18063913. REFLECTOR ORIENTATION OF GEOMETRICAL AND MIXED WAVEGUIDE FOR REDUCING GRATING CONSPICUITY simplified abstract (META PLATFORMS TECHNOLOGIES, LLC)
Contents
REFLECTOR ORIENTATION OF GEOMETRICAL AND MIXED WAVEGUIDE FOR REDUCING GRATING CONSPICUITY
Organization Name
META PLATFORMS TECHNOLOGIES, LLC
Inventor(s)
Wai Sze Tiffany Lam of Lynnwood WA (US)
Wanli Chi of Sammamish WA (US)
Dominic Meiser of Bothell WA (US)
REFLECTOR ORIENTATION OF GEOMETRICAL AND MIXED WAVEGUIDE FOR REDUCING GRATING CONSPICUITY - A simplified explanation of the abstract
This abstract first appeared for US patent application 18063913 titled 'REFLECTOR ORIENTATION OF GEOMETRICAL AND MIXED WAVEGUIDE FOR REDUCING GRATING CONSPICUITY
The abstract describes a waveguide display system with an input coupler, first and second pupil expanders, and transflective mirrors to deflect display light towards an eyebox inconspicuously.
- Waveguide display system with input coupler, first and second pupil expanders
- Transflective mirrors used to deflect display light towards eyebox
- Mirrors are tilted within the waveguide to be inconspicuous from oblique angles
Potential Applications: - Augmented reality devices - Heads-up displays in vehicles - Military applications for enhanced vision systems
Problems Solved: - Minimizing the visibility of optical components in the waveguide - Improving the efficiency of light transmission in the display system
Benefits: - Enhanced user experience with clear and immersive display - Compact design for portable devices - Improved visibility in various lighting conditions
Commercial Applications: - Consumer electronics industry for smart glasses and AR devices - Automotive industry for heads-up displays - Military and defense sector for advanced vision systems
Prior Art: Prior art related to waveguide display systems and optical components in AR devices.
Frequently Updated Research: Ongoing research on improving the efficiency and visibility of waveguide display systems.
Questions about Waveguide Display System: 1. How does the use of transflective mirrors improve the performance of the waveguide display system? 2. What are the potential challenges in integrating this technology into different applications?
Original Abstract Submitted
A waveguide display system include a waveguide, an input coupler configured to couple display light into the waveguide, a first pupil expander, and a second pupil expander. The first pupil expander is configured to deflect, at a first plurality of locations along a first direction, the display light towards the second pupil expander. The second pupil expander is configured to deflect, at a second plurality of locations along a second direction different from the first direction, the display light from the first pupil expander towards an eyebox of the waveguide display system. At least one of the input coupler, the first pupil expander, or the second pupil expander includes transflective mirrors that are tilted within the waveguide such that the transflective mirrors are inconspicuous when viewed from an oblique angle.
