17748529. METHOD AND SYSTEM FOR SIMULTANEOUS RECORDING OF SUPERIMPOSED HOLOGRAPHIC GRATINGS FOR AUGMENTED REALITY DEVICES (VARIANTS) simplified abstract (Samsung Electronics Co., Ltd.)

METHOD AND SYSTEM FOR SIMULTANEOUS RECORDING OF SUPERIMPOSED HOLOGRAPHIC GRATINGS FOR AUGMENTED REALITY DEVICES (VARIANTS)

Organization Name

Samsung Electronics Co., Ltd.

Inventor(s)

Aleksandr Evgenyevich Angervaks of St. Petersburg (RU)

Roman Aleksandrovich Okun of St. Petersburg (RU)

Gavril Nikolaevich Vostrikov of Moscow (RU)

Nikolay Viktorovich Muravev of Podolsk (RU)

Vladimir Nikolaevich Borisov of St. Petersburg (RU)

Mikhail Vyacheslavovich Popov of Krasnogorsk (RU)

METHOD AND SYSTEM FOR SIMULTANEOUS RECORDING OF SUPERIMPOSED HOLOGRAPHIC GRATINGS FOR AUGMENTED REALITY DEVICES (VARIANTS) - A simplified explanation of the abstract

This abstract first appeared for US patent application 17748529 titled 'METHOD AND SYSTEM FOR SIMULTANEOUS RECORDING OF SUPERIMPOSED HOLOGRAPHIC GRATINGS FOR AUGMENTED REALITY DEVICES (VARIANTS)

Simplified Explanation

The patent application describes a method and systems for recording superimposed holographic gratings for augmented reality devices.

• The method involves generating a beam from a single light source and directing it to a decoherence unit at a specific angle.
• The decoherence unit splits the beam into at least two recording beams and transmits them through separate recording channels.
• The output angles of each recording beam are different, and they are designed to be non-interfering when leaving the decoherence unit.
• The recording beams illuminate a recording material layer and a master diffractive optical element/holographic optical element (DOE/HOE) that contains pre-formed diffraction/holographic gratings.
• The simultaneous exposure of the recording material layer and the master DOE/HOE results in the formation of superimposed holographic gratings with the same surface period but different spatial periods.

Potential applications of this technology:

• Augmented reality devices: The superimposed holographic gratings can be used to enhance the visual experience in augmented reality devices, providing more realistic and immersive virtual objects.
• 3D displays: The technology can be applied to create 3D displays that offer a more realistic and interactive viewing experience.
• Optical data storage: The superimposed holographic gratings can be used for high-density optical data storage, allowing for more efficient and compact storage solutions.

Problems solved by this technology:

• Simultaneous recording: The method allows for the simultaneous recording of multiple holographic gratings, reducing the time and complexity of the recording process.
• Non-interfering recording beams: By ensuring that the recording beams are non-interfering, the method eliminates unwanted interference patterns and improves the quality of the recorded holographic gratings.
• Different spatial periods: The ability to create superimposed holographic gratings with different spatial periods allows for more versatile and customizable holographic displays.

Benefits of this technology:

• Improved visual experience: The superimposed holographic gratings enhance the visual experience in augmented reality devices and 3D displays, providing more realistic and immersive virtual objects.
• Efficient data storage: The high-density optical data storage enabled by the technology allows for more efficient and compact storage solutions.
• Simplified recording process: The simultaneous recording of multiple holographic gratings reduces the time and complexity of the recording process, making it more efficient and cost-effective.

Original Abstract Submitted

A method and systems for simultaneous recording of superimposed holographic gratings for augmented reality devices are provided. The method includes: generating a beam by a single light source, directing the beam to a decoherence unit at a predetermined angle, forming at least two recording beams by the decoherence unit by splitting the beam, forming at least two recording channels in the decoherence unit to transmit the at least two recording beams and output them from the decoherence unit, output angles of each of the at least two recording beams being different, the at least two recording beams being non-interfering when leaving the decoherence unit, which is provided in accordance with at least one of: output times, spatial positions, polarization states, or spectral compositions of each of the at least two recording beams, illuminating a recording material layer and one master diffractive optical element/master holographic optical element (master DOE/HOE) comprising at least one preliminary formed diffraction/holographic grating by the at least two non-interfering recording beams, simultaneously forming at least two superimposed holographic gratings from the master DOE/HOE on or in the recording material layer, the formed superimposed holographic gratings having a same surface period, but a different spatial period.