IRCF

The manufacturing process for image sensor filters, 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, and reducing residual stress and crack on the thin films to ensure reliability and yield of optical devices.
In particular, as for the image sensor filters, these are strictly managed the inflow of fine dust from external  in the manufacturing stage, also have automated high speed AVI(automatic visual inspection) system that can strictly inspect fine dust and defect 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.

▶ Applicable Products

▶ Features

Specialized Printing

Technology

Detecting fine dust and defect

Manufacturing Capacity

▶ Product characteristics

Structure

Film

IR Coating

item

Spec

0.11mm

Cut-On ≤ 3nm

Cut-Off ≤ 5nm

OD Max = 3.8

Very Good

Flare

Strength

Thickness

Color Shift

Characteristics

T50% ≤ 3nm

T10% ≤ 5nm

Tavg ≥ 88% @ 481-560nm

Visible Pass Area T(%)

Cut-On Shift

Cut-Off Shift

Tmax ≤ 0.2% @ 851~1050nm

NIR Stop Area T(%)

.

.

■

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.

▶ Applicable Products

▶ Features

Specialized Printing Technology

Detecting fine dust and defect

Manufacturing Capacity

▶ Product characteristics

Structure

Blue Glass

IR Coating

item

Spec

0.1mm & 0.21mm & 0.300mm

Cut-On ≤ 10nm

Cut-Off ≤ 25nm

OD Max = 3.8

Good

Flare

Strength

Thickness

Color Shift

Characteristics

T50% < 10nm

T10% < 25nm

Tavg > 90% @ 430-560nm

Tmax<0.01% @ 800~1,100nm (OD>4)

Pass Area T(%)

Stop Area T(%)

Cut-On Shift

Cut-Off Shift

.

.

■

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.

▶ Applicable Products

▶ Features

Specialized Printing Technology

Detecting fine dust and defect

Manufacturing Capacity

▶ Product characteristics

Structure

item

Spec

Organic Layer

IR Coating

Glass

0.1mm & 0.21mm

Cut-On ≤ 10nm

Cut-Off ≤ 5nm

OD Max = 3.5

Good

Flare

Strength

Thickness

Color Shift

Characteristics

T50% < 10nm

T10% < 10nm

Tavg ≥ 88% @ 476-560nm

Pass Area T(%)

Cut-On Shift

Cut-Off Shift

Stop Area T(%)

Tmax ≤ 0.1% @ 851~950nm (OD>3)

.

.

.