Google llc (20240134198). METHODS AND APPARATUSES FOR IMPLEMENTING VARIED OPTICAL GRATING GEOMETRIES IN AN AUGMENTED REALITY DISPLAY simplified abstract

METHODS AND APPARATUSES FOR IMPLEMENTING VARIED OPTICAL GRATING GEOMETRIES IN AN AUGMENTED REALITY DISPLAY

Organization Name

google llc

Inventor(s)

Wei Jin of Saratoga CA (US)

Joseph Daniel Lowney of Tucson AZ (US)

Lu Tian of Palo Alto CA (US)

Qinglan Huang of Mountain View CA (US)

Thomas Mercier of Weston FL (US)

METHODS AND APPARATUSES FOR IMPLEMENTING VARIED OPTICAL GRATING GEOMETRIES IN AN AUGMENTED REALITY DISPLAY - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240134198 titled 'METHODS AND APPARATUSES FOR IMPLEMENTING VARIED OPTICAL GRATING GEOMETRIES IN AN AUGMENTED REALITY DISPLAY

Simplified Explanation

An augmented-reality (AR) eyewear display patent application abstract describes the use of an optical waveguide with multi-layered optical gratings to improve display quality and efficiency.

• The optical gratings in the waveguide have varying depths, slope angles, lengths, and/or widths to optimize optical characteristics for high resolution, contrast, display uniformity, input coupling efficiency, and output coupling efficiency.
• Different configurations of two-dimensional or three-dimensional gratings in the waveguide enable lower-power AR eyewear displays to achieve the same display quality as higher-power conventional displays.

Potential Applications

This technology could be applied in various industries such as gaming, healthcare, education, and engineering for immersive AR experiences.

Problems Solved

This technology solves the problem of optimizing optical characteristics in AR eyewear displays to enhance display quality while reducing power consumption.

Benefits

The benefits of this technology include improved display resolution, contrast, uniformity, and efficiency in AR eyewear displays, leading to a better user experience.

Potential Commercial Applications

Commercial applications of this technology could include AR glasses for gaming, medical training simulations, educational tools, and industrial maintenance applications.

Possible Prior Art

Prior art in the field of AR eyewear displays may include patents related to waveguide technologies, optical gratings, and display optimization techniques.

How does this technology impact the design and manufacturing process of AR eyewear displays?

This technology could potentially streamline the design process by providing a more efficient way to optimize display quality, leading to cost savings and faster time to market for AR eyewear products.

What are the potential limitations or challenges in implementing this technology in mass-produced AR eyewear displays?

Some potential challenges could include scalability of manufacturing processes, cost-effectiveness of incorporating complex optical gratings, and compatibility with existing AR display technologies. Further research and development may be needed to address these challenges.

Original Abstract Submitted

an augmented-reality (ar) eyewear display utilizes an optical waveguide having multi-layered optical gratings in a repeating arrangement. the optical gratings include varying depths, slope angles, lengths, and/or widths in order to tune the gratings to provide an improved ar eyewear display. by using the different configurations of two-dimensional or three-dimensional gratings disclosed herein in a waveguide of an ar eyewear display, optical characteristics of the waveguide are optimized to provide, e.g., high resolution and/or contrast, high display uniformity, high input coupling efficiency, and/or high output coupling efficiency. accordingly, in some embodiments, aspects of the present disclosure enable lower-power ar eyewear displays to produce the same quality of display of a higher-power conventional ar eyewear display waveguide.