Meta platforms technologies, llc (20240345388). OUTPUT COUPLER FOR DEPTH OF FIELD CONFIGURATION IN AN EYE TRACKING SYSTEM simplified abstract

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OUTPUT COUPLER FOR DEPTH OF FIELD CONFIGURATION IN AN EYE TRACKING SYSTEM

Organization Name

meta platforms technologies, llc

Inventor(s)

Yang Yang of Redmond WA (US)

Mohamed Tarek Ahmed El-haddad of Redmond WA (US)

Junjie Hu of Bellevue WA (US)

OUTPUT COUPLER FOR DEPTH OF FIELD CONFIGURATION IN AN EYE TRACKING SYSTEM - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240345388 titled 'OUTPUT COUPLER FOR DEPTH OF FIELD CONFIGURATION IN AN EYE TRACKING SYSTEM

The waveguide system in a lens assembly of a head-mounted device supports eye tracking operations. The system includes an input coupler, an output coupler, and a waveguide.

  • The input coupler in-couples light into the waveguide.
  • The output coupler out-couples the light from the waveguide.
  • The output coupler has at least one trapezoidal portion to condition the depth of field.
  • The output coupler may have dual trapezoidal portions shaped like a bowtie or hourglass to configure the depth of field along a specific direction.
  • The bowtie shape of the output coupler provides uniform in-coupling of light from the input coupler at various angles.

Potential Applications: - Eye tracking technology in virtual reality headsets - Augmented reality devices for precise visual overlays - Medical devices for precise imaging and diagnostics

Problems Solved: - Ensures accurate and consistent eye tracking data - Improves the depth of field for better visual performance - Enhances the overall user experience in head-mounted devices

Benefits: - Enhanced eye tracking accuracy - Improved visual performance - Better user experience in immersive technologies

Commercial Applications: Title: Advanced Eye Tracking Technology for Head-Mounted Devices This technology can be utilized in the development of next-generation virtual reality headsets, augmented reality glasses, and medical imaging devices. The market implications include improved user engagement, enhanced diagnostic capabilities, and increased demand for high-tech wearable devices.

Questions about the Waveguide System: 1. How does the waveguide system improve eye tracking accuracy in head-mounted devices? 2. What are the potential commercial applications of this technology in the consumer electronics industry?

Frequently Updated Research: Ongoing research focuses on optimizing the design of the waveguide system to further enhance depth of field and light coupling efficiency in head-mounted devices. Stay updated on the latest advancements in eye tracking technology for immersive experiences.


Original Abstract Submitted

a waveguide system in a lens assembly of a head mounted device may be used to support eye tracking operations. the waveguide system includes a waveguide, an input coupler, and an output coupler. the input coupler is disposed in the waveguide, and the input coupler is configured to in-couple light into the waveguide. the output coupler is disposed in the waveguide and is configured to out-couple the light from the waveguide. the output coupler includes at least one trapezoidal portion to condition the depth of field for the waveguide system. the output coupler may have two (dual) trapezoidal portions that are similar to the shape of a bowtie or hourglass to configure the depth of field of the waveguide system along a particular direction (e.g., the y-axis). the bowtie shape of the output coupler provides uniform in-coupling of light from the input coupler along a range of angles.