Tech Center

(1) Material preparation Select the right material: according to the design requirements of optical components, choose the right glass, ceramic or metal and other materials. Pretreatment: The necessary pretreatment of the material, such as cleaning, removing the oxide layer, etc., to ensure the cleanliness and processing performance of the material surface. 

(2) Rough grinding purpose: to make the surface roughness and shape of the material initially meet the processing requirements. Methods: The spherical forming method was used to rough the material with diamond cutting tools. In this step, a large amount of material is removed, which is mainly used to adjust the shape of the material and remove a large amount of surplus. 

(3) Fine grinding purpose: further refine the surface of the material, improve the surface roughness and shape accuracy. Methods: Using a finer diamond disk to grind several times, the surface roughness of the material was gradually reduced. In this step, the machining pressure and grinding parameters need to be precisely controlled according to the material characteristics and processing requirements. 

(4) Polishing purpose: to achieve the final finish and shape accuracy requirements. Methods: The surface of the material was polished with polyurethane grinding disc and polishing powder. In the polishing process, it is necessary to maintain uniform contact between the polishing tool and the surface of the material to avoid local overthrowing or underthrowing phenomenon. 

(5) Centering and edging purpose: to eliminate the deviation between the optical axis and the positioning axis, so that the radial dimension of the side cylinder of the optical element can meet the assembly requirements. Methods: The centering and edging operations were carried out on the optical centering and edging machine. In this step, the amount of grinding and machining accuracy need to be precisely controlled to ensure the concentricity and cylindricity of the optical element. 

(6) Coating purpose: to deposit a layer or multiple layers of film on the surface of the optical element to improve its optical properties (such as anti-reflection, reflection, light filtering, etc.). Method: The optical element is placed in a vacuum chamber, and the coating material is heated to evaporate and deposit on the surface of the element. During the coating process, parameters such as vacuum degree, evaporation rate and temperature of the coating material need to be controlled to ensure the quality and uniformity of the coating. 

(7) Cleaning and inspection cleaning: the processed optical components are thoroughly cleaned to remove oil, iron filings and other impurities on the surface to ensure its finish and transparency. Inspection: Use microscopes, interferometers and other precision measuring instruments to inspect and test the shape, surface roughness and optical properties of optical components to ensure that they meet the design requirements. 

(8) Assembly and debugging assembly: a number of optical components are assembled according to the design requirements to form a complete optical system. Commissioning: Commissioning and optimization of the assembled optical system to ensure optimal performance.