Optical Spectrometer

Quick answer: The Optical Spectrometer is a precision instrument with a collimator, rotating prism table and viewing telescope, used to measure angular deviation, prism angle and refractive index in senior-secondary, college and university physics labs.

Product Description

The LabEquip Optical Spectrometer provides a structured platform for studying refraction and dispersion quantitatively. A typical experiment directs light through the collimator to produce a parallel beam, places a prism or diffraction element on the central rotating table, and uses the telescope to locate and measure the resulting optical image against a graduated circular scale.

Measurement quality depends on accurate focusing, levelling and alignment of each part before readings are taken. The instrument’s angular range, scale least count, telescope magnification and table diameter are not stated in this listing; we have not invented these figures and recommend confirming the exact technical specification with our sales team before ordering for a specific practical.

Specifications

Suggested Procedure

• Level the spectrometer base and focus the telescope for parallel rays before starting.
• Adjust the collimator so it produces a clear, parallel beam through its slit.
• Mount the prism or diffraction element centrally on the rotating table.
• Rotate the telescope to locate the refracted or diffracted image and align the crosswire on it.
• Take the angular reading from the graduated scale using the vernier.
• Repeat the observation from the other side and average the readings before calculating the result.

Safety Note

Handle the prism, telescope optics and glass scale plate carefully to avoid scratches or breakage. Do not force the levelling screws or rotating table. Keep the instrument on a stable bench, away from the edge, during use.

Care & Maintenance

• Clean lenses and prism faces only with a soft, lint-free optical cloth.
• Keep the instrument covered when not in use to protect it from dust.
• Store it upright in a dry location, away from vibration and direct sunlight.
• Avoid touching optical surfaces with bare fingers; handle prisms by their edges.

Why Choose LabEquip

LabEquip supplies physics, chemistry and biology lab equipment, STEM kits and science models for schools, colleges and institutional laboratories, with honest specifications and responsive sales support. For related optics apparatus, see our Rectangular Optical Grade Glass Slab, Semi Circular Glass Slab, and Ray Optics Kit, or visit the LabEquip homepage to browse our full catalogue.

Frequently Asked Questions

What is the Optical Spectrometer used for?

It is used to measure angular deviation, prism angle and refractive index by aligning a collimator, prism table and viewing telescope on a graduated circular scale.

What is the angular range and least count of the scale?

These figures are not stated in this listing. Please confirm the exact angular range and least count with our sales team before ordering.

Is a prism included with the spectrometer?

The exact accessories supplied can vary by configuration, so we have not listed a fixed inclusion here. Confirm what is included with our sales team before ordering.

Is this suitable for undergraduate physics labs?

Yes, it is designed for supervised senior-secondary, college and university practicals that need precise, quantitative optics measurements.

How should I clean and store the spectrometer?

Clean optical surfaces only with a soft, lint-free cloth, keep the instrument covered and upright in a dry location, and avoid touching lenses or prism faces with bare fingers.

Last Updated: September 2026