Diffraction gratings

Product Code : SCL-OS-12839

Diffraction Gratings by Educational Instrument are high-fidelity optics accessories for quantitative spectral analysis and wavelength determination. The product is listed with 100, 300, and 600 lines/mm grating density options, allowing teachers to demonstrate how grating pitch affects diffraction angle and spectral separation.

The gratings are supplied in a standard 50 mm × 50 mm slide format for integration with spectrometers, optical benches, and universal 50 mm optical rail holders. The optical-grade polymer emulsion on glass or acrylic carrier supports clear diffraction pattern observation in laboratory teaching environments.

Key Features

Available in 100, 300, and 600 lines/mm grating density options.

Standard 50 mm × 50 mm slide format for optical bench compatibility.

Designed for wavelength determination and visible spectrum observation.

Supports comparison of grating density, pitch, diffraction angle, and spectral order.

High-contrast line definition helps students observe first and second-order maxima.

Suitable for senior school, college, university, TVET, and STEM physics laboratories.

Compatible with standard spectrometers and universal 50 mm optical rail holders.

Technical Specifications

What's Included in the Kit

Diffraction Grating, 100 lines/mm [confirm if supplied individually or as option]

Diffraction Grating, 300 lines/mm [confirm if supplied individually or as option]

Diffraction Grating, 600 lines/mm [confirm if supplied individually or as option]

Protective slide frame, 50 mm × 50 mm format

User manual or technical sheet [confirm if supplied]

Applications / Uses

Determining the wavelength of monochromatic light.

Observing first-order and second-order diffraction maxima.

Demonstrating dispersion of light into spectral components.

Comparing diffraction angle with different grating densities.

Using with spectrometers for quantitative wave-optics experiments.

Teaching grating equation, spectral order, angular measurement, and light interference.

How to Use the Diffraction Gratings

Place the spectrometer, optical bench, or rail setup on a stable laboratory table.

Mount the selected diffraction grating in a suitable 50 mm optical holder.

Align the light source so the incident beam falls normally on the grating surface.

Place a screen or use a spectrometer telescope to observe the diffracted spectrum.

Measure the diffraction angle for the required spectral order.

Repeat the observation with 100, 300, or 600 lines/mm gratings to compare results.

Use the grating equation to calculate wavelength or verify theoretical values.

Safety note: If a laser source is used, never look directly into the beam. Handle the grating by the frame or edge to avoid damaging the optical surface.

Care & Maintenance

Store the diffraction gratings in a dry, dust-free optics storage case.

Do not touch the ruled or coated optical surface with fingers.

Clean only with approved optics cleaning materials or a soft dry cloth for the frame.

Keep away from moisture, heat, chemical vapours, and abrasive contact.

Why Choose Educational Instrument

Educational Instrument supplies scientific laboratory instruments, lab experiment setups, science kits, mathematics kits, didactic models, and STEM models for academic use. The company provides physics teaching apparatus for optics, lasers, mechanics, heat, electronics, magnetism, and classroom demonstrations. Buyers can explore related products through Physics Lab Equipment, Optical Sectional Apparatus, Diffraction Gratings, and Demonstration Diffraction Grating Slide.

Frequently Asked Questions

What are diffraction gratings used for?

Diffraction gratings are used to separate light into spectra and determine wavelengths in physics optics experiments. They are commonly used with spectrometers and optical benches.

What grating densities are available?

The listed grating density options are 100, 300, and 600 lines/mm. These options help students compare diffraction angle and spectral separation.

Are these gratings suitable for school laboratories?

Yes. They are suitable for senior secondary, college, university, TVET, and STEM laboratories where wave optics and spectral analysis are taught.

Can diffraction gratings be used with a laser?

Yes. Diffraction gratings can be used with a suitable laser source for observing diffraction maxima, provided laser safety rules are strictly followed.

What is the size of the diffraction grating slide?

The listed frame size is 50 mm × 50 mm, which is suitable for standard optical bench and optical rail holder setups.

What material is used in these diffraction gratings?

The manufacturer lists optical-grade polymer emulsion on a glass or acrylic carrier, with high-transparency photographic film or glass substrate.

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