Plane Ruled Diffraction Grating, 600 g/mm, 250 nm, 4.3°

Plane Ruled Diffraction Grating, 600 grooves per mm, 250 nm nominal blaze wavelength (1st order Littrow), 4.3° nominal blaze angle

Plane Ruled Diffraction Grating, 600 grooves per mm, 250 nm nominal blaze wavelength (1st order Littrow), 4.3° nominal blaze angle