Diffraction Grating Slides - Linear 1000 line/mm

Excellent product for OPTICS class

These Diffraction Grating slides are perfect for all ages for helping students learn about refraction of light. I use these in my optics labs to view different types of light sources (incandescent, LED, sunlight, LASERs, etc). It's fascinating to see how the wavelengths change. I continue to purchase these items over and over again.