Meta platforms technologies, llc (20240179284). DUAL-PATH DISPARITY SENSOR simplified abstract
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 20240179284 titled 'DUAL-PATH DISPARITY SENSOR
Simplified Explanation
The patent application describes a waveguide display system that utilizes a set of gratings to guide light along two different paths within the waveguide, allowing for the separation of full-color spectrum light and shorter wavelength light.
- The waveguide display system includes:
- A waveguide transparent to visible light
- A projector projecting disparity test light onto the waveguide
- An input coupler coupling the test light into the waveguide
- A set of gratings on the waveguide guiding the light along two paths and out of the waveguide at the periphery
- The gratings include two disparity gratings with different grating vectors or a two-dimensional grating with two different grating vectors
- The longer primary path carries the full-color spectrum light, while the shorter secondary path carries only shorter wavelength light
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- Potential Applications
- Augmented reality displays
- Heads-up displays in vehicles
- Medical imaging devices
- Problems Solved
- Separation of different wavelengths of light for improved image quality
- Enhanced color accuracy in display systems
- Benefits
- Improved image clarity and color accuracy
- Enhanced user experience in viewing digital content
- Potential for more compact and efficient display systems
- Potential Commercial Applications
- Optimizing Light Separation in Waveguide Displays
- Potential Commercial Applications
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- Possible Prior Art
No known prior art at this time.
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- Unanswered Questions
- How does this technology compare to existing methods of light separation in waveguide displays?
The article does not provide a direct comparison with existing methods, making it unclear how this innovation improves upon current technologies.
- What are the potential limitations or challenges in implementing this waveguide display system in real-world applications?
The article does not address any potential obstacles or drawbacks that may arise when integrating this technology into practical devices.
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.