18597862. Waveguide Display with Staircase Grating Input Coupler simplified abstract (Apple Inc.)
Contents
Waveguide Display with Staircase Grating Input Coupler
Organization Name
Inventor(s)
Choon How Gan of Cheltenham (GB)
Ben-Li Sheu of Sunnyvale CA (US)
Francesco Aieta of Alameda CA (US)
Se Baek Oh of Hillsborough CA (US)
Zhenwen Ding of San Jose CA (US)
Waveguide Display with Staircase Grating Input Coupler - A simplified explanation of the abstract
This abstract first appeared for US patent application 18597862 titled 'Waveguide Display with Staircase Grating Input Coupler
The abstract describes an electronic device with a waveguide, an input coupler for light input, and an optical coupler for light output. A medium is layered onto the waveguide, with the input coupler featuring a non-binary staircase surface relief grating (SRG) and the optical coupler having a binary SRG in the medium. The input coupler is designed to maximize in-coupling efficiency, ensuring efficient light delivery to an eye box.
- The electronic device includes a waveguide, input coupler, and optical coupler.
- A medium is layered onto the waveguide.
- The input coupler features a non-binary staircase SRG.
- The optical coupler includes a binary SRG in the medium.
- The input coupler is designed to maximize in-coupling efficiency for effective light delivery to an eye box.
Potential Applications: - Augmented reality devices - Virtual reality headsets - Optical communication systems
Problems Solved: - Maximizing in-coupling efficiency - Enhancing light delivery to an eye box
Benefits: - Improved optical performance - Enhanced user experience in AR/VR applications
Commercial Applications: Title: Enhanced Optical Coupling Technology for AR/VR Devices This technology can be utilized in the development of next-generation AR/VR devices, improving optical performance and user experience. It has implications for the consumer electronics market and the telecommunications industry.
Questions about Enhanced Optical Coupling Technology: 1. How does the non-binary staircase SRG in the input coupler enhance in-coupling efficiency? 2. What are the potential commercial applications of this technology in the AR/VR industry?
Frequently Updated Research: Stay updated on advancements in waveguide technology and optical coupling techniques for AR/VR devices to ensure the latest innovations are incorporated into product development.
Original Abstract Submitted
An electronic device may have a waveguide, an input coupler that couples light into the waveguide, and an optical coupler that couples the light out of the waveguide. A medium may be layered onto the waveguide. The input coupler may include a first surface relief grating (SRG) and the optical coupler may include a second SRG in the medium. The first SRG may be a non-binary staircase SRG having ridges with multiple steps. The second SRG may be a binary SRG having troughs that extend to the height of the lowest steps of the first SRG. A reflective layer may fill the first SRG. Forming the input coupler using a staircase SRG may serve to maximize the in-coupling efficiency of the input coupler, thereby maximizing the efficiency with which the light is provided to an eye box.
