Physics Lab Equipment

    LEOI-98 Intermediate Spectrometer Goniometer

1-Slit

2-Lock screw

3-Collimator

4-Brake frame

5-Loading stage

6-Leveling screw (3)

7-Lock screw

8-Telescope,

9-Lock screw

10-Auto-collimation eyepiece

11-Adj. knob

12-Pitch screw

13-Yaw screw

14-Support

15-Fine adj. screw

16-Lock screw

17-Brake frame

18-Lock screw

19-Stand

20-Rotation frame

21-Division ring

22-Vernier disk

23-Post

24-Fine adj. screw

25-Lock screw

26-Yaw screw

27-Pitch screw

28-Slit width adj. screw

29-Grating

30-Flat mirror

31-Transformer


LEOI-98 Intermediate Spectrometer Goniometer

LEOI-98 Intermediate Spectrometer Goniometer

Introduction

This intermediate spectrometer goniometer is used for spectral and angle measurements to verify optical reflection, refraction, diffraction, interference and polarization principles.

 

Experimental examples are:

 

1. Measure prism angle based on reflection

2. Measure min-deviation angle of prism based on refraction

3. Calculate refractive index and dispersion of material

4. Measure wavelength of light or grating constant based on diffraction and interference

 

Using an optional Hydrogen lamp, atomic spectral lines of Hydrogen, such as the Balmer series, can be measured and the Rydberg constant can be calculated (LEOK-70 is an optical rail version of this kind of apparatus).

 

Using a set of optional polarizer, analyzer and quarter-wave plate, a variety of optical polarization experiments can be conducted, such as polarization by reflection and measurement of Brewster’s angle, verification of Malus’s law, generation of circularly and elliptically polarized light, and demonstration of ellipsometry.


Specifications

DescriptionSpecifications
Angle measurement accuracy1'
Optical parametersFocal length of objectives (collimation & telescope): 170 mm
Effective aperture: dia 22 mm
Field of view: 3°22′
Focal length of eyepiece: 24.3 mm
Max. distance between collimator & telescope120 mm
Slit width0.02 - 2 mm adjustable
Eyepiece compensation range± 5 diopters
StageDiameter: 70 mm
Rotating range: 360º
Vertical adjustment: 20 mm
Scale diskDiameter: 178 mm
Graduation: 0 - 360º
Division: 0.5º
Vernier reading: 1' (two symmetrical verniers)
Prism60º ± 5', ZF1 (nD=1.6475, nF-nC=0.09192)
Transformer6.3 V
Holographic grating300 l/mm


Part List

DescriptionQty
Host spectrometer1
Prism1
Optical parallel plate1
Handheld magnifier w/illumination1
Holographic grating1
Transformer1
Brush1
Spare lamp3
Screw driver1
User's manual1

Polarizer, analyzer and quarter wave plate (for polarization experiments)

1 set (optional)
Hydrogen-Deuterium lamp (for atomic spectrum experiment)1 set (optional)


    LEOI-98 Intermediate Spectrometer Goniometer

1-Slit

2-Lock screw

3-Collimator

4-Brake frame

5-Loading stage

6-Leveling screw (3)

7-Lock screw

8-Telescope,

9-Lock screw

10-Auto-collimation eyepiece

11-Adj. knob

12-Pitch screw

13-Yaw screw

14-Support

15-Fine adj. screw

16-Lock screw

17-Brake frame

18-Lock screw

19-Stand

20-Rotation frame

21-Division ring

22-Vernier disk

23-Post

24-Fine adj. screw

25-Lock screw

26-Yaw screw

27-Pitch screw

28-Slit width adj. screw

29-Grating

30-Flat mirror

31-Transformer


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