Products    /    Physics Lab Instruments    /    Spectroscopy    /    Spectrometer - Goniometer 02

Spectrometer - Goniometer

Model: HO-SP-RE-02

Holmarc’s Spectrometer Goniometer is designed as a versatile instrument suitable for precise determination of the optical parameters of prisms and gratings. It can also be used as a spectroscope, for qualitative examination and measurement of emission and absorption spectra. Holmarc’s well designed mechanics of the Goniometer allows maintenance-free operation over many years.

This system consists of a mercury lamp with power supply, prism with holder and transmission grating with holder. The collimator and the telescope have a focal length of 202 mm and a diameter of 32 mm. The collimator tube has an adjustable slit.

Experiment Examples

    Determine the refractive index of a glass prism

    Demonstrate the relationship between refractive index and wavelength (dispersion curve)

    Calculate the resolving power of the glass prism from the slope of the dispersion curves

    Determine the wavelengths of the mercury spectral lines

    Determine the grating constant of a diffraction grating based on the diffraction angle of the high intensity spectral lines of mercury

    Determine the angular dispersion of a grating

    Calculate the resolving power required to separate the different Hg-Lines


Spectrometer - Goniometer

    Angular scale : 0° to 360° with 0.5° divisions

    Resolution : 30 arc second

    Focal length collimator : 202 mm

    Focal length Telescope : 202 mm

    Observation Tube : Infinity Variable

    Ocular : Crosshair

    Slit Tube : Symmetric Precession Slit

    Variable slit : Micrometer variable 0 - 3mm

    Eye piece Magnification : 10x

    Construction Material : Aluminum

    Finish : Black Anodized


    Material : NSF 1 (60°), BK7 1 each

Transmission Grating

    Size (mm) : 38 x 50 mm

    Lines / mm : 500 and 1000 lines / mm


    Prism table attached with vernier table

    30 arc second resolution

    Covered Goniometer scale

    Classic design spectrometer Goniometer

    High-quality optics

    Symmetrical precision slit
Scope of Supply



Model No: HO-SP-RE-02-G
Resolution of prism table : 30 arc second
Resolution Stage : 30 arc second
Quantity : 1 no.

Mercury Vapor Lamp

Mercury Vapor Lamp

Model No: HO-SP-RE-02-MLPS
Input : 230V, 50 Hz
Quantity : 1 no.

Holographic Grating

Holographic Grating

Model No: HO-SP-RE-02-HG
Groove Spacing : 500 & 1000 lines / mm
Size : 50 x 50 mm
Quantity : 1 no.

Hollow Prism

Hollow Prism

Model No: HO-SP-RE-02-HP
Material : PMMA
Quantity : 1 no.

Equilateral Prism

Equilateral Prism

Model No: HO-SP-RE-02-EP
Material : N-SF1
Quantity : 1 no.


User Manual

Home | Products | Supports | Company | Contact Us


©2024 Holmarc Opto-Mechatronics Ltd. All rights reserved.