Optical Waveguide for AR Glasses
Diffrar™
Optical Polymer Wafers for AR Glasses
Applications detail
Applications
Characteristics
Basic information
Diffrar™ is an optical grade polymer wafer that enhances the next generation of AR glasses.
Diffrar™ ’s anticipated application is for optical waveguides.
We believe that Diffrar™ can contribute to improving the safety (high impact resistance) and significantly reducing the weight of AR glasses.
Optical characteristics
Possessing outstanding optical properties, including a high refractive index of 1.67 or higher and extreme flatness, Diffrar™ optical polymer wafers offer wearers of AR glasses a wide Field Of View (FOV).
Properties & Size lineup
The product lineup features wafers ranging from 3 inches to 8 inches in size, providing a variety of options for module manufacturing processes for AR and a wide range of devices.
Diffrar™ has highly advantageous properties as a wafer, for example, exceptional flatness (Low TTV, warp, and Surface Roughness).
Physical properties
Diffrar™ is a polymer based wafer with great impact resistance contributing to safer devices and significantly lighter when compared to glass.
Data table
* Data at 350 um thickness, 3 inch wafer
* The data and contents are for reference and are not a guaranteed values
Material Property | Refractive Index [ne] | 1.67 | 1.74 | |
---|---|---|---|---|
Abbe number | 31 | 32 | ||
Birefringence [nm] | ≦ 2 | ≦ 2 | ||
Internal Transmittance t=10mm [%] | 440nm | 98.5 | 91.2 | |
460nm | 99.4 | 97.1 | ||
480nm | 99.7 | 98.5 | ||
Specific Gravity | 1.37 | 1.47 |
Figure Accuracy | Thickness [mm] | 0.3-1.5 |
---|---|---|
Warp [um] | ≦ 25 | |
TTV [um] | ≦ 1 | |
Sa [nm] | ≦ 2 |