proper disign and high quality lens for galvanometer, adapt to different wavelength and aperture size. CO2 SeriesWavelength: 10.6umFilm: The filmReflectivity: 98.8%Under continuous laser power: 500 w/cm2Surface shapeλ/4Spot diameter: 8,10,12,16,20YAG SeriesWavelength: 1.06umFilm: dielectric filmReflectivity: 99%Under continuous laser power: 500 w/cm2Surface shapeλ/4Spot diameter: 8,10,12,16,20532 ...