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SonyPatent applicationAR, VR & displaysInterest 6/10

Sony patents display tech that balances sharpness and focus range

Sony describes an image display device that uses multiple light sources and a scanning mechanism to project images directly onto the user's retina. The system controls the spread of each light beam to simultaneously improve image resolution and widen the range of distances where the image stays in focus.

Why it mattersThis technology could make future head-mounted displays easier to use by reducing the need for users to adjust their head position to keep the image clear.

In the filing’s own words

The purpose of the present invention is to achieve both expansion of a free focus range and improvement in image resolution. An image display device of the present invention includes: a plurality of light source units; a scanning unit that scans each of emitted light beams emitted from each of the light source units; a relay optical system that relays the light beams scanned by the scanning unit to form an image on a retina of an observer and allows the observer to visually recognize the image; and a control unit that controls driving of each of the light source units, and divergence angles of the respective emitted light beams are different.

What exactly they claim (claim 1)

1. An image display device, comprising: a plurality of light source units; a scanning unit that scans each of emitted light beams emitted from each of the light source units; a relay optical system that relays the light beams scanned by the scanning unit to form an image on a retina of an observer and allows the observer to visually recognize the image; and a control unit that controls driving of each of the light source units, wherein divergence angles of the respective emitted light beams are different.

Facts

Company
Sony (SONY GROUP CORPORATION)
Official title
IMAGE DISPLAY DEVICE AND IMAGE DISPLAY METHOD
Publication number
US20260287897A1
Application number
19490838
Filed
Jun 12, 2024
Published
Sep 24, 2026
Inventors
1
Claims
19

Classified under

G02B 27/0172 Physics & computingG02B 27/0093 Physics & computingG02B 27/0179 Physics & computingG02B 2027/0112 Physics & computing
Read the full filing (official PDF) ↗ Open in the Patent Tracker

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Summaries are simplified from the filing’s own abstract and first claim. A patent filing is not a product announcement.
Patent data and drawings: U.S. Patent and Trademark Office (USPTO). Nebula is not affiliated with or endorsed by the USPTO.