Meta platforms technologies, llc (20240093984). FRINGE PROJECTOR FOR DEPTH SENSING simplified abstract

FRINGE PROJECTOR FOR DEPTH SENSING

Organization Name

meta platforms technologies, llc

Inventor(s)

Guohua Wei of Redmond WA (US)

Petr Markov of Seattle WA (US)

Qing Chao of Redmond WA (US)

FRINGE PROJECTOR FOR DEPTH SENSING - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240093984 titled 'FRINGE PROJECTOR FOR DEPTH SENSING

Simplified Explanation

The patent application describes an optical system for eye tracking in a head-mounted device using a laser and output couplers to generate a fringe pattern on the user's eye.

• The optical system includes a transparent layer, a laser, and first and second output couplers.
• The laser emits light into the transparent layer.
• The first output coupler out-couples a first portion of the light from a first location, while the second output coupler out-couples a second portion from a second location.
• The combined light from the output couplers generates a fringe pattern on the user's eye for eye tracking operations.

Potential Applications

This technology can be applied in virtual reality headsets, augmented reality devices, medical devices for eye tracking in diagnostics, and assistive technologies for individuals with disabilities.

Problems Solved

This technology solves the problem of accurately tracking eye movements in head-mounted devices, enabling more precise control and interaction in various applications.

Benefits

The benefits of this technology include improved user experience, enhanced accuracy in eye tracking, increased efficiency in user interactions, and potential advancements in medical diagnostics.

Potential Commercial Applications

Commercial applications of this technology include gaming peripherals, medical equipment manufacturers, assistive technology companies, and virtual/augmented reality developers.

Possible Prior Art

One possible prior art for this technology could be eye tracking systems used in research labs or medical facilities, which may not be as compact or integrated into head-mounted devices as described in this patent application.

How does this technology compare to existing eye tracking systems in terms of accuracy and precision?

This article does not provide a direct comparison to existing eye tracking systems in terms of accuracy and precision. Further research or testing may be needed to determine the performance metrics of this technology compared to others.

What are the potential limitations or challenges of implementing this technology in different environments or user scenarios?

The article does not address potential limitations or challenges of implementing this technology in various environments or user scenarios. Factors such as lighting conditions, user movement, and calibration may affect the performance of the eye tracking system and should be considered in future development and deployment.

Original Abstract Submitted

an optical system is configured to support eye tracking operations in a head mounted device. the optical system includes a transparent layer, a laser, and first and second output couplers. the laser is configured to emit light into the transparent layer. the first output coupler is configured to out-couple a first portion of the light from a first location of the transparent layer. the second output coupler is configured to out-couple a second portion of the light from a second location of the transparent layer. the first and second output couplers are in the field-of-view of a user. a combination of the first portion of the light and the second portion of the light out-coupled from the first output coupler and the second output coupler is configured to generate a fringe pattern, for example, on an eye of a user of the head mounted device.