20240012176. METASURFACE FOR FAR-FIELD BEAM CHARACTERISTIC CONTROL OF MICRO LIGHT EMITTING DIODES simplified abstract (Meta Platforms Technologies, LLC)

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METASURFACE FOR FAR-FIELD BEAM CHARACTERISTIC CONTROL OF MICRO LIGHT EMITTING DIODES

Organization Name

Meta Platforms Technologies, LLC

Inventor(s)

Zhaocheng Liu of Redmond WA (US)

Zhaoyu Nie of Kenmore WA (US)

METASURFACE FOR FAR-FIELD BEAM CHARACTERISTIC CONTROL OF MICRO LIGHT EMITTING DIODES - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240012176 titled 'METASURFACE FOR FAR-FIELD BEAM CHARACTERISTIC CONTROL OF MICRO LIGHT EMITTING DIODES

Simplified Explanation

The abstract of this patent application describes a method for controlling the far-field characteristics of light emitted by a micro LED using a metasurface of nanostructures formed on the LED. The metasurface is defined by an objective function for the emitted light, the shape of the nanostructures, and fabrication constraints. The number and location of the nanostructures are determined using an adjoint simulation technique, and the shape parameters are optimized using a shape optimization technique.

  • The patent application describes a method for controlling the characteristics of light emitted by a micro LED.
  • A metasurface of nanostructures is formed on the LED to control the far-field characteristics of the emitted light.
  • The metasurface is defined by an objective function, nanostructure shape, and fabrication constraints.
  • The number and location of the nanostructures are determined using an adjoint simulation technique.
  • The shape parameters for the nanostructures are optimized using a shape optimization technique.

Potential applications of this technology:

  • Improved beam shaping and orientation for micro LEDs.
  • Enhanced beam focusing and polarization control for micro LEDs.
  • Advanced control over the far-field characteristics of light emitted by micro LEDs.

Problems solved by this technology:

  • Lack of precise control over the far-field characteristics of light emitted by micro LEDs.
  • Difficulty in achieving desired beam shape, orientation, focusing, and polarization with micro LEDs.

Benefits of this technology:

  • Enables precise control and manipulation of the far-field characteristics of light emitted by micro LEDs.
  • Provides improved beam shaping, orientation, focusing, and polarization control for micro LEDs.
  • Offers potential for enhanced performance and versatility in various applications utilizing micro LEDs.


Original Abstract Submitted

a far-field characteristic of light emitted by a micro light emitting diode (�led) such as a beam shape, a beam orientation, a beam focusing, or a beam polarization is controlled by a metasurface of nanostructures formed on the �led. the metasurface is characterized or defined by a far-field objective function for the emitted light, selection of a nanostructure shape, and application of one or more fabrication constraints to shape parameters for the selected nanostructure shape. a number and a location of the nanostructures is determined employing an adjoint simulation technique, and the shape parameters for the nanostructure are tuned employing a shape optimization technique.