Описание: Лазерные принадлежности High Efficiency Transmission Grating: Center Wavelength 800 nm, Groove Density 1851.85 lines/mm, Angle of Incidence 47.7 deg, Polarization S (E field parallel to grooves), Efficiency 94% min. Size 15.8 x 10 x 0.675 mm (groove length 10 mm), Clear ape