18519968. DUAL-PATH DISPARITY SENSOR simplified abstract (Meta Platforms Technologies, LLC)

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DUAL-PATH DISPARITY SENSOR

Organization Name

Meta Platforms Technologies, LLC

Inventor(s)

Michiel Koen Callens of Mountain View CA (US)

DUAL-PATH DISPARITY SENSOR - A simplified explanation of the abstract

This abstract first appeared for US patent application 18519968 titled 'DUAL-PATH DISPARITY SENSOR

Simplified Explanation

The waveguide display system described in the patent application utilizes a waveguide transparent to visible light, a projector, an input coupler, and a set of gratings to guide disparity test light along two different paths within the waveguide. The system includes two disparity gratings with different grating vectors or a two-dimensional grating with two different grating vectors. The disparity test light on the longer primary path contains the full color spectrum, while the light on the shorter secondary path includes only shorter wavelengths.

  • Waveguide display system with unique set of gratings
  • Utilizes two different paths for guiding disparity test light
  • Includes disparity gratings with different grating vectors
  • Allows full color spectrum on longer path and shorter wavelengths on shorter path

Potential Applications

The technology could be applied in:

  • Augmented reality displays
  • Head-up displays in vehicles
  • Medical imaging devices

Problems Solved

The system addresses issues related to:

  • Displaying full color spectrum in waveguide systems
  • Guiding light along different paths within a waveguide
  • Enhancing the visual experience for users

Benefits

The benefits of this technology include:

  • Improved color accuracy in display systems
  • Enhanced image quality and clarity
  • Versatile applications in various industries

Potential Commercial Applications

  • Consumer electronics industry
  • Automotive industry for HUD displays
  • Healthcare industry for medical imaging devices

Possible Prior Art

One possible prior art could be the use of waveguides in augmented reality displays to guide light and create virtual images.

Unanswered Questions

How does the system handle potential interference between the two paths of light propagation?

The patent application does not provide details on how the system mitigates interference between the two paths of light propagation. Further information on this aspect would be beneficial for understanding the system's performance.

What are the specific technical requirements for integrating this system into existing display technologies?

The patent application does not elaborate on the technical specifications or compatibility of the system with current display technologies. Additional information on integration requirements would be essential for potential adopters of the technology.


Original Abstract Submitted

A waveguide display system includes a waveguide transparent to visible light, a projector configured to project disparity test light onto the waveguide, an input coupler configured to couple the disparity test light into the waveguide, and a set of gratings on the waveguide. The set of gratings is configured to guide the disparity test light to propagate along two different paths in the waveguide, and couple the disparity test light propagating along the two different paths out of the waveguide at a peripheral region of the waveguide. The set of gratings includes two disparity gratings having different grating vectors or a two-dimensional grating having two different grating vectors. The disparity test light on a longer primary path includes the full color spectrum of the disparity test light, while the disparity test light on a shorter secondary path includes only disparity test light having shorter wavelengths.