Our Holographic Diffraction Gratings are highly efficient embossed Holographic Optical Elements (H.O.E.). Diffraction Gratings are used for the direct viewing and analysis of spectra from different gas tubes and other light sources. The quality of the spectrum produced from our gratings is the brightest possible with a minimum of distract
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So have rainbows!
Bought to make rainbow chocolate but so far just put over in each southern facing window and the kids live the rainbows everywhere!