Patents by Inventor Min-Che Li

Min-Che 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: 20230054047
    Abstract: A purge controlling system includes a purge module and a control module. The purge module is arranged in the load port and is electrically connected with the control module. The purge module includes an air curtain unit, a flow control unit and a sensing unit. The control module controls the purge module to provide adequate gas flow of purge gas into the air curtain unit and form a gas curtain according to the displacement value of the door assembly.
    Type: Application
    Filed: August 10, 2022
    Publication date: February 23, 2023
    Inventors: CHEN-WEI KU, HAN-CHENG HU, MIN-CHE LI
  • Patent number: 9291750
    Abstract: This invention provides a calibration method and a corresponding apparatus for optical imaging lens system with double optical paths. The apparatus for optical imaging lens system with double optical paths comprises a first optical subsystem, a second optical subsystem and a calibration module. The calibration module receives a first image data from the first optical subsystem and a second image data from the second optical subsystem. The calibration module calibrates the first image data according to at least one selected optical parameter of the second optical subsystem, and calibrates the second image data according to at least one selected optical parameter of the first optical subsystem. The selected optical parameters of the first optical subsystem and the second optical subsystem are different.
    Type: Grant
    Filed: May 22, 2014
    Date of Patent: March 22, 2016
    Assignee: LARGAN PRECISION CO., LTD.
    Inventors: En Ping Lin, Shing Chia Chen, Min Che Li
  • Patent number: 9106901
    Abstract: An imagery axle turning method for stereo vision and an apparatus thereof. The method turns an imagery axle of a stereo vision apparatus to capture images, and constructs a 3D image from the captured 2D images. The imagery axle turning method is realized by rotating the imagery axles of the first lens unit and second lens unit to an angle ?, so as to have different aspect ratios for the first image and second image. Thereby, the 3D image formed from the stereo vision reconstruction steps can achieve a user's expectation of capturing images with an appropriate aspect ratio. This invention also provides specific stereo vision apparatus corresponding to various applications by the imagery axle turning method.
    Type: Grant
    Filed: August 26, 2011
    Date of Patent: August 11, 2015
    Assignee: Largan Precision Co., Ltd.
    Inventors: Shing-Chia Chen, Min-Che Li, Huang-Long Lin
  • Patent number: 8908014
    Abstract: The present invention provides an optical imaging lens system with double optical paths, comprising: the first optical subsystem; the second optical subsystem having a back focal length equal to that of the first optical subsystem; an optical path selector selectively having a light reflection state or a light passing state; the first reflector set disposed at an image side of the first optical subsystem for directing light from the first optical subsystem to the optical path selector; and the second reflector set disposed at an image side of the second optical subsystem for directing light from the second optical subsystem to the optical path selector. In the present invention, the optical path selector can be controlled to have the light reflection state or the light passing state selectively, so that an image coming from the first optical subsystem or from the second optical subsystem is captured.
    Type: Grant
    Filed: January 19, 2011
    Date of Patent: December 9, 2014
    Assignee: Largan Precision Co., Ltd.
    Inventors: Yen Ting Yeh, Min Che Li, Shing Chia Chen
  • Publication number: 20140253739
    Abstract: This invention provides a calibration method and a corresponding apparatus for optical imaging lens system with double optical paths. The apparatus for optical imaging lens system with double optical paths comprises a first optical subsystem, a second optical subsystem and a calibration module. The calibration module receives a first image data from the first optical subsystem and a second image data from the second optical subsystem. The calibration module calibrates the first image data according to at least one selected optical parameter of the second optical subsystem, and calibrates the second image data according to at least one selected optical parameter of the first optical subsystem. The selected optical parameters of the first optical subsystem and the second optical subsystem are different.
    Type: Application
    Filed: May 22, 2014
    Publication date: September 11, 2014
    Applicant: LARGAN PRECISION CO., LTD.
    Inventors: En Ping Lin, Shing Chia Chen, Min Che Li
  • Patent number: 8773538
    Abstract: This invention provides a calibration method and a corresponding apparatus for optical imaging lens system with double optical paths. The apparatus for optical imaging lens system with double optical paths comprises a first optical subsystem, a second optical subsystem and a calibration module. The calibration module receives a first image data from the first optical subsystem and a second image data from the second optical subsystem. The calibration module calibrates the first image data according to at least one selected optical parameter of the second optical subsystem, and calibrates the second image data according to at least one selected optical parameter of the first optical subsystem. The selected optical parameters of the first optical subsystem and the second optical subsystem are different.
    Type: Grant
    Filed: April 5, 2011
    Date of Patent: July 8, 2014
    Assignee: Largan Precision Co., Ltd.
    Inventors: En Ping Lin, Shing Chia Chen, Min Che Li
  • Publication number: 20120212584
    Abstract: An imagery axle turning method for stereo vision and an apparatus thereof. The method turns an imagery axle of a stereo vision apparatus to capture images, and constructs a 3D image from the captured 2D images. The imagery axle turning method is realized by rotating the imagery axles of the first lens unit and second lens unit to an angle ?, so as to have different aspect ratios for the first image and second image. Thereby, the 3D image formed from the stereo vision reconstruction steps can achieve a user's expectation of capturing images with an appropriate aspect ratio. This invention also provides specific stereo vision apparatus corresponding to various applications by the imagery axle turning method.
    Type: Application
    Filed: August 26, 2011
    Publication date: August 23, 2012
    Applicant: LARGAN PRECISION CO.
    Inventors: Shing-Chia Chen, Min-Che Li, Huang-Long Lin
  • Publication number: 20120147196
    Abstract: This invention provides a calibration method and a corresponding apparatus for optical imaging lens system with double optical paths. The apparatus for optical imaging lens system with double optical paths comprises a first optical subsystem, a second optical subsystem and a calibration module. The calibration module receives a first image data from the first optical subsystem and a second image data from the second optical subsystem. The calibration module calibrates the first image data according to at least one selected optical parameter of the second optical subsystem, and calibrates the second image data according to at least one selected optical parameter of the first optical subsystem. The selected optical parameters of the first optical subsystem and the second optical subsystem are different.
    Type: Application
    Filed: April 5, 2011
    Publication date: June 14, 2012
    Applicant: LARGAN PRECISION CO., LTD.
    Inventors: En Ping Lin, Shing Chia Chen, Min Che Li
  • Publication number: 20120086787
    Abstract: The present invention provides an optical imaging lens system with double optical paths, comprising: the first optical subsystem; the second optical subsystem having a back focal length equal to that of the first optical subsystem; an optical path selector selectively having a light reflection state or a light passing state; the first reflector set disposed at an image side of the first optical subsystem for directing light from the first optical subsystem to the optical path selector; and the second reflector set disposed at an image side of the second optical subsystem for directing light from the second optical subsystem to the optical path selector. In the present invention, the optical path selector can be controlled to have the light reflection state or the light passing state selectively, so that an image coming from the first optical subsystem or from the second optical subsystem is captured.
    Type: Application
    Filed: January 19, 2011
    Publication date: April 12, 2012
    Applicant: LARGAN PRECISION CO., LTD.
    Inventors: Yen Ting Yeh, Min Che Li, Shing Chia Chen
  • Patent number: 7311453
    Abstract: A lens tube and a mounting base thereof comprise a lens tube for reception of a lens array and a mounting base for accommodation of an image sensor. On an outer periphery of the lens tube is formed a first conical surface, and in the mounting base is formed a concave portion. A second conical surface is formed in the concave portion for mating with the first conical surface of the lens tube. The first conical surface of the lens tube and the second conical surface of the mounting base can cooperate with each other, so as to prevent dust contamination and to make the central axis aligned with the optical axis.
    Type: Grant
    Filed: December 19, 2005
    Date of Patent: December 25, 2007
    Assignee: Largan Precision Co., Ltd.
    Inventor: Min-Che Li
  • Publication number: 20070157837
    Abstract: A method and apparatus for applying ink to the inactive area of a lens, the method comprises the steps of: A, positioning lens; B, preparing stamping member; C, coating and inking by moving the stamping member linearly; D, retracting the stamping member; and E, taking out the lens. The apparatus comprises a stamping member and a positioning member. The stamping member moves linearly back and forth relative to the positioning member, on the surface of the stamping member is formed an inking surface coated with ink. The shape, the area, the location and the angle of the inking surface fit the inactive area of the lens to be inked. The inking surface of the stamping member can contact the inactive area of the lens, so as to enable the inactive area to be fully coated with ink.
    Type: Application
    Filed: December 29, 2005
    Publication date: July 12, 2007
    Inventor: Min-Che Li
  • Publication number: 20070152146
    Abstract: An assembling structure for a solid image pickup device in accordance with the present invention is mounted on a substrate and comprises a mounting base, a lens tube and an adhesive material. The adhesive material is arranged on the bottom surface of an engaging recess of the mounting base. When an annular engaging portion of the lens tube is screwed in the engaging recess of the mounting base, the adhesive material is located beside the inner periphery of the annular engaging portion of the lens tube, so that powder produced when screwing the lens tube relative to the mounting base will be adhered to the adhesive material, thus preventing the powder from falling onto the protective piece.
    Type: Application
    Filed: January 3, 2006
    Publication date: July 5, 2007
    Inventor: Min-Che Li
  • Publication number: 20070146908
    Abstract: A focal length compensation structure for a lens assembly is used in a portable electronic product having an image taking lens assembly. The lens assembly comprises mounting seat, lens tube and expandable and shrinkable member, the expandable and shrinkable member is disposed between the portable electronic product and the mounting seat, between the mounting seat and the annular connecting portion of the lens tube, and/or between lenses of the lens array. The focal length of the lens array of the lens assembly will change with the outside temperature changes, plus the expansion of the mounting seat and the lens tube, the actual variation of the focal length of the lens assembly. Expansion and shrinkage can be calculated precisely to compensate the distance between the focus of the imaging focal length of the lens array and the image plane, enabling the imaging focal length to be dropped on the image plane precisely, thus forming a clear image.
    Type: Application
    Filed: December 24, 2005
    Publication date: June 28, 2007
    Inventor: Min-Che Li
  • Publication number: 20070139939
    Abstract: A lens tube and a mounting base thereof comprise a lens tube for reception of a lens array and a mounting base for accommodation of an image sensor. On an outer periphery of the lens tube is formed a first conical surface, and in the mounting base is formed a concave portion. A second conical surface is formed in the concave portion for mating with the first conical surface of the lens tube. The first conical surface of the lens tube and the second conical surface of the mounting base can cooperate with each other, so as to prevent dust contamination and to make the central axis aligned with the optical axis.
    Type: Application
    Filed: December 19, 2005
    Publication date: June 21, 2007
    Inventor: Min-Che Li
  • Publication number: 20070139795
    Abstract: An image lens assembly comprises a lens array and a transparent material. In the lens array are defined a plurality of spaces. The transparent material is injected into the spaces until the spaces are full of the transparent material, and the transparent material will be solidified after being injected into the interval, so that both lateral surfaces of the transparent material will press closely against the lenses. Therefore, the transparent material can enable the respective lenses to be positioned more firmly.
    Type: Application
    Filed: December 19, 2005
    Publication date: June 21, 2007
    Inventor: Min-Che Li
  • Patent number: 7173773
    Abstract: A whole group focusing structure comprises a lens track cylinder, a first lens group, a second lens group, and a drive motor is used to rotate and move the lens track cylinder, so as to carry out focus between the first and second lens groups. A slant parallel section is formed in each of the two guiding tracks at the end of the guiding block, and the slant parallel section is used to perform focus. The whole group focusing structure only needs a set of drive and control system to perform focus and zoom, therefore, the present invention is a high quality whole group focusing structure that can meet market needs.
    Type: Grant
    Filed: January 13, 2006
    Date of Patent: February 6, 2007
    Assignee: Largan Precision Co., Ltd.
    Inventor: Min-Che Li