It is Ramsden eye piece with a plain glass plate held between lens and eye lens at 0 an angle of 45 . This item replaces the normal spectrometer eye piece when aligning the instrument
A compact visible spectrometer which allows the direct reading of spectral length and employs a prism for dispersion. It is also useful for flame test of basic radicals (sodium, stronum, potassium, copper etc.) There is a single eyepiece and independent focussing tube for the gracule, which carries an index at 590mm, with Dâ?? marked right below the scale, (corresponding to the wave length of sodium light) can be calibrated to a known light source by adjustment of knurled screw. The amount of light admited to the spectroscope can be regulated by a variable slit, adjusted by a knurled ring round the rating tube.
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
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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.
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