Advance spectrometer with an improvement that the telescope and collimator are held in support rigidly and in perfect alignment. Vertical adjusting screws are provided to both the telescope and collimator. Clamping devices are provided to lock the telescope and collimator are adjustment i.e. fine adjustment to the telescope & collimator tubes are provided laterally as well as vertically
This is an advanced deluxe spectrometer of size 7" spectrometer, we have made arrangement for Diode laser&detectorinstead of telescope & collimator. The diode laser is held in support rigidly &in perfect alinement at the place of the collimator. similarly, the output detector is held in support rigidly& in perfect alinement at the place of the telescope. Vertical adjusting screws to aline the diode laser & detector. Supply with grating holder, grating, diode laser with power supply, and output detector with a digital meter.
Scale:� 125 mm dia. divided 0 to 3600 x 0.5 degree readable with vernier to1minute of arc
Collimator:� Achromatic objective lens 175mm FL, the clear aperture of 32mm. Rack and pinion focusing mechanism. Adjustable slit 6mm long. Mounted on a fixed pillar.
Telescope :� Achromac: Objective lens 175mm FL, the clear aperture of 32mm. Rack and pinion focusing mechanism. Mounted on a movable arm with a slow and fine moon.
Ramsden Eyepiece:� 15 X magnification with cross line glass graticule and in and out focus adjustment.
Prism Table  85mm diameter table is provided with three leveling screws and is marked with lines to assist placement of prism
With accuracy 2%, Built-in Amici prism and special light reflection system for colour elimination to obtain sharp critical boundary line and optimum contrast.
These hands-on experiments reveal the mystery of how light travels. This kit includes instrucons for reflecng and refracng light, and includes light theories. A variety of translucent opaque objects and a Teacher's Guide are also included
The Vertical Reading Microscope consists of a microscope with rack focusing adjustment, mounted horizontally on an adjustable vertical column. The stereo typed design of the vertical column moving through 15 cm by rack & pinion is now replaced by a superior quality vertical pillar carrying the scale with the entire 15 cm vertically by smooth rack & pinion, moving inside a heavy vertical column carrying the brass vernier. Vernier spring is loaded for precise opposition to the scale. A guide slot and key ensure up&down movement the same plane. The stainless steel scale & vernier is machine divided to accuracy within �±0.01% or beer. The horizontal microscope tube is mounted on the vertical column and is adjustable by smooth rack & pinion, through twin-knobs on both sides. The microscope moves on the machined inter ground guides.
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 veritcal plane and is rotatable about its axis. The upper side of disc has a circular scale along its rim graduated 90-0-900-90 and divides the disc in four equal quadrants with its center clearly marked. Shapes of various opcal 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 reflecitve components one each of plane glass mirror, polished semi-circular cylindrical mirror; and set of 6 refracitve components, acrylic blocks (prisms) one each of semi-circular, bi-convex, bi-concave, right angled prism, equilateral prism and trapezoidal prism. All opitcal elements provided with powerful magnets at their boom for placing them securely on the disc in either of horizontal or vertical disc posiiton. The booms of all refractive components are frosted to minimize internal reflections and revealing the path of light as it passes through.
LO-6268Â Hartle's Optical Disc, Rotatable
LO-6268Â Set of 6 Optical elements, one each of semi-circular, biconvex, bi-concave, right angled prism, equilateral prism and trapezoidal prism, packed in a case for use with Hartle's Optical Disc
A versatile kit of components for ray optics experiments. Investigaons possible include linear propagtiaon of light rays, focusing of rays by cylindrical lenses, focusing of mutilple rays showing aberration, law of reflection, refraction in water, prisms etc. Complete contents include
1. Lamps holder with 12V, 24W lamp and stands - 2 Nos
2. Housing shields- 1 pair
 3. Combined single and triple slit plates - 2 Nos.0
Seven LED's of different wavelength mounted on an acrylic base bended at their edge to stand it. LED's are selectable through a rotary switch surrounded by LED's. The apparatus uses a 5V DC external voltage via. 4mm colour coded sockets indicated with 5V and 0V respectively. To monitor the current and voltage across each LED 4mm sockets are provided to connect voltmeter and current meter indicated with 'V' and 'A' respectively. The operating voltage for the LED's can be adjusted with the help of potentiometer fitted on the base. Students can measure the threshold voltage.
A set of 500 cubes each of dimensions 1 cm 3 packed in a plastic box to avoid any chance of misplacement. One face of each cube is black colored. On throwing the cubes, it will represent atomic nuclei, to see how many decays during each throw. Decayed nuclei are removed prior to the next throw. Satisfactory results is obtained for an exponential decay curve without the hazards of radioactive material.
A metallic circular disc graduated (0-90) in four quadrants and subdivided into 1. A transparent acrylic semi-circular tank is fitted on the metallic disc to find out the refractive index of different liquids e.g. water, kerosene, oil, etc. All this assembly is fitted on a metallic base which is graduated from 1-7 to place the lightbox at any desired level.
A square section steel tube 25x25x430mm for carrying out an experiment in level gauging, basic scarring, absorption and parcel deflection in the magnetic field, etc. There is a raise 40cm scale graduate in millimeters along the front of the bench. There are also three magnetic molded plastic bench mounts with a 3mm slide slot to hold a range of absorbers or source holder. Two aluminum source holders are also provided, the large of which has three collinear 4mm holes to accept mounting pegs of standard sources. Complete with a full circular paper protractor and two bulldog clips.
Demonstrates the basic principle of the diffraction grating and for exploring the dependence of its properties on its resolution (lines per unit length). Comprises a set of 3 grangs -100, 300 and 600 lines/mm, mounted on a single slide card mount with three apertures of 16-9mm, one for each resolution, which is clearly marked below each aperture. With protective coating.
Set of optical components supplied along with light box, available as spares
LO-6304Â Set of 5 Acrylic Blocks (Prisms): one each of rectangular, semicircular, equilateral triangular - 60 60 60, triangular 90 60 30 and right angled triangular 90 45 45
LO-6304Â Set of 3 Acrylic Cylindrical Lenses: one double concave, one double convex (both having same radius of curvature) and one thick double convex
LO-6304Â Set of 3 mirrors: one each of parabolic, semi-circular and plane glass (mounted on stand)
LO-6304Â Set of 2 slit plates, black: one with three narrow slits and one narrow at either end, and other with four narrow slits and one wide slit at either end
LO-6304Â Set of primary colour filters: one each of red, blue and green.
LO-6304Â Set of secondary colour filters: one each of cyan, violet, orange, yellow and magenta
LO-6304Â Set of 8 Coloured Cards: one each of red, blue, green, violet, orange, cyan yellow and pink.
Compact in size, inexpensive, lightweight with low power consumption diode laser is housed in a plastic moulded case (90x90x42) mm approx., qualitatively used for ray optics demonstration and simple diffraction work as well as to indicate the points on overhead images and charts. It required three button cells to project visible red spot with a sharply focused beam of wavelength (630-680) nm with only 1mw power consumption.
Kit develops the creative mind of student and clear the theoretical concept related to the light, creation of rainbow from sunlight, straight line propagation, transparent and opaque materials, reflection and refraction, images formed by lens, colours and the spectrum. Kit consists of three wooden V shape lens holder, a white screen, two plane mirrors, a glass sheet, a plastic beaker, two prism, two lens/mirror supports, a flashlight, a candle, five set of color filter two convex lens, a concave lens and a plano convex lens
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
LO-6367 Ray Opcs and Colour Mixing Box
LO-6367 Light Pipe or Light Path Guide Demonstrator for demonstrating the principles of fiber opc i.e., to confine light within a guide or fiber due to total internal reflecon. A ray of light directed into its one end will be emitted out at the other end with superb display of internal reflection. Boom frosted or painted white to aid the visibility of path followed by the light ray
LO-6367Â Spare Slit Holder
LO-6367Â Spare Bulb, 12V 10W, Festoon type Axial Filament
LO-6367Spare Slit
LO-6367Spare Lens Plastic