Patents Assigned to Namuga Co., Ltd.
  • Publication number: 20250189635
    Abstract: A light source module has a holder for fixing a light transmitter and a light receiver onto a substrate, the light transmitter having a light source placed on one side of the substrate and emitting light for measuring a depth distance, and a diverging lens assembly emitting light directed from the light source toward a target object; and the light receiver having a converging lens assembly for receiving light reflected from the target object, and a sensor unit comprising a single pixel or multiple pixels for detecting the light. The module has a connection unit that includes a light shielding structure blocking noise light directly coming from the light source to the light receiver, an optical path between the light shielding structure and the light transmitter to recognizes a timing of the light emitted from the light source, and an optical path space structure is located below the optical path.
    Type: Application
    Filed: November 27, 2024
    Publication date: June 12, 2025
    Applicant: Namuga Co., Ltd.
    Inventors: Jun Youb LEE, Young Gyu KANG, Dong Ho LEE
  • Publication number: 20250164610
    Abstract: An optical package has a light source module including a light source, a first component for driving the light source, and a light source board having a first side on which the light source is stacked and a second side on which the first component is under-stacked. The optical package has a main board in which a first region is open and to which the light source module is coupled so that the first component is positioned in the first region. Also, the optical package has a sensor module including an optical sensor board disposed to be spaced apart from the main board through a spacer, thereby defining a separation space, and a second component disposed in the separation space.
    Type: Application
    Filed: November 19, 2024
    Publication date: May 22, 2025
    Applicant: Namuga Co., Ltd.
    Inventors: Jun Youb LEE, Young Gyu KANG, Dong Ho LEE
  • Patent number: 12099211
    Abstract: An embodiment of the present disclosure may provide a microlens array including: an optical substrate configured to define multiple cells; and multiple microlenses distributed on the optical substrate and having angle profiles or tilting profiles, wherein angle profiles of the multiple cells are defined based on the shapes of edges of the cells, and tilting profiles of the multiple cells are defined based on the tilts of the microlenses or the tilt of the optical substrate.
    Type: Grant
    Filed: August 4, 2021
    Date of Patent: September 24, 2024
    Assignee: Namuga Co., Ltd.
    Inventors: Jun Youb Lee, Young Gyu Kang, Jeong Hwa Seo
  • Patent number: 12100931
    Abstract: An embodiment provides a beam projector module that includes: a light source configured to output light; a substrate configured to support the light source; an optical device configured to reduce the light in terms of intensity output to a predetermined space; a frame configured to space the optical device apart from the light source by a predetermined distance, the frame forming a closed space with the substrate and the optical device; a temperature sensor configured to measure a temperature of the frame; and a processor configured to control an output of the light source. The processor is configured to operate the light source in an eye-safety mode when a temperature drop rate of the frame exceeds a reference value.
    Type: Grant
    Filed: June 3, 2021
    Date of Patent: September 24, 2024
    Assignee: Namuga Co., Ltd.
    Inventors: Jun Youb Lee, Young Gyu Kang, Jeong Hwa Seo
  • Patent number: 12092310
    Abstract: A light source module includes a substrate; a light source disposed on the substrate; a lens assembly configured to transmit light transferred from the light source; and an optical barrier having a shape which surrounds the light source to block light transferred from the light source.
    Type: Grant
    Filed: June 27, 2023
    Date of Patent: September 17, 2024
    Assignee: NAMUGA CO., LTD.
    Inventors: Jun Youb Lee, Young Gyu Kang, Tae Youn Won
  • Publication number: 20230341121
    Abstract: A light source module includes a substrate; a light source disposed on the substrate; a lens assembly configured to transmit light transferred from the light source; and an optical barrier having a shape which surrounds the light source to block light transferred from the light source.
    Type: Application
    Filed: June 27, 2023
    Publication date: October 26, 2023
    Applicant: Namuga Co., Ltd.
    Inventors: Jun Youb LEE, Young Gyu KANG, Tae Youn WON
  • Publication number: 20230040923
    Abstract: A light source module includes a substrate; a light source disposed on the substrate; a lens assembly configured to transmit light transferred from the light source; and an optical barrier having a shape which surrounds the light source to block light transferred from the light source.
    Type: Application
    Filed: August 31, 2021
    Publication date: February 9, 2023
    Applicant: Namuga Co., Ltd.
    Inventors: Jun Youb LEE, Young Gyu KANG, Tae Youn WON
  • Patent number: 11555904
    Abstract: Disclosed is a system including: a beam projector module comprising a light source and an optical device configured to diffuse light output from the light source to reduce an intensity of the light; an image sensor configured to receive reflected light formed by the light reflected from an object; and a signal processing device configured to measure a distance from the object by analyzing a characteristic of the reflected light, wherein the signal processing device operates the beam projector module in an eye-safety mode when the characteristic of the reflected light corresponds to a crack characteristic.
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: January 17, 2023
    Assignee: Namuga Co., Ltd.
    Inventors: Jun Youb Lee, Ji Soo Won, Jung Ho Lee, Young Gyu Kang, Jeong Hwa Seo
  • Patent number: 11467260
    Abstract: A distance measuring apparatus has a substrate supporting, on a first surface thereof, a light source that emits light and a first optical element that decreases the intensity of the emitted light, and a processor on a second surface opposite the first surface. A light receiving element and a second optical element, which is at a higher position than the light receiving element, both receive the emitted light after reflecting from an object. A frame is connected to the substrate and spaces the first optical element and the second optical element a predetermined distance apart from the light source and the light receiving element, and a partition is disposed between the light source and the light receiving element, thereby defining a first cavity housing the light source and a second cavity housing the light receiving element. The processor is electrically connected to the light source and controls the light source.
    Type: Grant
    Filed: November 26, 2019
    Date of Patent: October 11, 2022
    Assignee: NAMUGA CO., LTD.
    Inventor: Jun Youb Lee
  • Publication number: 20220050229
    Abstract: An embodiment of the present disclosure may provide a microlens array including: an optical substrate configured to define multiple cells; and multiple microlenses distributed on the optical substrate and having angle profiles or tilting profiles, wherein angle profiles of the multiple cells are defined based on the shapes of edges of the cells, and tilting profiles of the multiple cells are defined based on the tilts of the microlenses or the tilt of the optical substrate.
    Type: Application
    Filed: August 4, 2021
    Publication date: February 17, 2022
    Applicant: Namuga Co., Ltd.
    Inventors: Jun Youb LEE, Young Gyu KANG, Jeong Hwa SEO
  • Publication number: 20210382176
    Abstract: An embodiment may provide a method for synchronizing a field of view of a distance measuring device including: a light source including one or more light source elements; and a light diffusion device through which light emitted from the light source passes, wherein the light diffusion device is divided into one or more regions, each of the light source elements of the light source is disposed with an independent region, and the intensity of light transferred from the light source elements is adjustable. The method may include: identifying a field of view (FOV) of a red, green, and blue (RGB) camera; and adjusting, based on a predetermined reference, the field of view of the distance measuring device such that the field of view of the distance measuring device corresponds to the field of view of the RGB camera.
    Type: Application
    Filed: June 2, 2021
    Publication date: December 9, 2021
    Applicant: Namuga Co., Ltd.
    Inventors: Jun Youb LEE, Young Gyu KANG, Jeong Hwa SEO
  • Publication number: 20210288467
    Abstract: An embodiment provides a beam projector module that includes: a light source configured to output light; a substrate configured to support the light source; an optical device configured to reduce the light in terms of intensity output to a predetermined space; a frame configured to space the optical device apart from the light source by a predetermined distance, the frame forming a closed space with the substrate and the optical device; a temperature sensor configured to measure a temperature of the frame; and a processor configured to control an output of the light source. The processor is configured to operate the light source in an eye-safety mode when a temperature drop rate of the frame exceeds a reference value.
    Type: Application
    Filed: June 3, 2021
    Publication date: September 16, 2021
    Applicant: Namuga Co., Ltd.
    Inventors: Jun Youb LEE, Young Gyu KANG, Jeong Hwa SEO
  • Publication number: 20200014170
    Abstract: An embodiment provides a beam projector module that includes: a light source configured to output light; a substrate configured to support the light source; an optical device configured to reduce the light in terms of intensity output to a predetermined space; a frame configured to space the optical device apart from the light source by a predetermined distance, the frame forming a closed space with the substrate and the optical device; a temperature sensor configured to measure a temperature of the frame; and a processor configured to control an output of the light source. The processor is configured to operate the light source in an eye-safety mode when a temperature drop rate of the frame exceeds a reference value.
    Type: Application
    Filed: July 2, 2019
    Publication date: January 9, 2020
    Applicant: Namuga Co., Ltd.
    Inventors: Jun Youb LEE, Young Gyu KANG, Jeong Hwa SEO
  • Publication number: 20190383919
    Abstract: Disclosed is a system including: a beam projector module comprising a light source and an optical device configured to diffuse light output from the light source to reduce an intensity of the light; an image sensor configured to receive reflected light formed by the light reflected from an object; and a signal processing device configured to measure a distance from the object by analyzing a characteristic of the reflected light, wherein the signal processing device operates the beam projector module in an eye-safety mode when the characteristic of the reflected light corresponds to a crack characteristic.
    Type: Application
    Filed: August 30, 2019
    Publication date: December 19, 2019
    Applicant: NAMUGA CO., LTD.
    Inventors: Jun Youb LEE, Ji Soo WON, Jung Ho LEE, Young Gyu KANG, Jeong Hwa SEO
  • Patent number: 10374390
    Abstract: The present disclosure provides a beam projector module including: a PCB on which a cathode wire and an anode wire are positioned; a conductive pad that is made of a conductive material or coated with a conductive material and has one side surface; a first frame that is made of a non-conductive material and has one side surface which is in contact with the PCB; a light source having a cathode electrode and an anode electrode, the cathode electrode being in contact with the other side surface of the conductive pad; the anode electrode being connected to the anode wire through at least one electric wire passing through the opening; a diffuser configured to diffuse a light beam output from the light source; and a second frame configured to support the diffuser so that the diffuser is spaced from the light source by a predetermined distance.
    Type: Grant
    Filed: August 7, 2018
    Date of Patent: August 6, 2019
    Assignee: Namuga Co., Ltd.
    Inventors: Jun Youb Lee, Young Gyu Kang, Jeong Hwa Seo
  • Patent number: 10069275
    Abstract: The present disclosure provides a beam projector module including: a PCB on which a cathode wire and an anode wire are positioned; a conductive pad that is made of a conductive material or coated with a conductive material and has one side surface; a first frame that is made of a non-conductive material and has one side surface which is in contact with the PCB; a light source having a cathode electrode and an anode electrode, the cathode electrode being in contact with the other side surface of the conductive pad; the anode electrode being connected to the anode wire through at least one electric wire passing through the opening; a diffuser configured to diffuse a light beam output from the light source; and a second frame configured to support the diffuser so that the diffuser is spaced from the light source by a predetermined distance.
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: September 4, 2018
    Assignee: Namuga Co., Ltd.
    Inventors: Jun Youb Lee, Young Gyu Kang, Jeong Hwa Seo