Plane Ruled Diffraction Grating, 600 g/mm, 400 nm, 7°

Plane Ruled Diffraction Grating, 600 grooves per mm, 400 nm nominal blaze wavelength (1st order Littrow), 7° nominal blaze angle

Plane Ruled Diffraction Grating, 600 grooves per mm, 400 nm nominal blaze wavelength (1st order Littrow), 7° nominal blaze angle