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Product -> Light

Starlac wide range of Physics Instruments include Light Lab Instruments like Convex / Concave Lenses, Magnifier, Lens Holder, Mirrors and Mirror Support Block, Prisms, Optical Bench, Ray Optics Box/Kit, Spectrometer, Sodium / Mercury Lamp, Telescope/Microscope Mount, Demonstration Model, Newtons Colour Disc, Polarimeter for School and Colleges.

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Young's Slits
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Young's Slits   (LT-2073)

To measure wave length of light by observing fringes produced by interference of two light beams from a common source, passing through two slits. Comprises a photographically reproduced double slit 10 mm x 1 mm. Separation, protected by glass plates in 50 x 50 mm mount. Mounted in a frame with a hinged joint and < micrometer screw to give fine adjustment.


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Fresnel Bi-Prism   (LT-2074)

To determine wave lengths of light by observing fringes produced by two interference light beams splited by Biprism.
The bi-prism 40 x 30 mm, with angle of 178 at the centre line of the face. Mounted in a frame with hinged joint and has a micrometer screw for fine adjustment.


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Lloyds Mirror
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Lloyds Mirror   (LT-2075)

To reflect a glancing beam of light to produce interference with an undeviated beam of light from the same source. It comprises a plane glass 75 x 38 mm with black rear surface, mounted in a metal frame.


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Graticule Eye-Piece   (LT-2076)

A Ramsden eye-piece with draw tube focusing, provided with a ^glass graticule divided 0.10 x 0.1 mm and mounted on a 75 mm dia metal screen.


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Polariser and Analyser (Polaroid)
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Polariser and Analyser (Polaroid)   (LT-2077)

Comprises two identical unit each provided with a polaroid disc mounted in a rotatable mount with an 25 mm aperture. Both mount have a pointer traversing, 75 mm diameter, scale divided 90-0-90 x 1.


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Stand For Lens Holder
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Stand For Lens Holder   (LT-2078)

Comprises a stout metal pillar with clamping screw, supported on 100 x 50 mm base with an engraved index line at one end. It is to accept standard 6 mm rods.


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Double Rod Lens Holder
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Double Rod Lens Holder   (LT-2079)

For lenses upto 62mm dia, suitable to use with optical bench stands
Combined Object and Receiving Screen P-5095 Comprising a black metal frame 150 x 100mm with an aperture and removable white card screen. Mounted on base 100 x 50mm.


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Combined Object and Receiving Screen
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Combined Object and Receiving Screen   (LT-2080)

Comprising a black metal frame 150 x 100mm with an aperture and removable white screen. Mounted on base 100 x 50mm.


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Matt White Screen
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Matt White Screen   (LT-2081)

A sheet metal screen, painted matt white, with a cut out in one side, to locate over a metre rule, can be used in vertical or horizontal position. Approx sizes 125 x 70 x 200mm high.


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Optical Disc, Hartley's
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Optical Disc, Hartley's   (LT-2082)

A 30cm. dia, white painted steel disc marked from 0 to 360 at every 1, with centre mark, on a stable cast iron base. The main disc and the lamp house (with 12V, 24W bulbs) can be rotated and held in any desired position. With the lamp house, a rotatable disc with single, double, triple and quadruple slits and with adjustable lens carrier with lens for divergent, parallel or convergent light beams is provided. Optical elements provided for reflection are 50 x 25mm, plain glass mirror and a polished plated metal cylindrical mirror. Optical element for refraction is semi circular, bi-convex, bi-concave, right angle prism and trapezoidal acrylic blocks. These Optical elements have powerful magnets attached for fixing of blocks to the disc.


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Optical Elements
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Optical Elements   (LT-2083)

Consist of 9 pieces of optical components. Supplied ^ a partitioned velvet lined box, to be used for.


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Ray Track Apparatus
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Ray Track Apparatus   (LT-2084)

Wood board with matt white surfaces, mounted on plastic feet carries a circular scale with 0-360, four quadrants 0- 90 graduated every 2 , removable turntable 170mm dia with 2 lines at right angles and a Ray Box with a 12V, 24W bulb. Supplied with a cylindrical convex lens of focal length 75mm and two double screens, giving one wide slit and one each single, three and five slits.


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Ray Optics Box
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Ray Optics Box   (LT-2085)

A ventilated lamp house having an open front with extended sides finned externally for heat dissipation and vertical internal grooves to accommodate a slit plate and cylindrical lens. It has a light source comprising 12 volts lamps in a holder with one meter of twin flex having banana plugs. Complete with metal plate having single and triple slits and whitened on one side and other side black matt. Without lens.
Accessories and Spares
a) Lens Cylindrical - One no.
b) Spare lamp 12 V, 24 W
c) Filters, set of seven colours


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Ray Optics and Colour Mixing Box
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Ray Optics and Colour Mixing Box   (LT-2086)

It comprises a double ended metal box to enable two sets of students work independently with the same box. Side apertures are provided for colour mixing experiments and have blanking plates, when the side apertures not in use.

This kit is very useful for reflection, refraction and colour mixing experiments. The light box consists of a light source (12V, 24W lamp) producing convergent, divergent, or parallel beam. On one end, an adjustable cylindrical convex lens (for parallel beam) and on the other end, a triple aperture system for colour mixing experiments (lateral aperture are provided with adjustable hinged mirror). All apertures in the box are provided with vertical channels to hold slits plates and colour filters. The optical set includes:

a) 8 acrylic blocks
b) Set of three mirrors
c) One black plate with three narrow slits at one end and
one narrow slit at other end.
d) One black plate with five narrow slits at one end and
one wide slit at the other end.
e) Set of seven mounted different colour filters.
f) Set of seven different colour cards


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Optical Board, Rectangular
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Optical Board, Rectangular   (LT-2087)

Comprises of M.S. sheet, 75 x 100 cm, wall mounting. The light box consist of a light source (12V, 24W lamp) producing conversent, divergent, or parallel beam and on other end, a triple aperture system for colour mixing experiments. Supplied with all necessary optical components which are held on the board with magnets and graduated optical disc 30cm dia.


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