18263837. DEVICE AND METHOD FOR COMPENSATING EFFECTS OF PANTOSCOPIC TILT OR WRAP/SWEEP TILT ON AN IMAGE PRESENTED ON AN AUGMENTED REALITY OR VIRTUAL REALITY DISPLAY simplified abstract (Snap Inc.)

DEVICE AND METHOD FOR COMPENSATING EFFECTS OF PANTOSCOPIC TILT OR WRAP/SWEEP TILT ON AN IMAGE PRESENTED ON AN AUGMENTED REALITY OR VIRTUAL REALITY DISPLAY

Organization Name

Snap Inc.

Inventor(s)

Mohmed Salim Valera of Sutton Coldfield (GB)

David Louis Maxime Poussin of London (GB)

DEVICE AND METHOD FOR COMPENSATING EFFECTS OF PANTOSCOPIC TILT OR WRAP/SWEEP TILT ON AN IMAGE PRESENTED ON AN AUGMENTED REALITY OR VIRTUAL REALITY DISPLAY - A simplified explanation of the abstract

This abstract first appeared for US patent application 18263837 titled 'DEVICE AND METHOD FOR COMPENSATING EFFECTS OF PANTOSCOPIC TILT OR WRAP/SWEEP TILT ON AN IMAGE PRESENTED ON AN AUGMENTED REALITY OR VIRTUAL REALITY DISPLAY

Simplified Explanation

The patent application describes an optical device for use in augmented reality or virtual reality displays, which includes a waveguide and diffractive optical elements positioned within the waveguide to manipulate light for display to the viewer.

• The device includes an input diffractive optical element positioned in or on the waveguide to receive light from a projector and couple it into the waveguide using total internal reflection.
• The device also includes first and second diffractive optical elements with different grating vectors in the plane of the waveguide, configured to manipulate the light within the waveguide and direct it towards the viewer.

Potential Applications

This technology could be used in augmented reality headsets, virtual reality goggles, and other display devices to enhance the user experience with high-quality, immersive visuals.

Problems Solved

This technology solves the problem of efficiently manipulating light within a waveguide to create clear, high-resolution images for augmented reality and virtual reality displays.

Benefits

The benefits of this technology include improved image quality, enhanced user experience, and potentially smaller and lighter display devices due to the efficient manipulation of light within the waveguide.

Potential Commercial Applications

One potential commercial application of this technology could be in the development of advanced augmented reality glasses for gaming, education, training, and other interactive experiences.

Possible Prior Art

One possible prior art for this technology could be similar patents related to diffractive optical elements and waveguide displays in the field of augmented reality and virtual reality technology.

How does this technology compare to existing waveguide display systems in terms of image quality and efficiency?

This article does not provide a direct comparison between this technology and existing waveguide display systems in terms of image quality and efficiency. Further research and testing would be needed to determine the specific advantages and limitations of this technology compared to existing systems.

What are the potential challenges in mass-producing and integrating this technology into commercial augmented reality and virtual reality devices?

This article does not address the potential challenges in mass-producing and integrating this technology into commercial augmented reality and virtual reality devices. Factors such as cost, scalability, compatibility with existing technologies, and regulatory requirements could pose challenges that need to be explored further.

Original Abstract Submitted

An optical device is disclosed for use in an augmented reality or virtual reality display, comprising a waveguide () and an input diffractive optical element (H; H) positioned in or on the waveguide, configured to receive light from a projector and couple it into the waveguide so that it is captured within the waveguide under total internal reflection. The input diffractive optical element has an input grating vector (G; G) in the plane of the waveguide. The device includes a first diffractive optical element (H; H) and a second diffractive optical element (H; H) having first and second grating vectors (G, G; GV, GV) respectively in the plane of the waveguide, wherein the first diffractive optical element is configured to receive light from the input diffractive optical element and to couple it towards the second diffractive optical element, and wherein the second diffractive optical element is configured to receive light from the first diffractive optical element and to couple it out of the waveguide towards a viewer. The input grating vector, the first grating vector and the second grating vector have different respective magnitudes, and wherein a vector addition of the input grating vector, the first grating vector and the second grating vector sums to zero.