Possible Applications

The future of augmented reality

  • A Bragg polarization grating (BPG) is an optically “thick” grating that follows (2-4um)
  • Bragg PGs are analogous to Volume Phase Holograms and Volume Bragg Gratings
Image of BPG equation

How It Works

BPGBPGs are a special case of polarization gratings that operate in the Bragg regime or Q>1. It has several unique properties that make it ideal for several applications including augmented and virtual reality. When operating in the Bragg regime, a polarization grating will diffract only a single polarization (+1st order) and leave the orthogonal polarization un-diffracted. With a circularly polarized input, the efficiency can reach up to 99%. For very wide field of views, the efficiency can be as high as 90%.

bragg polarization

White Papers about BPGs


Technology Comparison

Traditional Grating

  • 20 Degree Field of View
  • 40% Grating Efficiency
  • > 100um Thickness

ImagineOptix BPG

  • 60 Degree Field of View
  • 99% Grating Efficiency
  • 2um Thickness

Click here for Technical Details including Specification and Benefits of our BPGs.


We make optics thinner, lighter, and more efficient than anyone else. How can our optics help you?

Fill out the form below to see how our expertise can help with your next project.

  • This field is for validation purposes and should be left unchanged.