Patents by Inventor Arash ROHANI

Arash ROHANI 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: 20250341680
    Abstract: The present disclosure is directed to compact packaging for optical MEMS devices, such as one- and two-dimensional beam scanners. An embodiment in accordance with the present disclosure includes a housing that defines a sealed chamber that encloses a light source, a MEMS scanner having a scanning element for steering at least a portion of a light signal provided by the light source in two dimensions as an output signal, an optical element for collimating and/or redirecting the light signal, and a monitor photodiode for providing a local feedback signal based on the orientation of the scanning element. Preferably, the MEMS scanner and the monitor photodiode are monolithically integrated on the same substrate and the housing is configured as an electrostatic shield for the components located in the sealed chamber.
    Type: Application
    Filed: July 14, 2025
    Publication date: November 6, 2025
    Inventors: Frank BAI, John DOMM, Kourosh KHOSRAVIANI, Talha KOSE, Geoffrey Wesley LEE, Zhenhao LI, Kenneth MCCOUBREY, Arash ROHANI, Niladri SARKAR, Duncan Wesley STRATHEARN, Dong YAN, Nino ZAHIROVIC
  • Patent number: 12360361
    Abstract: The present disclosure is directed to compact packaging for optical MEMS devices, such as one- and two-dimensional light scanners. An embodiment in accordance with the present disclosure includes a housing having a chamber for holding a light source and a MEMS scanner. The MEMS scanner receives light from the light source via an optical element disposed on a cover of the housing and steers an output signal along a propagation direction through the cover while steering the output signal in at least one dimension.
    Type: Grant
    Filed: February 25, 2022
    Date of Patent: July 15, 2025
    Assignee: AdHawk Microsystems Inc.
    Inventors: Niladri Sarkar, Dong Yan, Geoffrey Lee, Arash Rohani, Nino Zahirovic, Duncan Wesley Strathearn, John Domm, Zhenhao Li, Gregory A. Magel
  • Publication number: 20220252868
    Abstract: The present disclosure is directed to compact packaging for optical MEMS devices, such as one- and two-dimensional light scanners. An embodiment in accordance with the present disclosure includes a housing having a chamber for holding a light source and a MEMS scanner. The MEMS scanner receives light from the light source via an optical element disposed on a cover of the housing and steers an output signal along a propagation direction through the cover while steering the output signal in at least one dimension.
    Type: Application
    Filed: February 25, 2022
    Publication date: August 11, 2022
    Inventors: Niladri Sarkar, Dong YAN, Geoffrey LEE, Arash ROHANI, Nino ZAHIROVIC, Duncan Wesley STRATHEARN, John DOMM, Zhenhao LI, Gregory A. MAGEL
  • Patent number: 11262577
    Abstract: The present disclosure is directed to compact packaging for optical MEMS devices, such as one- and two-dimensional beam scanners. An embodiment in accordance with the present disclosure includes a light source and a MEMS-based scanning element for steering at least a portion of the light provided by the light source in at least one dimension as an output light signal, as well as one or more optical elements for collimating and/or redirecting light within a sealed chamber defined by the elements of a housing. In some embodiments, the one or more optical elements include a reflective lens that collimates the light provided by the light source while simultaneously correcting phase-front error imparted by the scanning element while steering the output beam.
    Type: Grant
    Filed: December 26, 2018
    Date of Patent: March 1, 2022
    Assignee: AdHawk Microsystems
    Inventors: Niladri Sarkar, Dong Yan, Geoffrey Lee, Arash Rohani, Nino Zahirovic, Duncan Wesley Strathearn
  • Patent number: 10908683
    Abstract: Aspects of the present disclosure describe an improved calibration method for systems, methods, and structures that provide eye-tracking by 1) steering a beam of light through the effect of a microelectromechanical system (MEMS) onto a surface of the eye and 2) detecting light reflected from features of the eye including corneal surface, pupil, iris—among others. Positional/geometric/feature/structural information pertaining to the eye is determined from timing information associated with the reflected light.
    Type: Grant
    Filed: December 31, 2018
    Date of Patent: February 2, 2021
    Assignee: AdHawk Microsystems
    Inventors: Niladri Sarkar, Fan Yang, Arash Rohani
  • Publication number: 20190204913
    Abstract: Aspects of the present disclosure describe an improved calibration method for systems, methods, and structures that provide eye-tracking by 1) steering a beam of light through the effect of a microelectromechanical system (MEMS) onto a surface of the eye and 2) detecting light reflected from features of the eye including corneal surface, pupil, iris—among others. Positional/geometric/feature/structural information pertaining to the eye is determined from timing information associated with the reflected light.
    Type: Application
    Filed: December 31, 2018
    Publication date: July 4, 2019
    Inventors: Niladri SARKAR, Fan YANG, Arash ROHANI
  • Publication number: 20190196179
    Abstract: The present disclosure is directed to compact packaging for optical MEMS devices, such as one- and two-dimensional beam scanners. An embodiment in accordance with the present disclosure includes a light source and a MEMS-based scanning element for steering at least a portion of the light provided by the light source in at least one dimension as an output light signal, as well as one or more optical elements for collimating and/or redirecting light within a sealed chamber defined by the elements of a housing. In some embodiments, the one or more optical elements include a reflective lens that collimates the light provided by the light source while simultaneously correcting phase-front error imparted by the scanning element while steering the output beam.
    Type: Application
    Filed: December 26, 2018
    Publication date: June 27, 2019
    Inventors: Niladri Sarkar, Dong YAN, Geoffrey LEE, Arash ROHANI, Nino ZAHIROVIC, Duncan Wesley STRATHEARN