Diffraction Grating 80 Lines/mm for Spectrophotometer Teaching Experiments

Diffraction Grating 50 Lines Optical Spectrophotometer for Teaching Experiment

Diffraction Grating 80 Lines/mm for Spectrophotometer Teaching Experiments

2mm Thick Diffraction Grating for Classroom Optical Experiments and Demos

Diffraction Grating Optical Teaching Tool for Spectroscopy Experiments

2mm Thick Diffraction Grating for Spectroscopy and Optical Demonstration

Diffraction Grating with Various Line Counts for Spectroscopy Experiments

Spectroscopy Experiment Tool with 2mm Transmission Diffraction Grating