WGF™ from Asahi Kasei is the film-based wire grid polarizer. Its Aluminum wire grid structure provides excellent polarization separation across a wide range of wavelengths, including visible (VIS), infrared (IR) and longer wavelengths. In comparison to absorptive polarizers, it also has excellent heat resistance.
In order to bring out the functions and effects of WGF™, quality of processing is an important point.
Asahi Kasei is now providing the materials as fixed components, including initial evaluation samples, so that various customers can try and utilize them properly.
Please feel free to contact Asahi Kasei for your desired size or any other requests.
Asahi Kasei’s Original Technology
- 100 nm pitch Nano-scale wire grid structure
- Continuous roll to roll nano-imprinting process
100 nm pitch Aluminum wire grid. Image Credit: Asahi Kasei Corporation
Features of WGF™
Reflective Polarization Film with Low Heat Absorption
Usable in both transmission and reflection use
Low AOI Dependence
Stable optical performance even at wide AOI such as PBS
Wide Effective Range from VIS to IR or More
The anti-reflection effect when using with IR image sensors has been used in several industrial fields
Excellent Reliability in High Temperature and Humidity Conditions
WGF™ can be used even in an environment where conventional polarizer cannot be used. Widely applied for automotive use & high brightness lighting.
Flexible and Excellent Processability
High workability such as cutting into complicated shapes, bonding to other materials, and even curved surface molding is possible. We can offer WGF™ as various components based on your requests.
Comparison of Heat Resistance
Condition : Sample irradiated for 500 hours with a metal halide lamp
The white line in the sample's center is fluorescent light on the ceiling. The photo was taken to show the presence/non-presence of distortion Image Credit: Asahi Kasei Corporation