This apparatus consists of two identical units, each provided with Polaroid disc mounted in a rotatable mount, with aperture of 25mm. Both rotatable mounts have a lever to add rotaon and a pointer which traverses a 75mmdiameter brass silvered scale divided into 360 1. The size is universal and can be fied to any size of collimator and telescope. To fit over the object end of telescope and colimator.
Imported Laser tubes along with SMPS Power Supply are housed in thick powdered coated aluminium box. From the hole the laser beam comes out . Supplied with rectangular holder & heavybase
A compact, fully solid state instrument produces an intense beam of light at a wavelength 635-670nm for red colour. This semiconductor diode laser is mounted in a simple mount. Supplied completely with power supply
Generally this light source is used for above Michelson Interferometer. Supplied with sodium vapour lamp transformer 35 W, sodium vapour lamp 35W & heavy metal box for sodium vapour lamp with electrical fing
A simple device for the rapid qualitative examination of the composition of emission and absorption spectra. It has the principal components â?? collimator, prism, and telescope, all arranged along the same straight tube. Comprises a plated brass pipe with adjustable slit at one end for adjusting the inside amount of light entering inside, and a drawtube at the other end having eyepiece. The drawtube can be slid along its length for sharp focusing of the spectrum and is fitted with a multi-element prism causing appreciable dispersion of light without the device.
A diffraction grating spectroscope for viewing visible lines and absorption spectra. The spectrum is visible, superimposed on a scale, which gives the approximate wavelengths. The high-resolution diffraction grating replica used produces an extremely bright spectrum. The complete body of unbreakable molded plastic and can easily be held in the hand. The construction eliminates internal reflections to provide the sharpest, clearest spectrum possible.
Our Advance Student Spectrometer is a solidly - the constructed instrument, thoughtfully provided with features and accessories that assist student sin making precise measurement of spectral lines or prism angle.� High Quality, large-aperture optics produce sharp spectral images, while precision machining allows for precise rotation and accurate measurement. Resolution to1minuteof an Arc.� The 125mm or 150mm diameter, precision engraved degree plate is complemented by 2 precision engraved verniers, one on each side of the instrument for convenient reading.
Collimator:
Focal Length: 178mm
Aperture : 25 mm (adjustable by pinion & rack), adjustable rectangular slit
Telescope :
Focal Length: 178mm,
Aperture:� 25 mm (adjustable by pinion & rack), fitted with 10xRamsden eyepiece with cross-line graticule.
Eyepiece :
Ramsden x 10 fitted with cross wire
Fixation Stand :
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.
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