The manufacturing process for image sensor filters, and IR cut-off filters consists of deposition, printing, dicing and inspection processes. Filters are depositioned repeatedly with high refractive index and low refractive index material, reducing residual stress and crack on the thin films to ensure reliability and yield of optical devices. In particular, the image sensor filters strictly manage the inflow of fine dust from outside in the manufacturing stage, and also have an automated high-speed AVI (automatic visual inspection) system that can strictly inspect fine dust and defects smaller than 10μm.

Film Filter

Film filters, which succeeded in mass-producing black masking film filters for the first time in the world, have the world's largest mass-production capacity and their demand is continuously increasing due to the popularization of multiple cameras in smartphones.

Detecting Fine Dust and Defect

▶ Product Characteristics

Item

Specification

Visible Pass Area(%)

NIR Stop Area(%)

Blue Filter

Optronec has the world's largest mass-production capability of blue filters and its demand is continuously growing up due to the popularization

of multi-camera smartphones.

Detecting Fine Dust and Defect

▶ Product Characteristics

Item

Specification

Pass Area (%)

Stop Area(%)

Organic White Filter

Organic White Filter (OWF), which utilizes toughened glass and organic layers, is constantly increasing in demand due to the popularization of multi-camera smartphones.

Detecting Fine Dust and Defect

▶ Product Characteristics

Item

Specification

Pass Area (%)

Stop AreaT(%)