Patents by Inventor Hag Chul KIM

Hag Chul KIM 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: 12366738
    Abstract: An optical imaging system includes a first lens group that can move in an optical direction and has negative refractive power; a second lens group that can move in the optical direction and has positive refractive power; and a third lens group that can move in the optical direction and has negative refractive power. The first lens group, the second lens group, and the third lens group include seven lenses in total, and at least one of the seven lenses includes an aspherical surface.
    Type: Grant
    Filed: January 24, 2024
    Date of Patent: July 22, 2025
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Hag Chul Kim, Yong Joo Jo
  • Patent number: 12366734
    Abstract: An optical imaging system includes an optical path folding element, and a lens group including four or more lenses. A rearmost lens disposed closest to an imaging plane in the lens group has positive refractive power, and a rearward lens disposed closest to an object side of the rearmost lens has negative refractive power.
    Type: Grant
    Filed: May 12, 2021
    Date of Patent: July 22, 2025
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Hag Chul Kim, Yong Joo Jo, Phil Ho Jung
  • Publication number: 20250216656
    Abstract: An optical imaging system includes a first lens group, a second lens group, a third lens group, and a fourth lens group sequentially disposed along an optical axis, and each including a plurality of lenses, wherein each of the first lens group and the fourth lens group has a positive refractive power, the optical imaging system further includes an aperture disposed between the third lens group and the fourth lens group, the first lens group, the aperture, and the fourth lens group are fixed, and the second lens group and the third lens group are configured to be movable along the optical axis, the optical imaging system further includes a reflective member including a reflective surface configured to change an optical path of the optical imaging system disposed in front of the first lens group, and the fourth lens group is a lens group disposed closest to the imaging surface.
    Type: Application
    Filed: December 5, 2024
    Publication date: July 3, 2025
    Applicants: Samsung Electro-Mechanics Co., Ltd., Kumoh National Institute of Technology Industry-Academic Cooperation Foundation
    Inventors: Jae Myung RYU, Hag Chul KIM, Yong Joo JO, Phil Ho JUNG
  • Publication number: 20250208381
    Abstract: An optical imaging system includes a first lens having refractive power; a second lens having negative refractive power; a third lens having refractive power; a fourth lens having positive refractive power; and a fifth lens having negative refractive power. The first to fifth lenses are disposed in order from an object side, wherein 3.10<f/IMG HT<3.15 is satisfied, where f is a focal length of the optical imaging system, and IMG HT is half of a diagonal length of an imaging plane.
    Type: Application
    Filed: December 6, 2024
    Publication date: June 26, 2025
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Do Hyeong JANG, Hag Chul KIM, Seong Il CHO
  • Patent number: 12332411
    Abstract: An optical imaging system includes: a first lens group including a plurality of lenses; a second lens group including a plurality of lenses; a first reflecting member disposed on an object side of the first lens group; and a plurality of second reflecting members arranged between the second lens group and an image sensor. One or both of the first lens group and the second lens group is movable along an optical axis, an interval along the optical axis between the first lens group and the second lens group is varied between a first interval and a second interval smaller than the first interval, and as at least one of the first lens group and the second lens group is moved, one or more of the second reflecting members are moved.
    Type: Grant
    Filed: January 31, 2024
    Date of Patent: June 17, 2025
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Phil Ho Jung, Yong Joo Jo, Hag Chul Kim, Tae Yeon Lim
  • Publication number: 20250189768
    Abstract: An optical imaging system includes a first lens group, including one or more lenses, having positive refractive power; a second lens group including a plurality of lenses; and a reflective member, disposed between the first lens group and the second lens group, including an incident surface, a reflective surface, and an emitting surface. The optical imaging system satisfies 1.3<SD1/SDP<1.7, where SD1 is an effective diameter of an object-side surface of a first lens disposed closest to an object side among the one or more lenses of the first lens group, and SDP is a minor-axis length of the incident surface of the reflective member.
    Type: Application
    Filed: October 21, 2024
    Publication date: June 12, 2025
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Seong Il CHO, Do Hyeong JANG, Tae Yeon LIM, Hag Chul KIM
  • Patent number: 12320961
    Abstract: An image capturing lens system includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens sequentially arranged from an object side toward an image side. One or more of the lenses is an aspherical lens made of a glass material, and the sixth lens has positive refractive power.
    Type: Grant
    Filed: December 5, 2023
    Date of Patent: June 3, 2025
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Hag Chul Kim, Kyu Min Chae, Hyuk Joo Kim
  • Publication number: 20250164757
    Abstract: An optical imaging system includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens sequentially disposed in numerical order along an optical axis of the optical imaging system from an object side of the optical imaging system toward an imaging plane of the optical imaging system, wherein the first to seventh lenses are spaced apart from each other along the optical axis, and the optical imaging system satisfies 0.4<L1TR/L7TR<1.9, where L1TR is an overall outer diameter of the first lens, L7TR is an overall outer diameter of the seventh lens, and L1TR and L7TR are expressed in a same unit of measurement.
    Type: Application
    Filed: January 18, 2025
    Publication date: May 22, 2025
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Hag Chul KIM, Eun Chong LEE, Yong Joo JO, Ga Young AN
  • Publication number: 20250155683
    Abstract: An optical imaging system includes a first lens having a positive refractive power and a concave object-side surface, a second lens having a positive refractive power, a third lens having a negative refractive power, a fourth lens having a positive refractive power, and a fifth lens having a positive refractive power and a concave image-side surface. The first through fifth lenses are sequentially disposed in ascending numerical order from an object side of the optical imaging system toward an imaging plane of the optical imaging system.
    Type: Application
    Filed: January 15, 2025
    Publication date: May 15, 2025
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventor: Hag Chul KIM
  • Publication number: 20250155688
    Abstract: An optical imaging system includes a first lens having a concave object-side surface, a second lens, a third lens having a concave image-side surface, a fourth lens having a concave object-side surface, and a fifth lens. The first to fifth lenses are sequentially disposed from an object side toward an imaging plane. The optical imaging system has a total number of five lenses having a refractive power. A radius of curvature of the image-side surface of the third lens is greater than a radius of curvature of an image-side surface of the second lens. 0?|n1?n2|?0.2 and TL/2Y<2.0, where n1 is a refractive index of the first lens, n2 is a refractive index of the second lens, TL is a distance from the object-side surface of the first lens to the imaging plane, and 2Y is a diagonal length of the imaging plane.
    Type: Application
    Filed: January 16, 2025
    Publication date: May 15, 2025
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventor: Hag Chul KIM
  • Patent number: 12298482
    Abstract: An optical imaging system includes a first lens having negative refractive power, a second lens having negative refractive power, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens. The first to seventh lenses are sequentially disposed from an object side toward an image side. The third lens, the fourth lens, the sixth lens, and the seventh lens are formed of plastic, and the first lens, the second lens, and the fifth lens are formed of glass.
    Type: Grant
    Filed: February 6, 2024
    Date of Patent: May 13, 2025
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Hag Chul Kim, Yong Joo Jo, Hwan Soo Park
  • Publication number: 20250147275
    Abstract: A camera module is provided. The camera module includes a first lens having a convex object-side surface; a second lens having a convex object-side surface; a third lens having positive refractive power; a fourth lens having a convex image-side surface; and a fifth lens having a refractive power, wherein the first to fifth lens are sequentially disposed from an object side toward an imaging plane, wherein a focal length of the second lens is within a range of ?10 mm to ?7.0 mm, and wherein 1.0<TTL/f<1.2, where TTL is a distance from the object-side surface of the first lens to the imaging plane and f is a focal length of the lens imaging system.
    Type: Application
    Filed: January 7, 2025
    Publication date: May 8, 2025
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Yong Joo JO, Hag Chul KIM, Hyo Jin HWANG
  • Publication number: 20250102766
    Abstract: An optical imaging system includes a first lens group, including at least one lens disposed on a first optical axis, a second lens group, including at least one lens disposed on a second optical axis, perpendicular to the first optical axis, and a prism disposed between the first lens group and the second lens group to convert a light path from the first optical axis to the second optical axis. A conditional expression 0.20<d(LG1P)/d(PLG2)<0.60 is satisfied, where d(LG1P) is a distance on the first optical axis from an image-side surface of a lens disposed closest to an image side of the first lens group to an incident surface of the prism, and d(PLG2) is a distance on the second optical axis from an exit surface of the prism to an object-side surface of a lens disposed closest to an object side of the second lens group.
    Type: Application
    Filed: May 30, 2024
    Publication date: March 27, 2025
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Do Hyeong JANG, Tae Yeon LIM, Seong Il CHO, Hag Chul KIM
  • Patent number: 12259530
    Abstract: An optical imaging system includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens sequentially disposed in numerical order along an optical axis of the optical imaging system from an object side of the optical imaging system toward an imaging plane of the optical imaging system, wherein the first to seventh lenses are spaced apart from each other along the optical axis, and the optical imaging system satisfies 0.4<L1TR/L7TR<1.9, where L1TR is an overall outer diameter of the first lens, L7TR is an overall outer diameter of the seventh lens, and L1TR and L7TR are expressed in a same unit of measurement.
    Type: Grant
    Filed: March 29, 2023
    Date of Patent: March 25, 2025
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Hag Chul Kim, Eun Chong Lee, Yong Joo Jo, Ga Young An
  • Patent number: 12242040
    Abstract: An optical imaging system includes a first lens having a positive refractive power and a concave object-side surface, a second lens having a positive refractive power, a third lens having a negative refractive power, a fourth lens having a positive refractive power, and a fifth lens having a positive refractive power and a concave image-side surface. The first through fifth lenses are sequentially disposed in ascending numerical order from an object side of the optical imaging system toward an imaging plane of the optical imaging system.
    Type: Grant
    Filed: January 16, 2024
    Date of Patent: March 4, 2025
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventor: Hag Chul Kim
  • Patent number: 12242043
    Abstract: An optical imaging system includes a first lens having a concave object-side surface, a second lens, a third lens having a concave image-side surface, a fourth lens having a concave object-side surface, and a fifth lens. The first to fifth lenses are sequentially disposed from an object side toward an imaging plane. The optical imaging system has a total number of five lenses having a refractive power. A radius of curvature of the image-side surface of the third lens is greater than a radius of curvature of an image-side surface of the second lens. 0?|n1?n2|?0.2 and TL/2Y<2.0, where n1 is a refractive index of the first lens, n2 is a refractive index of the second lens, TL is a distance from the object-side surface of the first lens to the imaging plane, and 2Y is a diagonal length of the imaging plane.
    Type: Grant
    Filed: September 29, 2023
    Date of Patent: March 4, 2025
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventor: Hag Chul Kim
  • Patent number: 12242032
    Abstract: An optical imaging system includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens sequentially disposed in numerical order along an optical axis of the optical imaging system from an object side of the optical imaging system toward an imaging plane of the optical imaging system, wherein the first to seventh lenses are spaced apart from each other along the optical axis, and the optical imaging system satisfies 0.4<L1TR/L7TR<1.9, where L1TR is an overall outer diameter of the first lens, L7TR is an overall outer diameter of the seventh lens, and L1TR and L7TR are expressed in a same unit of measurement.
    Type: Grant
    Filed: August 19, 2021
    Date of Patent: March 4, 2025
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Hag Chul Kim, Eun Chong Lee, Yong Joo Jo, Ga Young An
  • Patent number: 12228791
    Abstract: A camera module is provided. The camera module includes a first lens having a convex object-side surface; a second lens having a convex object-side surface; a third lens having positive refractive power; a fourth lens having a convex image-side surface; and a fifth lens having a refractive power, wherein the first to fifth lens are sequentially disposed from an object side toward an imaging plane, wherein a focal length of the second lens is within a range of ?10 mm to ?7.0 mm, and wherein 1.0<TTL/f<1.2, where TTL is a distance from the object-side surface of the first lens to the imaging plane and f is a focal length of the lens imaging system.
    Type: Grant
    Filed: April 13, 2023
    Date of Patent: February 18, 2025
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Yong Joo Jo, Hag Chul Kim, Hyo Jin Hwang
  • Publication number: 20250044564
    Abstract: An optical imaging system includes a first lens having refractive power, a second lens including a first reflective region formed on an object-side surface of the second lens, a third lens having a second reflective region formed on an image-side surface of the third lens, and a fourth lens having refractive power.
    Type: Application
    Filed: October 24, 2024
    Publication date: February 6, 2025
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Hag Chul KIM, Yong Joo JO
  • Publication number: 20250035891
    Abstract: An optical imaging system includes five lenses in which a first lens includes a positive refractive power and a concave object-side surface, and a second lens includes a positive refractive power and a concave image-side surface. The first to fifth lenses are sequentially disposed from an object side to an image side.
    Type: Application
    Filed: October 10, 2024
    Publication date: January 30, 2025
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventor: Hag Chul KIM