Many developers of AR devices use Diffractive Optical Elements (DOE) on their waveguides to guide the tranmission of an image from the projector to the viewer's eye. Production of such diffractive structures in high volumes presents many challenges in terms of resolution, accuracy, fidelity, yield and cost. Eulitha's breakthrough PHABLE technology brings the proven advantages of photolithography to the AR/VR field, enabling highest quality waveguide production at low cost.