A- Star Photonics Inc., specializes in Projection Display Optical Elements, Crystals Material, Precision Optics & Optical Communication Components, is a high-tech enterprise integrated R&D, manufacturing and selling. Business Type: Manufacturer, Trading Company Main Products: F-theta Scan Lens,Beam Expanders,Focusing Lens,Mirror,Window beta-BaB2O4(BBO) Beta-BaB2O4 is a nonlinear optical crystal which combines a number of unique features. These features […]