18457158. WAVEGUIDE WITH PRESCRIPTION LENS AND FABRICATION METHOD THEREOF simplified abstract (Meta Platforms Technologies, LLC)

From WikiPatents
Jump to navigation Jump to search

WAVEGUIDE WITH PRESCRIPTION LENS AND FABRICATION METHOD THEREOF

Organization Name

Meta Platforms Technologies, LLC

Inventor(s)

Guido Groet of Issaquah WA (US)

Xuanqi Li of Geleen (NL)

WAVEGUIDE WITH PRESCRIPTION LENS AND FABRICATION METHOD THEREOF - A simplified explanation of the abstract

This abstract first appeared for US patent application 18457158 titled 'WAVEGUIDE WITH PRESCRIPTION LENS AND FABRICATION METHOD THEREOF

Simplified Explanation

The device described in the patent application is a waveguide with out-coupling structures and a medium layer embedded inside the substrate, along with an optical lens printed over the back surface of the substrate.

  • The waveguide guides image light from a light inputting surface to a light outputting surface.
  • The out-coupling structures are located at the back surface or partially inside the substrate.
  • The medium layer has a lower refractive index than the substrate.
  • An optical lens is printed over the back surface of the substrate.

Potential Applications

This technology could be used in augmented reality (AR) devices, head-up displays (HUDs), and other optical systems where compact and efficient light guiding is required.

Problems Solved

This technology solves the problem of efficiently guiding image light within a device while maintaining a compact and lightweight design.

Benefits

The benefits of this technology include improved image quality, reduced size and weight of optical systems, and potentially lower production costs.

Potential Commercial Applications

  • "Innovative Waveguide Technology for AR Devices and HUDs"

Possible Prior Art

There may be prior art related to waveguides with out-coupling structures and embedded medium layers in the field of optical devices and systems.

Unanswered Questions

How does this technology compare to existing waveguide designs in terms of efficiency and performance?

This article does not provide a direct comparison with existing waveguide designs to evaluate the efficiency and performance of this technology.

What are the specific manufacturing processes involved in producing the waveguide device described in the patent application?

The article does not detail the specific manufacturing processes involved in producing the waveguide device, which could be important for understanding the feasibility and scalability of this technology.


Original Abstract Submitted

A device is provided. The device includes a waveguide configured to guide an image light to propagate from a light inputting surface to a light outputting surface. The waveguide includes a substrate having a back surface facing an eye-box region of the device and a front surface opposite to the back surface, a plurality of out-coupling structures disposed at the back surface or at least partially inside the substrate, and a medium layer embedded inside the substrate between the out-coupling structures and the front surface. The medium layer has a refractive index that is lower than the substrate. The device also includes an optical lens printed over the back surface of the substrate.