable cast metal heavy base. Supplied complete with reflective components - one each of plane glass mirror, polished semi-circular cylindrical mirror; and set of 6 refractive components, acrylic blocks (prisms) - one each of semicircular, bi-convex, bi-concave, right angled prism, equilateral prism and trapezoidal prism. All optical elements provided with powerful magnets at their bottom for placing them securely on the disc in either of horizontal or vertical disc position. The bottoms of all refractive components are frosted to minimize internal reflections and revealing the path of light as it passes through.
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HARTLE'S OPTICAL DISC, ROTATABLE SPARES Set of 6 Optical elements (0541)
One each of semi-circular, bi-convex, bi-concave, right angled prism, equilateral prism and trapezoidal prism, packed in a case for use with Hartle's Optical Disc . For exploring the various concepts of optics involving reflection and refraction using ray tracing technique. Comprises a sheet metal disc, about 30cm in diameter, painted white at the top with clamping assembly at its underside for mounting it on a vertical support rod in either of horizontal or vertical plane and is rotatable about its axis. The upper side of disc has a circular scale along its rim graduated 90?-0-90?-0-90?x1? and divides the disc in four equal quadrants with its center clearly marked. Shapes of various optical elements also clearly marked on the disc to facilitate their placement while performing experiments, The clamp at the underside has metal bar projecting radially outside with adjustable lamp holder mounted at the other end with an adjustable collimating lens to get divergent, convergent or parallel beam as required. A rotatable disc attached in front of collimating lens provides option of single, double, triple or quadruple slits for range of experiments. Complete assembly mounted on stable cast metal heavy base. Supplied complete with reflective components - one each of plane glass mirror, polished semi-circular cylindrical mirror; and set of 6 refractive components, acrylic blocks (prisms) - one each of semicircular, bi-convex, bi-concave, right angled prism, equilateral prism and trapezoidal prism. All optical elements provided with powerful magnets at their bottom for placing them securely on the disc in either of horizontal or vertical disc position. The bottoms of all refractive components are frosted to minimize internal reflections and revealing the path of light as it passes through.
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