Patents by Inventor James Kent Wallace

James Kent Wallace 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).

  • Broadband, common-path, interferometric wavefront sensor
    Patent number: 9976912
    Abstract: Hybrid sensors comprising Shack-Hartmann Wavefront Sensor (S-HWFS) and Zernike Wavefront Sensor (Z-WFS) capabilities are presented. The hybrid sensor includes a Z-WFS optically arranged in-line with a S-HWFS such that the combined wavefront sensor operates across a wide dynamic range and noise conditions. The Z-WFS may include the ability to introduce a dynamic phase shift in both transmissive and reflective modes.
    Type: Grant
    Filed: April 14, 2015
    Date of Patent: May 22, 2018
    Assignee: California Institute of Technology
    Inventor: James Kent Wallace
  • BROADBAND, COMMON-PATH, INTERFEROMETRIC WAVEFRONT SENSOR
    Publication number: 20150219501
    Abstract: Hybrid sensors comprising Shack-Hartmann Wavefront Sensor (S-HWFS) and Zernike Wavefront Sensor (Z-WFS) capabilities are presented. The hybrid sensor includes a Z-WFS optically arranged in-line with a S-HWFS such that the combined wavefront sensor operates across a wide dynamic range and noise conditions. The Z-WFS may include the ability to introduce a dynamic phase shift in both transmissive and reflective modes.
    Type: Application
    Filed: April 14, 2015
    Publication date: August 6, 2015
    Inventor: James Kent Wallace
  • Broadband, common-path, interferometric wavefront sensor
    Patent number: 9063002
    Abstract: Hybrid sensors comprising Shack-Hartmann Wavefront Sensor (S-HWFS) and Zernike Wavefront Sensor (Z-WFS) capabilities are presented. The hybrid sensor includes a Z-WFS optically arranged in-line with a S-HWFS such that the combined wavefront sensor operates across a wide dynamic range and noise conditions. The Z-WFS may include the ability to introduce a dynamic phase shift in both transmissive and reflective modes.
    Type: Grant
    Filed: January 22, 2013
    Date of Patent: June 23, 2015
    Assignee: CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventor: James Kent Wallace
  • Free space communication system with common optics and fast, adaptive tracking
    Publication number: 20040208595
    Abstract: A free space optical data communications system, including transceiver nodes employing common optics in both the transmit and receive subsystem, is disclosed. Likewise, a beacon is disclosed utilizing some of the common optics as well. In one embodiment, a double-faced mirror cooperates with a beacon, a primary mirror, and the transmit and receive subsystems. In one other embodiment, the beacon is located in front of the primary mirror. In still another embodiment, the common optics includes TEM11 mode signal separation using phase plates. A tracking system in each embodiment maintains alignment of the optics with a second node by generating a correction vector responsive to the incoming signal from its companion node.
    Type: Application
    Filed: May 21, 2002
    Publication date: October 21, 2004
    Inventors: Fai Mok, James Kent Wallace