Patents by Inventor Neinyi Li

Neinyi Li 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: 20200321755
    Abstract: A VCSEL array includes a plurality of VCSEL elements arranged in a programmed pattern defining a center portion and a peripheral edge portion. The interval distances between the VCSEL elements in the vicinity of the center portion and/or at the center portion are greater than the interval distances between the VCSEL elements close to the peripheral edge portion, such that the VCSEL array has a uniform power output.
    Type: Application
    Filed: April 8, 2020
    Publication date: October 8, 2020
    Inventors: Li WANG, NEINYI LI
  • Patent number: 7791591
    Abstract: An optical mouse for controlling a cursor on a display. The mouse emits a light beam that interacts with a target surface and receives reflected light therefrom to detect movement of the mouse. The mouse includes a housing, a single-mode VCSEL disposed within the housing for emitting the light beam through a surface of the housing, the emitted light interacting with the target surface, a photodetector disposed within the housing that receives the light reflected from the target surface and that provides an electrical output and a processor that receives the electrical output and calculates a value that is indicative of the amount and direction of movement of the optical mouse relative to the target surface.
    Type: Grant
    Filed: August 4, 2006
    Date of Patent: September 7, 2010
    Assignee: Emcore Corporation
    Inventors: Douglas Collins, Neinyi Li
  • Patent number: 7408967
    Abstract: A surface emitting laser having a substrate with top and bottom surfaces, a first stack of mirror layers of alternating indices of refraction located upon the top surface of the substrate and an active layer disposed over the first stack. The surface emitting layer also includes a second stack of mirror layers of alternating indices of refraction disposed over the active layer and a reduced-diameter mirror extension portion of the second stack that forms an optical aperture of the surface emitting laser extending outwards from a center portion of the second stack on a side of the second stack opposite the active layer.
    Type: Grant
    Filed: May 25, 2006
    Date of Patent: August 5, 2008
    Assignee: Emcore Corporation
    Inventors: Douglas Collins, Neinyi Li
  • Publication number: 20080030472
    Abstract: An optical mouse for controlling a cursor on a display. The mouse emits a light beam that interacts with a target surface and receives reflected light therefrom to detect movement of the mouse. The mouse includes a housing, a single-mode VCSEL disposed within said housing for emitting the light beam through a surface of the housing, the emitted light interacting with the target surface, a photodetector disposed within the housing that receives the light reflected from the target surface and that providing an electrical output and a processor that receives the electrical output and calculates a value that is indicative of the amount and direction of movement of the optical mouse relative to the target surface.
    Type: Application
    Filed: August 4, 2006
    Publication date: February 7, 2008
    Inventors: Douglas Collins, Neinyi Li
  • Publication number: 20070153861
    Abstract: A surface emitting laser having a substrate with top and bottom surfaces, a first stack of mirror layers of alternating indices of refraction located upon the top surface of the substrate and an active layer disposed over the first stack. The surface emitting layer also includes a second stack of mirror layers of alternating indices of refraction disposed over the active layer and a reduced-diameter mirror extension portion of the second stack that forms an optical aperture of the surface emitting laser extending outwards from a center portion of the second stack on a side of the second stack opposite the active layer.
    Type: Application
    Filed: May 25, 2006
    Publication date: July 5, 2007
    Inventors: Douglas Collins, Neinyi Li