Osaw Industrial Products Pvt. Ltd.
Osaw Industrial Products Pvt. Ltd.
Ambala, Haryana
GST No. 06AAACO2804K2ZM
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College Physics Light and Optics Lab

Pioneers in the industry, we offer advanced spectrometer sl806, fabry perot sn1063, polarization of light by half wave plate sk073, spectrometer sn1054, polarization of light by quarter wave plate sk175 and polarization of light and verification of malus law sk045 from India.

Advanced Spectrometer SL806

Advanced Spectrometer SL806
  • Advanced Spectrometer SL806
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Product Details:

ModelSL806
Scale MaterialBrass
Scale Diameter175 mm
ObjectiveAchromatic lens,f = 178mm,Aperture 32mm
SlitGerman silver with knurled screw
Reticle90 Deg cross etched on glass
Least count20 seconds
Eyepiece15X,Ramsden eyepiece
Vernier4 verniers (Telescope & Prism table)
Base Diameter220 mm
Base MaterialAluminium casting
Special FeaturesManufactured on CNC machine. Supplied in wooden box

Principle and Working:
The working of a spectrometer is based on the principle that when light falls on an optical device such as a prism or diffraction grating each wavelength is refracted or bent by a unique angle. A precise spectrum can be determined by measuring the angles at which light is refracted or bent.

Experiments:
  • Exp-1 To determine the refractive index of the material of prism using sodium light.
  • Exp-2 To determine the dispersion power of the prism.
  • Exp-3 To determine the resolving power of the prism.
  • Exp-4 To determine the wavelength of sodium light using a plane diffraction grating.
  • Exp-5 To determine the resolving power of a plane diffraction grating.
  • Exp-6 To verify Cauchy’s equation (Mercury light source required).


Salient Features :
  • 4 Two double ended verniers (Four verniers).
  • 4 Smooth motion of telescope & vernier scale.
  • 4 Spindle & other critical components manufactured on CNC machine.
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Fabry Perot SN1063

Fabry Perot SN1063
  • Fabry Perot SN1063
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Product Details:

Usage/ApplicationLaboratory
Model Name/NumberSN1063
Flatness of Reflective Mirrors0.1 Lemda
Diameter of Reflective Mirrors30 mm
Reflectance of Mirrors95 %
Effective Travel of Preset Micrometer~ 3 mm
Min Division Value of Preset Micrometer0.01 mm
Travel of Fine Adjustment of Movable Mirror1.25 mm
Resolution of Fine Adjustment0.0005 mm
Low Pressure Sodium Lamp20 W

Experiments:
  • Exp-1 To observe multiple beam Interference.
  • Exp-2 To measure wavelength separation of Sodium D-lines.

Salient features :
  • Including Sodium Lamp with Power Supply
  • Smooth Mirror Movement
  • Compact Design
  • Two Micrometers with Observation Microscope

Key Topics:
  • Interference.
  • Wave length.
  • Coherent sources.
  • Febry Perot

Principle and Working:The Fabry-Perot interferometer is a standalone device that can be used to observe multiple-beam interference and measure the wavelength separation of Sodium D-lines. When equipped with other components, this device can be used to conduct other experiments such as to observe the spectral shift of a Mercury isotope or the splitting of spectral lines of atoms in a magnetic field (the Zeeman effect).
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Polarization of Light By Half Wave Plate SK073

Polarization of Light By Half Wave Plate SK073
  • Polarization of Light By Half Wave Plate SK073
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Product Details:

Usage/ApplicationLaboratory
Voltage230 V
ColorBlack
MaterialSS
Model Name/NumberSK073
Frequency50 Hz
Power SourceElectric

Experiments :
  • Exp-1 To measure the light intensity of plane polarised light as a function of the analyzer position.
  • Exp-2 To study the polarization of light by half wave plate.
  • Exp-3 To verify the inverse square law.
  • Exp-4 To verify Malus-law.

Salient features :
  • Monochromatic light.
  • Computer connectivity.
  • Precise measurement using light sensor.

Principle and Working :
A wave plate or retarder is an optical device that alters the polarization state of a light beam traveling through it. In the present setup, the diode laser light passes through polarizer to produce linearly polarized light. It then passes through the half wave plate λ/2. The λ/2 plate produces linear polarised light. For different angles of the λ/2 plate with respect to optic axis only the polarisation plane changes. The maximum and minimum are not changed which can be investigated with the analyser.
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Spectrometer SN1054

Spectrometer SN1054
  • Spectrometer SN1054
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Product Details:

Resolution0.1%
ModelSN1054
Spectral range350 - 900 nm
Accuracy0,5 nm (in measuring the wavelength)
Wavelength resolution1,5 nm
TransmissionFrom 0 to 100 %
Optical settingCzerny Turner
Sensorlinear silicium CCD sensor

Experiments:
  • Exp-1 To observe the spectrum of any light source : Ray Spectrum, Continuous Spectrum (Sun, Glowing Lamp, Candle), Fluorescent Spectrum.
  • Exp-2 Detections, photometric measures
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Polarization Of Light By Quarter Wave Plate SK175

Polarization Of Light By Quarter Wave Plate SK175
  • Polarization Of Light By Quarter Wave Plate SK175
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Product Details:

Usage/ApplicationLab
Voltage230 V
ColorBlack
MaterialSS
ModelSK175
Frequency50 Hz

Experiments :
  • Exp-1 To Measure the light intensity of plane polarised light as a
  • function of the analyzer position.
  • Exp-2 To study the polarization of light by quarter wave plate.
  • Exp-3 To study the polarization of light by two quarter wave plate.
  • Exp-4 To verify the inverse square law.
  • Exp-5 To verify Malus-law.


Salient features :
  • Halogen light source.
  • Computer connectivity.
  • Precise measurement using vernier light sensor.

Principle and Working :A wave plate or retarder is an optical device that alters the polarization state of a light beam traveling through it. In the present setup, halogen light source with yellow light filter passes through a polarizer to produce linear polarized light. This polarized light then falls on a quarter wave plate λ/4. The emergent light passes through analyser. It is investigated at different angles of λ/4 plate ( 0°, 30°, 45°, 60° and 90°) between the optic axis of the wave plate and the direction of the incident light. The light intensity can be investigated with the analyser over the range -90° to +90°. At 0° and 90° of λ/4 with respect to optic axis, the transmitted light is linearly polarized, at 45° it is circularly polarized, and at 30° and 60° it is elliptically polarized.
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Polarization Of Light and Verification Of Malus Law SK045

Polarization Of Light and Verification Of Malus Law SK045
  • Polarization Of Light and Verification Of Malus Law SK045
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Product Details:

Usage/ApplicationLaboratory
MaterialStainless Steel
Model Name/NumberSK045
ColorBlack
Frequency50 Hz
Voltage230 V

Experiments :
  • Exp-1 To Measure the light intensity of plane polarised light as a function of the analyzer position.
  • Exp-4 To verify the inverse square law.
  • Exp-5 To verify Malus-law.


Salient features:
  • Pin hole photo detector.
  • He-Ne laser with in-built power supply.
  • Optical bench with central support.
  • Transversal saddle for Y-axis motion.


Principle and Working:When a light beam passes through a polarizer filter, it gets linearly polarized. When this linearly polarized light passes through analyzer, its intensity depends on the angular position of the analyzer. The maximum light intensity is transmitted when the optical axis of polarizer and analyzer coincide. The intensity of transmitted beam depends on the angular position between the optical axis of the polarizer and analyzer (q) and is defined by Malus law as I=I 0 cos 2 q where I 0 is the intensity of incident light.
Further the intensity of light depends on the distance between the source and the detector and is defined by the inverse square law.
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Optical Fiber Characterization and Transmission SK177

Optical Fiber Characterization and Transmission SK177
  • Optical Fiber Characterization and Transmission SK177
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Product Details:

BrandIndosaw
MaterialSS
PhaseSingle Phase
Voltage230 V
ModelSK177

Experiment:
  • Exp-1 To measure the numerical aperture of single and multi-mode fibers.
  • Exp-2 To study the characteristic of 650nm diode laser.
  • Exp-3 To study the characteristic of fiber optics photodetector.
  • Exp-4 Measurement of splicing losses, bending losses and airgap losses in multi-mode fibers.
  • Exp-5 To determine the refractive index of transparent solids.

Salient features:
  • Separate transmitter & receiver section.
  • Multimode Fiber cable 2m and 2m PMMA.
  • Single mode fiber cable 5m
  • In line SMA adaptor.
  • Modular approach.
  • High precision digital micro volt metre.
  • Reflective index of transparent solids

In fiber-optic communication, both single and multi-mode optical fibers are used for the transmission of optical signals. Diode laser is used as light source, whether the system transmits digital or analogue signals. Laser fiber coupler is used to couple light from laser to fiber input end efficiently. There are mounts to hold input and output ends of the fiber firmly.
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Mach Zender Study SN1057

Mach Zender Study SN1057
  • Mach Zender Study SN1057
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Product Details:

MaterialStainless Steel
Chair Seating Height2 - 4 Feet
Usage/ApplicationLaboratory
ModelSN1057
FinishPolish

Experiments:
  • Exp-1 To measure the thickness of glass slide.
  • Exp-2 To study the Mach-Zender.
  • Exp-3 To study two-beam interferences.


Principle and Working:The Mach-Zender interferometer consists of two semi-reflecting plates (beamsplitters) and wo mirrors. A light beam is divided into two, after which both beams are recombined by eans of a semi- reflecting mirror. One of these beams will be named the Reference beam, while the other will allow us to take measurements on the vacuum index or plate thickness.
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Intermediate Spectrometer SL448

Intermediate Spectrometer SL448
  • Intermediate Spectrometer SL448
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Product Details:

ModelSL448
BrandIndosaw
Scale MaterialBrass
Scale Diameter150 mm
ObjectiveAchromatic lens,f = 178 mm,Aperture 32 mm
SlitGerman silver with knurled screw
Reticle90 Deg cross etched on glass
Least Count1 minute
Eyepiece15X,Ramsden eyepiece
Vernier2 verniers
Base Diameter170 mm
Base MaterialAluminium casting

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Speed Of Light SK077

Speed Of Light SK077
  • Speed Of Light SK077
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Product Details:

Usage/ApplicationLaboratory
Model Name/NumberSK077
Voltage230 V
Frequency50 Hz
Power SourceElectric

Experiment:
  • Exp- To determine the Speed of Light in air.

Salient Features :
  • 1MHz internal modulation frequency.
  • Dual photo detector.

Principle and Working :The LASER beam from the Transmitter strikes the Beam Splitter to split the beam in two perpendicular directions. The first beam is transmitted through Transmitter directly and is received in first channel of the receiver. The second perpendicular beam from Beam Splitter travels a larger distance by being reflected back from a mirror placed about 5 meter or more and is received in second channel of the receiver.
In the present setup, the time difference between the two peaks of received LASER signals can be observed on a oscilloscope (>40MHz) and can be used to calculate the Speed of Light.
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Focal Length of A Combination Of Lenses Using Nodal Slide Assembly SED1006

Focal Length of A Combination Of Lenses Using Nodal Slide Assembly SED1006
  • Focal Length of A Combination Of Lenses Using Nodal Slide Assembly SED1006
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Product Details:

MaterialSS
Voltage230 V
ColorBlack
Frequency50 Hz
ModelSED1006

Experiment :
  • Exp- To find out focal length of a combination of lenses using nodal slide assembly.

Salient Features :
  • Multipurpose A-base modular construction.

Experimental set-up has been designed specifically for determination of focal length of a combination of two convergent lenses using Nodal Slide Assembly. The set-up consists of Nodal Slide Assembly, Light source, slit, convex lenses, object screen and base support.
The set up is complete in all respect and requires no other accessories. Practical experience on this set up carries great educative value for Science and Engineering Students.
This setup helps students to understand the basic property of lens like focal length, focus point, principal point and nodal point centre of curvature etc.
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Wave From Helix Slinky SP254

Wave From Helix Slinky SP254
  • Wave From Helix Slinky SP254
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Product Details:

Helix Coil Diameter75 mm
Closed Length150 mm
Fully ExtendedApprox. 3m
ModelSP254

It is used for illustrating wave motion. A flat section anodized steel wire is wound in 75mm dia helix coil.
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Diode Laser Diffraction Experiment SK078/SK173

Diode Laser Diffraction Experiment SK078/SK173
  • Diode Laser Diffraction Experiment SK078/SK173
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Product Details:

ModelSK078/SK173
ApplicationLab

Experiments:
  • Exp-1 Diffraction of light by single slit.
  • Exp-2 Diffraction of light by double slit.
  • Exp-3 Diffraction of light by multiple slit.
  • Exp-4 Diffraction of light by fine wire.
  • Exp-5 Diffraction of light by cross wire.
  • Exp-6 Diffraction of light by wire mesh.
  • Exp-7 Diffraction of light by transmission grating.
  • Exp-8 Diffraction of light by coarse grating.
  • Exp-9 Diffraction of light by circular aperture (Pinhole).
  • Exp-10 Diffraction of light by grid.
  • Exp-11 Diffraction of light by grey filter.
  • Exp-12 Diffraction of light by tapered single slit.
  • Exp-13 Diffraction of light by circular opaque spots.

Salient features :
  • Imported diffraction slide set in SK078.
  • Set of 13 slides in SK173.
  • Class II diode laser.
  • Silicon detector.

Principle and Working:
Diffraction phenomenon of light can be observed when a laser beam passes through a diffraction slit. The intensity pattern can be determined using a pin photo detector with fine movement across the diffraction pattern.

In the present setup, the light intensity in the terms of current or voltage is noted at closed intervals by finely traversing the detector movement and observing the light intensity on a digital multimeter. The intensity versus distance curve is plotted on a graph for calculations. The device consists of one meter long optical bench with two transverse saddle for laser and slit mount and one transverse saddle with micrometer for detector. A number of diffraction slits and gratings are provided with this setup.
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Permittivity of Air Experiment SV244A

Permittivity of Air Experiment SV244A
  • Permittivity of Air Experiment SV244A
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Product Details:

Packaging TypeBox
Voltage0-30 V DC
ModelSV244A

By means of null method this balance measures tiny forces, it possess adjustable counterweight and an optical lever. To measure the repulsive force between parallel current-carrying conductors a pair of straight aluminium rods are given. Attractive force between charged capacitor plates ,a pair of plates are also included. In the electromagnetic experiment sufficient deflection may be caused by means of a current of 10-20A. For returning the balance to its original position, fractional weights are added to a small pan which is attached to the upper conductor rod, thus force between the conductors are measured. The dynamic definition of the Ampere or to determine the permeability of Air may be confirmed by interpretation of the result. Permittivity of the air may be observed by the analogous electrostatic experiment. An indirect estimate of the speed of light may be made from these two values. The whole experiment requires a diode laser & scale for the optical lever, fractional weight set for the current experiment, multimetyer for volts and amps, a 300V variable high voltage source and an AC or Dc current source for 10-20A. A detailed manual is included.

Experiments :
    • Exp-1 To measure the force of attraction between charged capacitor plates by Null Method.
    • Exp-2 To calculate the permittivity of Air.
    • Exp-3 To measure the force between current carrying conductor and determine the permeability of Air.

    Scope of Supply:

    Cat. No.Item NameQty.
    SV244Coulomb and current balance1
    SE1003Power supply 0-30V DC, 0-20A1
     Fractional weight set1
    SE067Multimeter1
    C4941Diode laser1
    SP134Wooden scale 50cm1
     Instruction manual1
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    Spectroscope (Bunsen Kirchoff) SL807

    Spectroscope (Bunsen Kirchoff) SL807
    • Spectroscope (Bunsen Kirchoff) SL807
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    Product Details:

    Usage/ApplicationLab
    Model Name/NumberSL807
    ColorBlack
    Observation tubeMoveable,with locking screw,slidable eyepiece
    ObjectiveAperture 18mm,f=160mm with symmetrical slit
    Scale tubeStationary,200-division scale
    Eyepiece15X
    PrismFlint glass (60 Deg)
    Total Height25 cm (approx.)
    Base Diameter170 mm
    Base MaterialAluminium

    Salient Feature:
    • 4 Direct wavelength reading after scale calibration.

    Key Topics:
    • 4 Emission & absorption spectrum of any spectrum tube.
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    Michelson Interferometer SK025

    Michelson Interferometer SK025
    • Michelson Interferometer SK025
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    Product Details:

    ModelSK025
    Voltage230 V
    Frequency50 Hz
    Power SourceElectric
    MaterialSS
    FinishPowder Coated

    Experiment:
    • Exp-1 To determine the wave length of monochromatic light. (using diode laser or He- Ne laser).

    Salient Features :
    • Precise measurement, mirror control is extremely fine with the
    • micrometer of least count of 0.0001mm.
    • Heavy base for high stability.
    • The mirrors and beam splitter are flat upto λ /8.

    Working and Principle:
    When a coherent light beam enters into beam splitter, it is dividedinto two parts, thus two beams travel in different directions, are reflected into each other through two mirrors forming interference patterns when they are combined and superimposed. In the present setup, measuring the wavelength of sodium light or He-Ne laser, using an equation: λ=2.DL/n


    Where DL is the total displacement whereas n is the number ofintensity maxima counted.
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    Caliens Camera SN1064

    Caliens Camera SN1064
    • Caliens Camera SN1064
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    Product Details:

    Sensor2048 pixels (14-micro m wide)
    ModelSN1064
    Sensitive ZoneApprox. 30 mm
    Adjustable integration time2 ms to 5 s
    ApplicationLaboratory

    Experiments:
    • Exp-1 The Study of diffraction and interferences
    • Exp-2 The Sampling of light images – Complete software, user friendly.
    • Exp-3 The Analysis of analogical/digital signals, function of the resolution of the converter
    • Exp-4 The Modelling of theorical curves.
    • Exp-5 The Time acquisition of the interferograms of the Michelson interferometer
    • Exp-6 The Initiation to spectrometry with Fourier transform

    Principle and Working:
    • The CCD camera is constituted of one optical head directly interfaced with a PC computer through USB port.
    • Once adjusted, it is possible to sample and operate luminous pictures with the help of complete & easy-to-use software program.
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    Michelson Interferometer SK002

    Michelson Interferometer SK002
    • Michelson Interferometer SK002
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    Product Details:

    ModelSK002
    MaterialMild Steel
    FinishColor Coated
    ApplicationLaboratory
    Voltage230 V

    Experiment:
    • Exp-1 To determine the wave length of monochromatic light. using sodium light source.

    Key Topics:
    • Interference.
    • Wave length.
    • Coherent sources.
    • Superposition.
    • Virtual light sources.
    • Circular fringes
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    Michelson Interferometer with Diode Laser SK079

    Michelson Interferometer with Diode Laser SK079
    • Michelson Interferometer with Diode Laser SK079
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    Product Details:

    ModelSK079
    MaterialSS
    FinishPowder Coated
    Voltage230 V
    Frequency50 Hz
    ApplicationLaboratory

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    Precision Interferometer SK059

    Precision Interferometer SK059
    • Precision Interferometer SK059
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    Product Details:

    ModelSK059
    Flatness Of Beam Splitter and Compensator Plate0.1 Lemda
    Minimum Travel Reading0.00025 mm
    Travel of Moving Mirror0.625 mm (travel of fine micrometer 25 mm)
    Sodium Tungsten LampSodium 10W,Tungsten15W
    He Ne Laser Output0.7 ~ 1 nW at 632.8 nm
    Overall Dimension350 mm x 350 x 245 mm
    WeightApprox. 15 kg

    Experiments:Michelson Interferometer
    • Exp-1 Interference fringes observation.
    • Exp-2 Equal thickness interference.
    • Exp-3 Determination of wavelength.
    • Exp-4 Refractive index of transparent slice.
    • Exp-5 Equal inclination interference.
    • Exp-6 White light interference.
    • Exp-7 Precise comparing of wavelengths.
    • Exp-8 Refractive index of air.
    • Fabry-Perot Interferometer
    • Exp-9 Multiple beam Interference
    • Exp-10 Measurement of the wavelength separation of sodium D- lines.
    • Exp-11 Measurement of wavelength of He-Ne laser.
    • Twyman-Green interferometer
    • Exp-12 Demonstration of Twyman-Green interferometer.

    Salient Features :
    • Includes both He-Ne laser and sodium tungsten lamp.
    • Highly stable, Easy operation & Precision optics.
    • Innovative design, with t hree modes of operation.

    Key Topics:
    • Interference.
    • Wave length.
    • Coherent sources.
    • Superposition.
    • Refractive index.
    • Michelson.
    • Fabry-Perot.
    • Twyman-Green.

    This equipment combines the historically important Michelson interferometer, the high resolution Fabry-Perot interferometer and the useful Twyman-Green interferometer.
    Measurements are precise in three classical modes of operation. Switching between the three modes of operation and aligning components are very simple, as this complete set of high quality components is carefully mounted on a heavy, stable base.
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    Two Beam Interference SN629

    Two Beam Interference SN629
    • Two Beam Interference SN629
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    Product Details:

    ModelSN629
    Wavelength632.8 nm
    Working Current4mA ~ 6mA
    Output powerMore Than 2mW
    Working timeMore Than 8 hrs.
    Working Voltage220 V AC,50 Hz
    Input PowerLess Than 2 W
    Dimension300x62x82 mm
    Weight1.5 kg (approx.)

    Experiment:
    • Exp-2 To determine the wavelength of monochromatic light source using Fresnel’s mirror.

    Key Topics:
    • Interference.
    • Virtual coherent source by reflection refractive index.
    • Fresnel mirror.
    • Wave length.
    • Virtual light source.

    Salient Features :
    • Optical bench is heavy, rigid and stable.
    • Fine measurement is also possible while using micrometer saddle.
    • Saddle can hold rod from 8mm to 15mm.
    • Height can be adjust using levelling screws.
    • He-Ne Laser have inbuilt power supply.

    Principle and Working:
    The Fresnel mirror is operated using grazing light incidence, whereby one mirror is tilted by approx. 1°- 2° with respect to the light beam. After adjusting the light source so that both mirrors are illuminated with equal luminous intensity, the inclination of the two reflected light beams can be adjusted with respect to each other by turning the knurled screw.
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    Laurents Half Shade Polarimeter SK018

    Laurents Half Shade Polarimeter SK018
    • Laurents Half Shade Polarimeter SK018
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    Product Details:

    Model Name/NumberSK018
    Tube Length200mm With central bulb,metallic caps & cover glasses packed in a velvet case.
    ApplicationLaboratory
    Light Starting Voltage470 Volts
    Light Input Voltage220V,50 Hz
    Lamp House300x85 mm

    Experiment:
    • Exp-1 To observe the rotation of the plane of polarization of monochromatic light by sugar solution for determining the concentration of solution of optically active substance.

    Salient Features :
    • Polarimeter function can be carried out precisely in an economical unit.
    • Sturdy metal housing and modular construction.
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    Sodium Light Source SL930

    Sodium Light Source SL930
    • Sodium Light Source SL930
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    Product Details:

    Usage/ApplicationLaboratory
    Model Name/NumberSL930
    Body MaterialSS
    Input Voltage220 V
    Frequency50 Hz
    Starting Voltage470 Volts
    Lamp House300x85 mm
    Aperture Diameter25 mm

    Scope of Supply :
    • Complete with housing for sodium vapor lamp, transformer, Base, Mounting rod, Bosshead and Sodium Bulb.
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    Faraday Effect Polarization With He-Ne Laser SK058

    Faraday Effect Polarization With He-Ne Laser SK058
    • Faraday Effect Polarization With He-Ne Laser SK058
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    Product Details:

    MaterialSS
    Voltage230 V
    ColorBlack
    Frequency50 Hz
    ModelSK058
    ApplicationLaboratory

    Experiments:
    • Exp-1 Observing the rotation of the polarization plane when polarized monochromatic light passes through flint glass under influence of a magnetic field.
    • Exp-2 Determining Verdet's constant from the relation between rotation angle and magnetic flux.
    • Exp-3 Verification of the relationship between Verdet's constant and wavelength (for SK063 only)

    Salient Features :
    • Experimental setup with He-Ne laser as well as halogen light source.
    • All electrical connections are made using safety sockets.
    • Compact electromagent
    • Digital Gauss Meter.
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    Advanced Polarimeter SK011

    Advanced Polarimeter SK011
    • Advanced Polarimeter SK011
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    Product Details:

    Voltage220 V
    Frequency50 Hz
    Model Name/NumberSK011
    Discharging Power20 W
    Working Current1.3 A

    Experiment:
    • Exp-1 To measure the rotation of the polarisation plane through optically active liquids and determine the concentration of sugar solution.

    Salient Features :
    • Stand alone setup integrates the sodium lamp, power supply and polarimeter in one unit.
    • Inbuilt reading magnifier to read the circular scale.
    • Easy to take reading because the scale reading and triple shades are visible simultaneously.

    Principle and Working :A polarimeter is an instrument which measures the rotation of the polarisation plane through optically active liquids. It is used to analyse the concentration and contents of substance like sugar solutions. The polarizer produces linear polarised light. This polarised light passes through the half wave plate and then the sample substance. After this it passes through the analyser to the eyepiece. In the eyepiece a triple shadow field can be observed and the angle of rotation is measured with a circular scale and vernier.
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    Newtons Rings Apparatus SK029

    Newtons Rings Apparatus SK029
    • Newtons Rings Apparatus SK029
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    Product Details:

    Usage/ApplicationLaboratory
    Model Name/NumberSK029
    MaterialStainless Steel
    Voltage230 V
    Focal Length200 mm

    Experiments:
    • Exp-1 To determine the wavelength of sodium light.
    • Exp-2 To determine the refractive index of a liquid by using newton’s rings apparatus.
    • Exp-3 To find the radius of curvature of planoconvex lens using newton’s rings experiment, given λ=5893A O.
    • Exp-4 To find the thickness of a thin sheet of paper (air wedge experiment).

    Salient Features:
    • Modular approach, components can be used in other experiments.
    • Economy model.

    Principle and Working:
    The light from monochromatic source is made to fall on an optically plane glass plate inclined at an angle of 45° to the vertical, where it gets reflected on to the plano-convex lens. The wavelength of monochromatic light source is determined from the radii of the interference rings.
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    Two Beam Interference SK005/SN629

    Two Beam Interference SK005/SN629
    • Two Beam Interference SK005/SN629
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    Product Details:

    ModelSK005/SN629
    Lamp House300x85 mm
    Input Voltage220 V
    Frequency50 Hz
    ApplicationLaboratory

    Experiment:
    • Exp-1 To determine the wavelength of monochromatic light source using Fresnel’s biprism.

    Salient Features :
    • Optical bench is heavy, rigid and stable.
    • Fine measurement is also possible while using micrometer saddle.
    • Saddle can hold rod from 8mm to 15mm.
    • Height can be adjust using levelling screws.

    Key Topics:
    • Interference.
    • Fresnel biprism.
    • Coherent sources by refraction.
    • Wave length.
    • Virtual light source.

    Principle and Working:Fresnel's Biprism used to create two Virtual coherent light sources by refraction and reflection respectively and observe interference phenomenon. Monochromatic light in these experiments is produced by sodium light source or he-ne laser. The wavelength (λ) can be determined by the formula
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    Optical Fiber Kit SEA92

    Optical Fiber Kit SEA92
    • Optical Fiber Kit SEA92
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    Product Details:

    Usage/ApplicationLaboratory
    MaterialStainless Steel
    ModelSEA92
    Voltage230 V
    Frequency50 Hz

    Experiments:
    • Exp-1 Calculate the numerical aperture and study the losses that occur in optical fiber cable.
    • Exp-2 To study losses at FIBER junctions.
    • Exp-3 To measure losses in dB of two optical FIBER patchcords and the coefficient of attenuation.
    • Exp-4 To study the relationship between the LED forward current and the LED optical power output.
    • Exp-5 To study the relationship between the optical input power, and the resultant photo current.
    • Exp-6 To study the AC characteristics of a linear intensity modulation system.
    • Exp-7 To study external circuitry to transmit an audio signal through an optical FIBER using the analogue transmitter and receiver.

    Salient features:
    • In-built function generator.
    • Separate transmitter & receiver section.
    • Microphone input section.
    • Audio amplifier output section.
    • Fiber cable 1m and 5m PMMA.
    • In line SMA adaptor.

    In order to understand the fundamental of optical fibers and analogue optical fiber communication, this kit has been designed. Wiring diagram for Fiber Optic Analogue Transmitter, Fiber Optic Analogue Receiver, Fiber Optic LED Driver and Optical Power Meter has been shown on the panel of kit.

    In the present setup, eight experiment can be performed by using this trainer. The user can design a number of other interesting experiments and small projects based on the kit. Provided with detailed instruction manual.
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    Faraday Effect Polarization with Halogen Light SK063

    Faraday Effect Polarization with Halogen Light SK063
    • Faraday Effect Polarization with Halogen Light SK063
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    Product Details:

    Voltage230 V
    ModelSK063
    ApplicationLaboratory
    FinishColor Coated
    Frequency50 Hz

    Principle and Working :
    • If a transparent isotropic material is placed in a strong magnetic field and linearly polarized light is transmitted in the direction of the magnetic field, the plane of polarization of linearly polarized light rotates by an angle.
    • In the present setup the optical activity of flint glass is investigated in a magnetic field. The angle of rotation of plane polarized light is proportional to the length (L) and
    • magnetic field (B).
    • Where, V-Verdet’s constant
    • The magnetic field is measured using Gauss meter with axial probe.
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    Faraday Effect Polarization with Diode Laser SK194

    Faraday Effect Polarization with Diode Laser SK194
    • Faraday Effect Polarization with Diode Laser SK194
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    Product Details:

    Model Name/NumberSK063,SK058,SK194
    Usage/ApplicationLIGHT & OPTICS,Electromagnetism,Plane of polarization
    Voltage230 V
    ModelSK194
    Frequency50 Hz

    Experiments:Exp-1 Observing the rotation of the polarization plane when polarized monochromatic light passes through flint glass under influence of a magnetic field.Exp-2 Determining Verdet's constant from the relation between rotation angle and magnetic flux.Exp-3 Verification of the relationship between Verdet's constant and wavelength (for SK063 only)

    Salient Features
    • Experimental setup with He-Ne laser as well as halogenlight source.
    • All electrical connections are made using safety sockets.
    • Compact electromagent.
    • Digital Gauss Meter.
    Other Models we have

    Faraday Effect with Halogen Light SK063
    Faraday Effect with He-Ne Laser SK058Faraday Effect with Diode Laser (green) SK194
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    Diffraction Laser Kit

    Diffraction Laser Kit
    • Diffraction Laser Kit
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    Product Details:

    MaterialSS
    ModelSK027/SK038/SK195
    ColorBlack
    ApplicationLaboratory

    Experiments:
    • Exp-1 To demonstrate that light spreads when it passes through a narrow aperture.
    • Exp-2 To observe the diffraction patterns by holes, single slit and double slit, mesh, grating, grid, opaque spots.
    • Exp-3 To demonstrate Young’s fringes.
    • Exp-4 To demonstrate Fresnel’s diffraction.
    • Exp-5 To measure wavelength of light using a millimeter scale as a grating.
    • Exp-6 To demonstrate fringes of equal inclination.

    Salient features :
    • Imported slits.
    • He-Ne laser with in-built power supply.
    • Translucent screen to view the diffraction pattern.
    • Hexagonal optical bench with locking arrangement.

    Principle and Working:Diffraction phenomenon of light cab be observed when a laser beam passes through a slit or grating. The diffraction pattern can be observed on a translucent screen.
    In the present setup single slit, double slit, multiple slit, single tapered slit, fine grating, holes, circular opaque spot, gray filter, mesh and coarse grating are used for diffraction experiments with a he-ne laser.
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    Particle Size Measurement SK172

    Particle Size Measurement SK172
    • Particle Size Measurement SK172
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    Product Details:

    Usage/ApplicationLaboratory
    MaterialSS
    ColorBlack
    ModelSK172

    Experiments:
    • Exp-1 Determination the wavelength of He-Ne laser using diffraction grating.
    • Exp-2 Determination the particle size of lycopodium powder.

    Salient features :
    • Imported slits.
    • He-Ne laser with in-built power supply.
    • Translucent screen to view the diffraction pattern.

    Shine an expended He-Ne laser beam through a plate dusted with lycopodium powder to construct circular rings on the screen which are nearly spherical and have a very uniform average diameter. The quality of the ring depends on the evenness of dusting.
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    Kerr Effect Polarization SK019

    Kerr Effect Polarization SK019
    • Kerr Effect Polarization SK019
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    Product Details:

    Usage/ApplicationLaboratory
    MaterialStainless Steel
    Model Name/NumberSK019
    ShapeRectangular
    Operating Voltage12V, 5A
    Cell Electrode Gap1 mm
    Cell Voltage Limit5 kV, DC (max.)
    Cell Dimensions50x50x20 mm
    Halogen Bulb12V, 50W
    Safety Sockets4 mm
    Rod Dia10 mm

    Experiment :
    • Exp-1 To demonstrate the kerr effect in nitrobenzene solution (only observation).
    • Exp-2 To measure the light intensity as a function of voltage across the kerr cell using photo detector.

    Salient Features :
    • All electrical connections are made using safety sockets.
    • Easy to setup experiment.
    • Can be performed by diode laser and halogen lamp.

    Principle and Working :
    Certain materials under the influence of strong electric field become doubly refractive. The effect known as Kerr effect can be observed in this experiment with nitrobenzene solution.

    In the present setup, a small glass container mounted with plate capacitor is filled with liquid. The container is kept between two filters placed at 90°. There will be dark field of view on screen initially but after applying electric field, the field of view brightens, because the light beam becomes elliptically polarised when passed through the birefringent liquid.
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    Spectrometry Spectrophotometry SN1056

    Spectrometry Spectrophotometry SN1056
    • Spectrometry Spectrophotometry SN1056
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    Product Details:

    MaterialStainless Steel
    Usage/ApplicationLaboratory Use
    Voltage230 V
    Frequency50 Hz
    Power SourceElectric

    Experiments:
    • Exp-1 To study 3D chemical kinetics.
    • Exp-2 To study coloured filter spectrum.
    • Exp-3 To study line spectrum.
    • Exp-4 To study Beer Lambert’s law.
    • Exp-5 To study solar spectrum.
    • Exp-6 To study Wien’s law.
    • Exp-7 To study reflection spectrum analysis.
    • Exp-8 To study sodium absorption peak.
    • Exp-9 To study colour temperature.
    • Exp-10 To study device calibration and uncertainty.

    Key Topics:
    • 3D chemical kinetics study
    • Coloured filter spectrum study
    • Line spectrum study
    • Beer Lambert’s law
    • Solar spectrum
    • Wien’s law
    • Reflection spectrum analysis
    • Sodium absorption peak
    • Colour temperature
    • Device calibration and uncertainty

    Optical fibres allow great freedom of movement. Used fordemonstrations during classes, they will let you move from source to source easily. The simple, intuitive software, with its multi-station system, allows measurement and superimposition of curves. It is ideal for showing the gases making up different bulbs, such as mercury in energy saving light bulbs. Combined with a video projector, the SPID spectrometer will prove indispensable in your classes. Three display modes, simple, coloured and spectroscope mode, are available.
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