Plane Ruled Diffraction Grating, 1200 g/mm, 400 nm, 14°

Plane Ruled Diffraction Grating, 1200 grooves per mm, 400 nm nominal blaze wavelength (1st order Littrow), 14° nominal blaze angle

Plane Ruled Diffraction Grating, 1200 grooves per mm, 400 nm nominal blaze wavelength (1st order Littrow), 14° nominal blaze angle