A multi-piece combined filter is the core component of cameras, video cameras, and CCTV optical systems. It is generally composed of one or more pieces of optical grade crystal, wave plate and blue glass. Optical grade crystals can effectively filter out the moiré fringes caused by high-frequency light waves, and the blue glass can correct the chromatic aberration and better restore the true color of the image.

A device integrating optical filters and small motors is a core component in the optical system of surveillance cameras and sports cameras. It is mainly composed of infrared cut filter, antireflection film, injection molded parts, hardware parts, and small motors. The two filters can be automatically switched according to day and night needs to achieve day and night high-definition imaging needs.

This product achieves surface roughness (Ra) <0.5nm, TTV <1μm and other surface requirements through high-precision cutting, grinding, polishing, and coating of high-refractive-index materials;

1. Blue glass filter for mobile phones: it has strong absorption capacity in red light and infrared light, and at the same time, the half-wave change is small when it is incident at a large angle; Using high-precision optical coating technology, through the optical film cut off and blue glass to absorb infrared light, it can effectively remove the glare,ghost and improve the color cast problems during optical imaging; Mainly used in: high-pixel mobile phone camera. 2. Micro prism: This product is used for periscope camera modules or light source emission modules to achieve a specific angle change of light propagation according to customer needs, and solve the long-focus optical system long-focus optical design requirements and the precious space structure of consumer electronics products Contradiction, to achieve the unity of performance requirements and size control. Technical characteristics and advantages: It has the advantages of cold processing, coating, printing and other mass production; Product surface accuracy: PV<0.1λ; Coating and printing consistency have reached the advanced level in the industry. Product application: mobile phone camera