Rainbow Symphony Diffraction Grating Glasses - Linear 500 Line/millimeters, Package of 25

Feature

Makes the study of light and color fun and unforgettable
Features a highly efficient 500 lines per millimeter
Recommended for use with our Power Supply and Spectrum Gas Tubes
Single axis holographic diffraction grating lenses separate light from any source

Description

DIFFRACTION GRATING GLASSES - Linear 500 line/mm Diffraction Grating Glasses - Make the study of light and color fun and easy. Highly efficient, 500 lines per millimeter, single axis holographic diffraction grating lenses separate light from any source into its spectral components for study and analysis. Recommended for use with our Power Supply and Spectrum Gas Tubes.