Patents by Inventor Ming-Ta Chou

Ming-Ta Chou 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: 20220350105
    Abstract: An imaging lens assembly includes, in order from an object side to an image side, a first lens element and a second lens element. The first lens element includes a first frustum surface and a second frustum surface. The first frustum surface is disposed on a side of the first lens element facing towards the second lens element. The first frustum surface and the second frustum surface are disposed on the same side and coaxial, and the second frustum surface is closer to an optical axis than the first frustum surface to the optical axis. The second lens element includes a first corresponding frustum surface and a second corresponding frustum surface. The first corresponding frustum surface is corresponding to the first frustum surface. The second corresponding frustum surface is corresponding to the second frustum surface.
    Type: Application
    Filed: February 9, 2022
    Publication date: November 3, 2022
    Inventors: Chun-Hua TSAI, Yu-Chen LAI, Ming-Ta CHOU
  • Patent number: 11487107
    Abstract: An annular optical element includes an outer annular surface, an inner annular surface, a first side surface, a second side surface and a plurality of strip-shaped wedge structures. The outer annular surface surrounds a central axis of the annular optical element and includes at least two shrunk portions. The first side surface connects the outer annular surface and the inner annular surface. The second side surface connects the outer annular surface and the inner annular surface, wherein the second side surface is disposed correspondingly to the first side surface. The strip-shaped wedge structures are disposed on the inner annular surface, wherein each of the strip-shaped wedge structures is disposed along a direction from the first side surface towards the second side surface and includes an acute end and a tapered portion connecting the inner annular surface and the acute end.
    Type: Grant
    Filed: May 19, 2020
    Date of Patent: November 1, 2022
    Assignee: LARGAN PRECISION CO., LTD.
    Inventors: Cheng-Feng Lin, Wei-Hung Weng, Ming-Ta Chou
  • Patent number: 11489991
    Abstract: An imaging lens system includes a plastic lens element, a lens barrel and a light-absorbing coating layer. The plastic lens element is accommodated in the lens barrel and has an outer annular surface. The lens barrel includes a plate portion and a lateral wall portion. An optical axis of the imaging lens system passes through a light-passable hole of the plate portion. The lateral wall portion is connected to the plate portion and extends along a direction substantially parallel to the optical axis. The light-absorbing coating layer has an inner surface and an outer surface. The inner surface faces and is fixed on the outer annular surface of the plastic lens element. The outer surface is located opposite to the inner surface and in physical contact with the lateral portion of the lens barrel.
    Type: Grant
    Filed: May 24, 2021
    Date of Patent: November 1, 2022
    Assignee: LARGAN PRECISION CO., LTD.
    Inventors: Jyun-Jia Cheng, Heng Yi Su, Ming-Ta Chou, Chen-Yi Huang
  • Patent number: 11487078
    Abstract: A lens assembly driving apparatus includes a holder, a metal yoke, a carrier, a lens assembly, a magnet set, a coil and at least one elastic element. The metal yoke is coupled with the holder. The carrier is movably disposed in the metal yoke. The carrier includes an object-side portion and at least three inner surfaces. The object-side portion has an object-side central hole. The lens assembly has an optical axis. The optical axis is corresponding to the object-side central hole. The lens assembly is coupled in the carrier. A movement of the lens assembly relative to the holder is according to a movement of the carrier. The magnet set includes only two magnets. The coil surrounds and is fixed at an exterior of the carrier. The elastic element is coupled with the carrier and the holder.
    Type: Grant
    Filed: November 6, 2020
    Date of Patent: November 1, 2022
    Assignee: LARGAN DIGITAL CO., LTD.
    Inventors: Chun-Yi Lu, Te-Sheng Tseng, Ming-Ta Chou
  • Patent number: 11480755
    Abstract: An imaging lens module includes a plastic barrel, an optical lens assembly and a glue material. The plastic barrel includes an outer object-end surface, an outer image-end surface and an inner tube surface. The inner tube surface connects the outer object-end surface and the outer image-end surface, and includes a plurality of parallel inner surfaces. A plurality of stripe structures are disposed on and protruded from at least one of the parallel inner surfaces, wherein the stripe structures are regularly arranged along a circumferential direction of the parallel inner surface. The optical lens assembly includes a plurality of optical elements disposed in the plastic barrel and arranged along the optical axis, wherein an outer annular surface of at least one of the optical elements is disposed correspondingly to the stripe structures. The glue material is applied among the outer annular surface and the stripe structures.
    Type: Grant
    Filed: June 4, 2020
    Date of Patent: October 25, 2022
    Assignee: LARGAN PRECISION CO., LTD.
    Inventors: Chun-Hua Tsai, Ming-Ta Chou, Ming-Shun Chang
  • Publication number: 20220334350
    Abstract: A plastic optical lens assembly includes a first lens element, a second lens element and a cementing glue coating. A first spacing section is located between a first optical effective portion and a first engaging structure. A second optical effective portion is disposed correspondingly to the first optical effective portion. A second spacing section is located between the second optical effective portion and a second engaging structure. The first engaging structure is engaged with the second engaging structure. A reference space is between the first and the second spacing section. The cementing glue coating is at least disposed between the first and the second optical effective portions, and the first and the second lens elements are cemented by the cementing glue coating.
    Type: Application
    Filed: July 4, 2022
    Publication date: October 20, 2022
    Inventors: Hsuan-Chin HUANG, Hsiang-Chi TANG, Ming-Ta CHOU
  • Publication number: 20220334343
    Abstract: An imaging lens assembly driving module includes a lens carrier, a first molded structure, a second molded structure, a driving mechanism and a mechanical member. The lens carrier defines an optical axis. The first molded structure is disposed correspondingly to the lens carrier and includes a first light blocking structure. The second molded structure is coupled to the first molded structure for forming an inner space, the lens carrier is accommodated in the inner space, and the second molded structure includes a second light blocking structure. The driving mechanism is for driving the lens carrier to move along the optical axis. The mechanical member is for connecting the lens carrier and the first molded structure. The first molded structure is coupled to the second molded structure so that the first light blocking structure and the second light blocking structure form a light passing hole.
    Type: Application
    Filed: November 16, 2021
    Publication date: October 20, 2022
    Inventors: Heng-Yi SU, Ming-Ta CHOU, Cheng-Feng LIN, Ming-Shun CHANG
  • Publication number: 20220326470
    Abstract: A plastic lens assembly includes at least two plastic lens elements and at least one cementing glue coating. The plastic lens elements include a first plastic lens element and a second plastic lens element. The first plastic lens element has a first optical effective portion and a first peripheral portion, wherein the first peripheral portion surrounds the first optical effective portion. The second plastic lens element has a second optical effective portion and a second peripheral portion, wherein the second peripheral portion surrounds the second optical effective portion. The cementing glue coating is disposed between the first optical effective portion and the second optical effective portion, and for cementing the first plastic lens element and the second plastic lens element, wherein at least one optical gap is formed between the first optical effective portion and the second optical effective portion.
    Type: Application
    Filed: June 24, 2022
    Publication date: October 13, 2022
    Inventors: Ming-Ta CHOU, Hsiang-Chi TANG, Tzu-Chieh KUO
  • Patent number: 11467366
    Abstract: An imaging lens assembly has an optical axis and includes a plastic barrel, a lens set and a retaining element. The plastic barrel includes a first channel and a second channel. The lens set is disposed in the plastic barrel and includes at least one adjustable lens element, wherein an outer diameter surface of the adjustable lens element includes a plurality of axial rotation structures, each of the axial rotation structures is in a protruding strip shape, and at least one of the axial rotation structures is disposed correspondingly to the second channel of the plastic barrel and exposed. The retaining element is disposed in the plastic barrel and includes an anti-releasing structure, which is disposed correspondingly to the first channel of the plastic barrel to avoid the lens set being released from the plastic barrel.
    Type: Grant
    Filed: July 17, 2020
    Date of Patent: October 11, 2022
    Assignee: LARGAN PRECISION CO., LTD.
    Inventors: Hsiang-Chi Tang, Ming-Ta Chou, Ruei-Yang Luo
  • Patent number: 11467369
    Abstract: A lens assembly module includes a base, a cover, a lens unit, an elastic element, at least two conductive elements, at least one AF coil element and at least two first magnetic elements. The cover is coupled to the base. The lens unit is movably disposed in the cover. The elastic element is coupled to the lens unit. The conductive elements are coupled to the lens unit. The AF coil element is disposed on the lens unit, and two ends of the AF coil element are electrically connected to the conductive elements, respectively. The first magnetic elements are disposed in the cover. A part of each of the extending structures is overlapped along a direction parallel to an optical axis and electrically connected to each conductive element. The AF coil element and the conductive elements are electrically connected by a welding method.
    Type: Grant
    Filed: September 1, 2020
    Date of Patent: October 11, 2022
    Assignee: LARGAN DIGITAL CO., LTD.
    Inventors: Te-Sheng Tseng, Wen-Hung Hsu, Ming-Ta Chou, Hao-Jan Chen
  • Patent number: 11467471
    Abstract: A camera module includes a plastic carrier, an imaging lens assembly, a reflective element and a plurality of auto-focusing elements. The plastic carrier includes an inner portion and an outer portion, wherein an inner space is defined by the inner portion, and the outer portion includes at least one mounting structure. The imaging lens assembly is disposed in the inner space of the plastic carrier. The reflective element is for folding an image light by a reflective surface of the reflective element into the imaging lens assembly. The auto-focusing elements include at least two magnets and at least one wiring element, wherein the auto-focusing elements are for moving the plastic carrier along a second optical axis of the imaging lens assembly, and the magnets or the wiring element can be disposed on the mounting structure of the outer portion.
    Type: Grant
    Filed: February 2, 2021
    Date of Patent: October 11, 2022
    Assignee: LARGAN DIGITAL CO., LTD.
    Inventors: Te-Sheng Tseng, Ming-Ta Chou, Wen-Hung Hsu
  • Publication number: 20220308308
    Abstract: A camera module includes a metal yoke, a holder, a plastic barrel, a plurality of plastic lens elements and a plurality of metal conducting elements. The holder is connected to the metal yoke for forming an inner space. The plastic barrel is movably disposed in the inner space and includes at least one buffering part. The plastic lens elements are disposed in the plastic barrel. The metal conducting elements are at least one leaf spring and a wire element, wherein the metal conducting elements are connected to the plastic barrel. Before the at least one buffering part contacts a contacting part of the at least one leaf spring, there is a gap distance between the at least one buffering part and the contacting part of the at least one leaf spring.
    Type: Application
    Filed: June 14, 2022
    Publication date: September 29, 2022
    Inventors: Te-Sheng TSENG, Ming-Ta CHOU, Wen-Hung HSU
  • Publication number: 20220308309
    Abstract: A lens module with auto-focusing mechanism includes a plastic lens barrel, a lens assembly, an auto-focusing mechanism and a coil regulating structure. The plastic lens barrel includes a front end portion, a rear end portion and an outer side portion, wherein the front end portion includes a front end surface and a front end hole, the rear end portion includes a rear end opening, the outer side portion connects the front end portion and the rear end portion. The lens assembly is disposed in the plastic lens barrel, and includes a plurality of lens elements. The auto-focusing mechanism is connected to the plastic lens barrel, and includes a coil being polygon. The coil regulating structure is located on the outer side portion of the plastic lens barrel, and is integrated with the plastic lens barrel, wherein the coil is connected and positioned to the coil regulating structure.
    Type: Application
    Filed: June 14, 2022
    Publication date: September 29, 2022
    Inventor: Ming-Ta CHOU
  • Publication number: 20220303438
    Abstract: An imaging lens driving module includes a lens carrier, a frame element, a driving mechanism and a metal conductive element. The lens carrier is disposed in the frame element. The driving mechanism includes a metal elastic element, a coil and a magnet assembly. The metal elastic element includes an outer fixing part coupled to the frame element, an inner fixing part coupled to the lens carrier, and an elastic part. The coil is fixed to the lens carrier and disposed corresponding to the magnet assembly. The metal conductive element is coupled to the lens carrier. The metal elastic element further includes an electrically connecting part and a compensating elastic part. The metal conductive element has a corresponsive surface corresponding to and electrically connected to the electrically connecting part. The compensating elastic part is connected to the electrically connecting part and the inner fixing part.
    Type: Application
    Filed: August 10, 2021
    Publication date: September 22, 2022
    Applicant: LARGAN DIGITAL CO.,LTD.
    Inventors: Te-Sheng TSENG, Heng Yi SU, Ming-Ta CHOU, Wen-Hung HSU
  • Patent number: 11442257
    Abstract: A camera module includes an imaging lens system, an image sensor and a plurality of light-folding elements. The imaging lens system is configured to focus imaging light onto an image surface. The image sensor is disposed on the image surface. The plurality of light-folding elements includes at least one image-side light-folding element disposed on an image side of the imaging lens system, and each of the light-folding elements is configured to fold the imaging light from an entrance optical path thereof to an exit optical path thereof. At least one light-shielding mechanism is arranged on at least one of the entrance light path and the exit light path of the at least one image-side light-folding element. The at least one light-shielding mechanism has a minimal opening, and the minimal opening surrounds the imaging light in the at least one of the entrance optical path and the exit optical path.
    Type: Grant
    Filed: December 18, 2019
    Date of Patent: September 13, 2022
    Assignee: LARGAN PRECISION CO., LTD.
    Inventors: Cheng-Feng Lin, Lin An Chang, Ming-Ta Chou
  • Patent number: 11435500
    Abstract: An optical lens assembly has a central axis and includes at least one dual molded lens element. The dual molded lens element includes a light transmitting portion and a light absorbing portion, wherein the light transmitting portion includes an optical effective region and a lens peripheral region, and the lens peripheral region surrounds the optical effective region. The light absorbing portion surrounds the optical effective region. The light transmitting portion and the light absorbing portion are made of different plastic materials with different colors, and are integrally formed by an injection molding. The light transmitting portion or the light absorbing portion includes a plurality of annular convex structures, and the annular convex structures surround the central axis.
    Type: Grant
    Filed: December 2, 2019
    Date of Patent: September 6, 2022
    Assignee: LARGAN PRECISION CO., LTD.
    Inventors: Ming-Ta Chou, Ming-Shun Chang
  • Patent number: 11435546
    Abstract: A camera driving module includes: a base including a central opening; a casing disposed on the base and including an opening hole corresponding to the central opening; a lens unit movably disposed on the casing; and a focus driving part. The focus driving part includes a carrier, an AF coil element, at least two permanent magnets and a Hall element. The carrier is disposed on the lens unit and movable in a direction parallel to an optical axis. The AF coil element is fixed to the base and faces toward the carrier. The permanent magnets are fixed on one side of the carrier facing toward the base and disposed opposite to each other about the optical axis. The Hall element faces toward a corresponding surface of one of the permanent magnets. The AF coil element and the corresponding surfaces are arranged in the direction parallel to the optical axis.
    Type: Grant
    Filed: November 18, 2019
    Date of Patent: September 6, 2022
    Assignee: LARGAN DIGITAL CO., LTD.
    Inventors: Te-Sheng Tseng, Ming-Ta Chou, Wen-Hung Hsu
  • Publication number: 20220276460
    Abstract: An imaging lens assembly includes a plastic barrel and a lens set, and the lens set is disposed in the plastic barrel. The plastic barrel includes an object-side outer surface, a first inner surface and a second inner surface. The lens set has an optical axis, and includes, in order from an object side to an image side thereof, at least one plastic lens element and a spacer. A light-absorbing coating is disposed on the plastic lens element. The spacer includes an object-side connecting surface and a relative surface. When the object-side connecting surface is connected with a neighboring object-side optical element, the relative surface is out of touch with the neighboring object-side optical element. There is an overlap between the second inner surface and the relative surface along a direction parallel to the optical axis.
    Type: Application
    Filed: May 20, 2022
    Publication date: September 1, 2022
    Inventors: Cheng-Feng LIN, Ming-Ta CHOU
  • Patent number: 11431883
    Abstract: A camera module includes an imaging lens assembly, an image sensor, a first reflecting member and a first driving apparatus. The imaging lens assembly is for converging an imaging light on an image surface. The image sensor is disposed on the image surface. The first reflecting member is located on an image side of the imaging lens assembly, the first reflecting member is for folding the imaging light, and has a first translational degrees of freedom. The first reflecting member is assembled on the first driving apparatus, and the first driving apparatus is for driving the first reflecting member moving along the first translational degrees of freedom.
    Type: Grant
    Filed: November 13, 2020
    Date of Patent: August 30, 2022
    Assignee: LARGAN DIGITAL CO., LTD.
    Inventors: Lin-An Chang, Ming-Ta Chou
  • Publication number: 20220269043
    Abstract: An imaging lens set includes three plastic lens elements, which are a first lens element, a second lens element and a third lens element, and a light blocking sheet. The first lens element includes a first flat abutting portion and a first conical surface. The second lens element includes a second flat abutting portion, a second conical surface, a fourth flat abutting portion and a fourth conical surface. The third lens element includes a third flat abutting portion and a third conical surface. The first flat abutting portion is abutted with the second flat abutting portion, the first conical surface contacts with the second conical surface, and the third conical surface contacts with the fourth conical surface. The light blocking sheet is abutted with the third flat abutting portion and the fourth flat abutting portion, respectively.
    Type: Application
    Filed: May 13, 2022
    Publication date: August 25, 2022
    Inventors: Cheng-Feng LIN, Ming-Ta CHOU