SonyPatent applicationChips & hardwareInterest 6/10

Sony patents laser film that balances electrical conductivity and light transmission

Patent drawing from the official filing.

Sony describes a light-emitting element that uses a conductive film layered on top of a laser-generating structure. This film is designed to conduct electricity while still allowing laser light to pass through by having regions with different levels of microscopic defects.

Why it mattersThis design could improve the efficiency of laser components used in data centers or advanced electronics by better managing the trade-off between electrical contact and light output.

In the filing’s own words

The present disclosure provides a light-emitting element capable of increasing the conductivity of a conductive film while suppressing a decrease in light transmittance. [Solution] To solve the above problem, the present disclosure provides a light-emitting element including: a laminated structure that generates a laser light; and a conductive film that is laminated on the laminated structure, transmits the laser light, and has regions each with a defect density which is different.

What exactly they claim (claim 1)

1. A light-emitting element comprising: a laminated structure that generates a laser light; and a conductive film that is laminated on the laminated structure, transmits the laser light, and has regions each with a defect density which is different.

Facts

Company: Sony (SONY GROUP CORPORATION)
Official title: LIGHT-EMITTING ELEMENT
Publication number: US20260312368A1
Application number: 19482796
Filed: Apr 17, 2024
Published: Oct 8, 2026
Inventors: 4
Claims: 20

Classified under

H01S 5/18361 Electricity & electronicsH01S 5/0421 Electricity & electronics

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.