Patents by Inventor Il Hung Park

Il Hung Park 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).

  • Patent number: 8421177
    Abstract: The vertical silicon photomultiplier according to the present invention includes a trench electrode and a PN-junction layer perpendicular to the trench electrode forms and can maximize the quantum efficiency at optical wavelengths, 200˜900 nm in such a way that: it generates electric fields horizontal thereto, by applying a reverse bias voltage to between the trench electrode and the PN-junction layer, so that, although ultraviolet light does not reach the PN-junction layer but is incident on the surface, electron-hole pairs can be produced by the horizontally generated electric fields although and an avalanche breakdown can be thus generated, and it allows ultraviolet light, capable of being transmitted to a relatively deep depth, to react with the PN-junction layer.
    Type: Grant
    Filed: January 27, 2011
    Date of Patent: April 16, 2013
    Assignees: Ewha University-Industry Collaboration Foundation, Sense Technology
    Inventor: Il Hung Park
  • Patent number: 8367994
    Abstract: An optical module is disclosed. The optical module includes: (1) a mirror part for controlling its reflection angle in an analog method; (2) an aperture for controlling an amount of light incident to the mirror part, the aperture being installed facing the mirror part; (3) a detector for detecting an optical signal from a light transmitted from the mirror part; (4) a beam emitter for emitting a beam, the beam emitter being adjacently installed to the optical signal detector; and (5) a controller for controlling the mirror part so as to locate an object, detected by the optical signal detector, at the center portion of the optical signal detector, and for controlling the beam emitter and the mirror part so as to emit a beam from the beam emitter to the object detected by the optical signal detector. The optical module can observe an object both in a wide field of view (FOV) and in detail, effectively track a rapidly moving object, and emit a beam to the object.
    Type: Grant
    Filed: July 19, 2008
    Date of Patent: February 5, 2013
    Assignees: EWHA University-Industry Collaboration Foundation, Sense Technology
    Inventor: Il Hung Park
  • Patent number: 8186839
    Abstract: An optical module that effectively observes a rapidly moving event or object is provided. The optical module includes first and second mirrors, and an optical signals detector, which are installed in a body thereof. The first mirror has a wide field of view and detects the event or object over a wide observing region. The second mirror observes the event or object detected by the first mirror at a high resolution. The focal length of the second mirror is greater than that of the first mirror. The optical signal detector detects an optical signal in light transmitted from the first mirror or the second mirror. The body forms apertures which correspond to the first and second mirrors, respectively and provides an optical path from the first and second mirrors to the optical signal detector. Therefore, the optical module can observe the event or object detected by the first mirror at a high resolution.
    Type: Grant
    Filed: May 25, 2007
    Date of Patent: May 29, 2012
    Assignee: Industry Collaboration Foundation of Ewha University
    Inventors: Il Hung Park, Jae Hyoung Park
  • Publication number: 20120025340
    Abstract: The vertical silicon photomultiplier according to the present invention includes a trench electrode and a PN-junction layer perpendicular to the trench electrode forms and can maximize the quantum efficiency at optical wavelengths, 200˜900 nm in such a way that: it generates electric fields horizontal thereto, by applying a reverse bias voltage to between the trench electrode and the PN junction layer, so that, although ultraviolet light does not reach the PN-junction layer but is incident on the surface, electron-hole pairs can be produced by the horizontally generated electric fields although and an avalanche breakdown can be thus generated, and it allows ultraviolet light, capable of being transmitted to a relatively deep depth, to react with the PN-junction layer.
    Type: Application
    Filed: January 27, 2011
    Publication date: February 2, 2012
    Applicants: SENSE TECHNOLOGY, EWHA UNIVERSITY-INDUSTRY COLLABORATION FOUNDATION
    Inventor: IL HUNG PARK
  • Publication number: 20100237226
    Abstract: An optical module is disclosed. The optical module includes: (1) a mirror part for controlling its reflection angle in an analog method; (2) an aperture for controlling an amount of light incident to the mirror part, the aperture being installed facing the mirror part; (3) a detector for detecting an optical signal from a light transmitted from the mirror part; (4) a beam emitter for emitting a beam, the beam emitter being adjacently installed to the optical signal detector; and (5) a controller for controlling the mirror part so as to locate an object, detected by the optical signal detector, at the center portion of the optical signal detector, and for controlling the beam emitter and the mirror part so as to emit a beam from the beam emitter to the object detected by the optical signal detector. The optical module can observe an object both in a wide field of view (FOV) and in detail, effectively track a rapidly moving object, and emit a beam to the object.
    Type: Application
    Filed: July 19, 2008
    Publication date: September 23, 2010
    Applicants: EWHA UNIVERSITY-INDUSTRY COLLABORATION FOUNDATION, SENSE TECHNOLOGY
    Inventor: Il Hung Park
  • Publication number: 20080186605
    Abstract: An optical module that effectively observes a rapidly moving event or object is provided. The optical module includes first and second mirrors, and an optical signals detector, which are installed in a body thereof. The first mirror has a wide field of view and detects the event or object over a wide observing region. The second mirror observes the event or object detected by the first mirror at a high resolution. The focal length of the second mirror is greater than that of the first mirror. The optical signal detector detects an optical signal in light transmitted from the first mirror or the second mirror. The body forms apertures which correspond to the first and second mirrors, respectively and provides an optical path from the first and second mirrors to the optical signal detector. Therefore, the optical module can observe the event or object detected by the first mirror at a high resolution.
    Type: Application
    Filed: May 25, 2007
    Publication date: August 7, 2008
    Applicant: Industry Collaboration Foundation of Ewha University
    Inventors: IL HUNG PARK, Jae Hyoung Park