Snap Inc. (20240264444). WAVEGUIDE AND DIFFRACTION GRATING FOR AUGMENTED REALITY OR VIRTUAL REALITY DISPLAY simplified abstract

WAVEGUIDE AND DIFFRACTION GRATING FOR AUGMENTED REALITY OR VIRTUAL REALITY DISPLAY

Organization Name

Snap Inc.

Inventor(s)

Alexandra Crai of Abingdon (GB)

Ciaran Phelan of Wallingford (GB)

Mohmed Salim Ibrahim Valera of Sutton Coldfield (GB)

David Nicholas Crosby of Oxford (GB)

WAVEGUIDE AND DIFFRACTION GRATING FOR AUGMENTED REALITY OR VIRTUAL REALITY DISPLAY - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240264444 titled 'WAVEGUIDE AND DIFFRACTION GRATING FOR AUGMENTED REALITY OR VIRTUAL REALITY DISPLAY

Simplified Explanation: The patent application describes a waveguide for virtual reality (VR) or augmented reality (AR) devices. The waveguide is designed to efficiently transmit light through total internal reflection and reduce rainbow artifacts.

• Key Features and Innovation:

   - Waveguide for VR/AR devices
   - Input region for light coupling
   - Output region with optical structures
   - Different diffraction zones to reduce rainbow artifacts

• Potential Applications:

   - VR headsets
   - AR glasses
   - Heads-up displays

• Problems Solved:

   - Rainbow artifacts in VR/AR displays
   - Efficient light transmission
   - Enhanced image quality

• Benefits:

   - Improved visual experience
   - Reduced eye strain
   - Enhanced immersion in virtual environments

• Commercial Applications:

   - Consumer electronics
   - Entertainment industry
   - Medical simulations

• Prior Art:

   - Prior research on waveguides for VR/AR devices
   - Studies on diffraction efficiency in optical systems

• Frequently Updated Research:

   - Advancements in waveguide technology
   - Research on reducing optical artifacts in displays

Questions about Waveguide for VR/AR Devices: 1. How does the waveguide reduce rainbow artifacts in VR/AR displays? 2. What are the potential commercial applications of this technology?

1. A relevant generic question not answered by the article, with a detailed answer: How does the diffraction efficiency of the output region contribute to reducing rainbow artifacts in VR/AR devices? The diffraction efficiency of the output region ensures that light is dispersed evenly, reducing the occurrence of rainbow artifacts that can distort the image quality in VR/AR displays.

2. Another relevant generic question, with a detailed answer: What are the key advantages of using a waveguide in VR/AR devices compared to traditional display technologies? Waveguides offer a more compact and lightweight solution for displaying images in VR/AR devices, providing a more immersive and comfortable experience for users.

Original Abstract Submitted

a waveguide for use in a virtual reality, vr, or augmented reality, ar, device, is disclosed. the waveguide comprising an input region configured to couple light into the waveguide so that it propagates under total internal reflection (tir) within the waveguide, and an output region comprising optical structures configured to receive image bearing light from the input region. the output region comprises a plurality of zones having different diffraction to each other, the plurality of zones comprising diffraction efficiencies so as to reduce rainbow artefacts.