Patents by Inventor Shamir Rosen

Shamir Rosen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20230367141
    Abstract: Adaptive spectacles include a spectacle frame and first and second electrically-tunable lenses, mounted in the spectacle frame and having respective focal powers and optical centers that are determined by control voltages applied thereto. Control circuitry is configured to apply the control voltages so as to shift the optical centers of the electrically-tunable lenses responsively to the focal powers of the electrically-tunable lenses.
    Type: Application
    Filed: July 24, 2023
    Publication date: November 16, 2023
    Inventors: Yoav Yadin, Yariv Haddad, Shamir Rosen, Itamar Haim Grutman, Yuval Vardy
  • Patent number: 11774782
    Abstract: An optical device includes an electro-optical layer and conductive electrodes disposed over opposing first and second side of the electro-optical layer. Control circuitry is configured to apply at least first control voltage waveforms and second control voltage waveforms between the conductive electrodes so as to generate respective first and second phase modulation profiles in the electro-optical layer, which cause rays of optical radiation that are incident on the device to converge or diverge with respective first and second focal powers, and to change from the first focal power to the second focal power by concurrently applying overshoot control voltages to each of a plurality of the conductive electrodes for different, respective transition periods, followed by application of the second control voltage waveforms.
    Type: Grant
    Filed: November 9, 2021
    Date of Patent: October 3, 2023
    Assignee: OPTICA AMUKA (A.A.) LTD.
    Inventors: Yoav Yadin, Yariv Haddad, Shamir Rosen, Itamar Haim Grutman, Yuval Vardy
  • Patent number: 11747708
    Abstract: An optical device (20) includes an electro-optical layer, including a liquid crystal material (24) with a heliconical structure having a pitch that is less than 250 nm and is modifiable by an electric field. An array of excitation electrodes (28) extends over the electro-optical layer. Control circuitry (23) is coupled to apply control voltage waveforms to the excitation electrodes and is configured to modify the control voltage waveforms so as to locally modify a molecule director angle of the heliconical structure and thus to generate a specified phase modulation profile in the electro-optical layer.
    Type: Grant
    Filed: April 5, 2022
    Date of Patent: September 5, 2023
    Assignee: OPTICA AMUKA (A.A.) LTD.
    Inventors: Shamir Rosen, Yoav Yadin, Yariv Haddad
  • Publication number: 20220229342
    Abstract: An optical device (20) includes an electro-optical layer, including a liquid crystal material (24) with a heliconical structure having a pitch that is less than 250 nm and is modifiable by an electric field. An array of excitation electrodes (28) extends over the electro-optical layer. Control circuitry (23) is coupled to apply control voltage waveforms to the excitation electrodes and is configured to modify the control voltage waveforms so as to locally modify a molecule director angle of the heliconical structure and thus to generate a specified phase modulation profile in the electro-optical layer.
    Type: Application
    Filed: April 5, 2022
    Publication date: July 21, 2022
    Inventors: Shamir Rosen, Yoav Yadin, Yariv Haddad
  • Patent number: 11360330
    Abstract: Optical apparatus (20) includes a transparent envelope (26) configured to be mounted in a spectacle frame. An electro-optical layer (46) is contained within the envelope, with an array of transparent excitation electrodes (50) disposed over a first surface of the transparent envelope. A transparent common electrode (52) is disposed over a second surface of the transparent envelope, opposite the first surface, and is electrically separated into a central region defining an active area (24) of the electro-optical layer and a peripheral region, which at least partially surrounds the central region. Control circuitry (72, 82, 92) holds the central region of the transparent common electrode at a predefined common voltage while allowing the peripheral region to float electrically, and to apply control voltage waveforms to the excitation electrodes, relative to the common voltage, so as to generate a specified phase modulation profile in the active area of the electro-optical layer.
    Type: Grant
    Filed: June 13, 2017
    Date of Patent: June 14, 2022
    Assignee: OPTICA AMUKA (A.A.) LTD.
    Inventors: Yoav Yadin, Yariv Haddad, Shamir Rosen, Aviezer Ben-Eliyahu
  • Patent number: 11327385
    Abstract: An optical device (20) includes an electro-optical layer, including a liquid crystal material (24) with a heliconical structure having a pitch that is less than 250 nm and is modifiable by an electric field. An array of excitation electrodes (28) extends over the electro-optical layer. Control circuitry (23) is coupled to apply control voltage waveforms to the excitation electrodes and is configured to modify the control voltage waveforms so as to locally modify a molecule director angle of the heliconical structure and thus to generate a specified phase modulation profile in the electro-optical layer.
    Type: Grant
    Filed: March 13, 2017
    Date of Patent: May 10, 2022
    Assignee: OPTICA AMUKA (A.A.) LTD.
    Inventors: Shamir Rosen, Yoav Yadin, Yariv Haddad
  • Publication number: 20220066240
    Abstract: An optical device includes an electro-optical layer and conductive electrodes disposed over opposing first and second side of the electro-optical layer. Control circuitry is configured to apply at least first control voltage waveforms and second control voltage waveforms between the conductive electrodes so as to generate respective first and second phase modulation profiles in the electro-optical layer, which cause rays of optical radiation that are incident on the device to converge or diverge with respective first and second focal powers, and to change from the first focal power to the second focal power by concurrently applying overshoot control voltages to each of a plurality of the conductive electrodes for different, respective transition periods, followed by application of the second control voltage waveforms.
    Type: Application
    Filed: November 9, 2021
    Publication date: March 3, 2022
    Inventors: Yoav Yadin, Yariv Haddad, Shamir Rosen, Itamar Haim Grutman, Yuval Vardy
  • Patent number: 11221500
    Abstract: An optical device (40) includes an electro-optical layer (46), having an effective local index of refraction at any given location within an active area of the electro-optical layer that is determined by a voltage waveform applied across the electro-optical layer at the location. Conductive electrodes (50, 52) are disposed over opposing first and second side of the electro-optical layer. Control circuitry (26) is configured to apply control voltage waveforms between the conductive electrodes so as to generate a phase modulation profile in the electro-optical layer that causes rays of optical radiation that are incident on the device to converge or diverge with a given focal power, while varying an amplitude of the control voltage waveforms for the given focal power responsively to an angle of incidence of the rays that impinge on the device from a direction of interest.
    Type: Grant
    Filed: April 5, 2017
    Date of Patent: January 11, 2022
    Assignee: OPTICA AMUKA (A.A.) LTD.
    Inventors: Yoav Yadin, Yariv Haddad, Shamir Rosen, Itamar Haim Grutman, Yuval Vardy
  • Patent number: 11209715
    Abstract: Optical apparatus includes a Fresnel lens (40), including an array of refractive bands (37) bordered by abrupt phase steps (39) of a height selected so as to focus light in different, first and second wavelength ranges from an object plane (35) toward an image plane (36) with a modulation transfer function (MTF) in excess of a predefined threshold, while focusing light in a third wavelength range, intermediate the first and second wavelength ranges, with MTF less than the predefined threshold. A display (32) is configured to generate, at the object plane of the Fresnel lens, an image including first and second pixel colors within the first and second wavelength ranges, respectively.
    Type: Grant
    Filed: January 1, 2019
    Date of Patent: December 28, 2021
    Assignee: OPTICA AMUKA (A.A.) LTD.
    Inventors: Shamir Rosen, Yariv Haddad, Yuval Vardy, Yoav Yadin
  • Publication number: 20210199992
    Abstract: An optical device (20) includes an electro-optical layer, including a liquid crystal material (24) with a heliconical structure having a pitch that is less than 250 nm and is modifiable by an electric field. An array of excitation electrodes (28) extends over the electro-optical layer. Control circuitry (23) is coupled to apply control voltage waveforms to the excitation electrodes and is configured to modify the control voltage waveforms so as to locally modify a molecule director angle of the heliconical structure and thus to generate a specified phase modulation profile in the electro-optical layer.
    Type: Application
    Filed: March 13, 2017
    Publication date: July 1, 2021
    Inventors: Shamir Rosen, Yoav Yadin, Yariv Haddad
  • Publication number: 20210173282
    Abstract: Optical apparatus includes a Fresnel lens (40), including an array of refractive bands (37) bordered by abrupt phase steps (39) of a height selected so as to focus light in different, first and second wavelength ranges from an object plane (35) toward an image plane (36) with a modulation transfer function (MTF) in excess of a predefined threshold, while focusing light in a third wavelength range, intermediate the first and second wavelength ranges, with MTF less than the predefined threshold. A display (32) is configured to generate, at the object plane of the Fresnel lens, an image including first and second pixel colors within the first and second wavelength ranges, respectively.
    Type: Application
    Filed: January 1, 2019
    Publication date: June 10, 2021
    Inventors: Shamir Rosen, Yariv Haddad, Yuval Vardy, Yoav Yadin
  • Publication number: 20200292848
    Abstract: An optical device (40) includes an electro-optical layer (46), having an effective local index of refraction at any given location within an active area of the electro-optical layer that is determined by a voltage waveform applied across the electro-optical layer at the location. Conductive electrodes (50, 52) are disposed over opposing first and second side of the electro-optical layer. Control circuitry (26) is configured to apply control voltage waveforms between the conductive electrodes so as to generate a phase modulation profile in the electro-optical layer that causes rays of optical radiation that are incident on the device to converge or diverge with a given focal power, while varying an amplitude of the control voltage waveforms for the given focal power responsively to an angle of incidence of the rays that impinge on the device from a direction of interest.
    Type: Application
    Filed: April 5, 2017
    Publication date: September 17, 2020
    Inventors: Yoav Yadin, Yariv Haddad, Shamir Rosen, Itamar Haim Grutman, Yuval Vardy
  • Publication number: 20190113772
    Abstract: Optical apparatus (20) includes a transparent envelope (26) configured to be mounted in a spectacle frame. An electro-optical layer (46) is contained within the envelope, with an array of transparent excitation electrodes (50) disposed over a first surface of the transparent envelope. A transparent common electrode (52) is disposed over a second surface of the transparent envelope, opposite the first surface, and is electrically separated into a central region defining an active area (24) of the electro-optical layer and a peripheral region, which at least partially surrounds the central region. Control circuitry (72, 82, 92) holds the central region of the transparent common electrode at a predefined common voltage while allowing the peripheral region to float electrically, and to apply control voltage waveforms to the excitation electrodes, relative to the common voltage, so as to generate a specified phase modulation profile in the active area of the electro-optical layer.
    Type: Application
    Filed: June 13, 2017
    Publication date: April 18, 2019
    Inventors: Yoav Yadin, Yariv Haddad, Shamir Rosen, Aviezer Ben-Eliyahu