Waveguide-based optical systems and methods for augmented reality systems

A technology of augmented reality and optical systems, applied in optics, optical components, light guides, etc., can solve the problems of light guide thickness, etc., and achieve the effect of cheap materials and easy design

Active Publication Date: 2022-06-17
CORNING INC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the lightguides used so far tend to be relatively thick, i.e., they are described by geometrical optics principles rather than by the electromagnetic theory of waveguides

Method used

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  • Waveguide-based optical systems and methods for augmented reality systems
  • Waveguide-based optical systems and methods for augmented reality systems
  • Waveguide-based optical systems and methods for augmented reality systems

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Embodiment Construction

[0028] Reference will now be made in detail to various embodiments of the present disclosure, examples of which are illustrated in the accompanying drawings. Wherever possible, the same or like reference numerals and signs will be used throughout the drawings to refer to the same or like parts. The figures are not necessarily to scale, those skilled in the art will recognize where the figures have been simplified to illustrate key aspects of the present disclosure.

[0029] The claims set forth below are incorporated into and constitute a part of this Detailed Description.

[0030] Cartesian coordinates are shown in some figures for reference and are not intended to be limiting of direction or orientation.

[0031] In the following description, λ refers to the operating wavelength of light, and Δλ refers to the operating wavelength range (ie, spectral band) of light that includes the operating wavelength. Also, θ refers to an angle, and Δθ refers to an angular range, which i...

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Abstract

An augmented reality optical system includes a waveguide structure including a waveguide layer supported by a substrate. The input and output gratings are located within the waveguide layer and are laterally spaced apart. The input light from the display is made incident on the input grating. Input light is coupled into the waveguide layer and travels as a plurality of guided modes in the waveguide layer to the output grating. The input and output gratings provide phase matching such that the guided modes are continuously coupled out of the waveguide layer by the output grating along the output grating to form output light. At the same time, the light from the scene is transmitted vertically through the output grating, so that the output light and the light from the scene are combined by the user's eyes to form an augmented reality image.

Description

[0001] This application claims the benefit of priority under 35 U.S.C. § 119 to US Provisional Application Serial No. 62 / 572,109, filed on October 13, 2017, based on the contents of this provisional application and the contents of which are incorporated by reference in their entirety. into this article. technical field [0002] The present disclosure relates to augmented reality (AR) systems, and more particularly to waveguide-based optical systems and methods for AR systems. Background technique [0003] AR systems are used to add virtual objects to the real visual scene the user is observing. An example type of AR system is wearable and utilizes eyewear in the form of glasses, goggles or helmets worn by the user, and is sometimes referred to as a head mounted display (HMD) system. AR systems typically include an optical system configured to allow viewing of an object or scene while also adding augmented objects to the actual object or directly viewed scene. [0004] AR s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B27/01G02B27/00
CPCG02B27/0081G02B27/0172G02B6/12007G02B6/1221G02B2027/0178G06V20/20
Inventor J·T·基奇M·F·克罗尔
Owner CORNING INC
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