Patents by Inventor Ming-Shun Chang

Ming-Shun Chang 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: 20180224632
    Abstract: An optical lens assembly, which has an optical axis, includes, at least one dual molded lens element having two plastic parts with different colors. The dual molded lens element includes a transparent portion and a light absorbing portion, wherein the transparent portion has an optical effective region. The dual molded lens element has an outer diameter surface connecting a first side surface and a second side surface of the dual molded lens element, the transparent portion is arranged from an optical effective region of the dual molded lens element to the outer diameter surface and surrounds the dual molded lens element, thus the transparent portion is a part of the outer diameter surface, and the light absorbing portion is located on one of the first side surface and the second side surface of the dual molded lens element.
    Type: Application
    Filed: April 2, 2018
    Publication date: August 9, 2018
    Inventors: Yeo-Chih HUANG, Ming-Shun CHANG
  • Publication number: 20180210159
    Abstract: An optical lens assembly includes a first lens element and a second lens element. The first lens element has at least one contacting surface. The second lens element has at least one contacting surface. The contacting surface of the first lens element comes in contact with the contacting surface of the second lens element, and at least one air duct is disposed on at least one of the contacting surface of the first lens element and the contacting surface of the second lens element.
    Type: Application
    Filed: March 20, 2018
    Publication date: July 26, 2018
    Inventor: Ming-Shun CHANG
  • Patent number: 9971129
    Abstract: An optical lens assembly, which has an optical axis, includes, at least one dual molded lens element having two plastic parts with different colors. The dual molded lens element includes a transparent portion and a light absorbing portion, wherein the transparent portion has an optical effective region. The dual molded lens element has an outer diameter surface connecting a first side surface and a second side surface of the dual molded lens element, the transparent portion is arranged from an optical effective region of the dual molded lens element to the outer diameter surface and surrounds the dual molded lens element, thus the transparent portion is a part of the outer diameter surface, and the light absorbing portion is located on one of the first side surface and the second side surface of the dual molded lens element.
    Type: Grant
    Filed: May 2, 2017
    Date of Patent: May 15, 2018
    Assignee: LARGAN PRECISION CO., LTD.
    Inventors: Yeo-Chih Huang, Ming-Shun Chang
  • Publication number: 20180129011
    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: Application
    Filed: February 14, 2017
    Publication date: May 10, 2018
    Inventors: Chun-Hua Tsai, Ming-Ta Chou, Ming-Shun Chang
  • Patent number: 9958632
    Abstract: An optical lens assembly includes a first lens element and a second lens element. The first lens element has at least one contacting surface. The second lens element has at least one contacting surface. The contacting surface of the first lens element comes in contact with the contacting surface of the second lens element, and at least one air duct is disposed on at least one of the contacting surface of the first lens element and the contacting surface of the second lens element.
    Type: Grant
    Filed: November 14, 2013
    Date of Patent: May 1, 2018
    Assignee: LARGAN PRECISION CO., LTD.
    Inventor: Ming-Shun Chang
  • Publication number: 20170276903
    Abstract: An imaging lens assembly includes a dual molded lens barrel and at least one lens element. The dual molded lens barrel includes a light transmitting portion and a light absorbing portion. The light transmitting portion includes an effective optical section. The light absorbing portion is connected to the light transmitting portion, wherein a plastic material and a color of the light absorbing portion are different from a plastic material and a color of the light transmitting portion, and the light absorbing portion includes a barrel section. The lens element is disposed in the barrel section.
    Type: Application
    Filed: May 26, 2016
    Publication date: September 28, 2017
    Inventors: Ming-Shun Chang, Chun-Hua Tsai
  • Publication number: 20170235100
    Abstract: An optical lens assembly, which has an optical axis, includes, at least one dual molded lens element having two plastic parts with different colors. The dual molded lens element includes a transparent portion and a light absorbing portion, wherein the transparent portion has an optical effective region. The dual molded lens element has an outer diameter surface connecting a first side surface and a second side surface of the dual molded lens element, the transparent portion is arranged from an optical effective region of the dual molded lens element to the outer diameter surface and to surrounds the dual molded lens element, thus the transparent portion is a part of the outer diameter surface, and the light absorbing portion is located on one of the first side surface and the second side surface of the dual molded lens element.
    Type: Application
    Filed: May 2, 2017
    Publication date: August 17, 2017
    Inventors: Yeo-Chih HUANG, Ming-Shun CHANG
  • Patent number: 9671527
    Abstract: An optical lens assembly, which has an optical axis, includes, at least one dual molded lens element having two plastic parts with different colors. The dual molded lens element includes a transparent portion and a light absorbing portion, wherein the transparent portion has an optical effective region. The dual molded lens element has an outer diameter surface connecting a first side surface and a second side surface of the dual molded lens element, the transparent portion is arranged from an optical effective region of the dual molded lens element to the outer diameter surface and surrounds the dual molded lens element, thus the transparent portion is a part of the outer diameter surface, and the light absorbing portion is located on one of the first side surface and the second side surface of the dual molded lens element.
    Type: Grant
    Filed: July 15, 2015
    Date of Patent: June 6, 2017
    Assignee: LARGAN PRECISION CO., LTD.
    Inventors: Yeo-Chih Huang, Ming-Shun Chang
  • Publication number: 20160313472
    Abstract: An optical lens assembly, which has an optical axis, includes, at least one dual molded lens element having two plastic parts with different colors. The dual molded lens element includes a transparent portion and a light absorbing portion, wherein the transparent portion has an optical effective region. The dual molded lens element has an outer diameter surface connecting a first side surface and a second side surface of the dual molded lens element, the transparent portion is arranged from an optical effective region of the dual molded lens element to the outer diameter surface and surrounds the dual molded lens element, thus the transparent portion is a part of the outer diameter surface, and the light absorbing portion is located on one of the first side surface and the second side surface of the dual molded lens element.
    Type: Application
    Filed: July 15, 2015
    Publication date: October 27, 2016
    Inventors: Yeo-Chih Huang, Ming-Shun Chang
  • Patent number: 9442268
    Abstract: An annular optical element having a central opening includes, in order from the central opening to an outer boundary, an inner annular part, and an outer annular part connected to the inner annular part. A thickness of the annular optical element is uniform.
    Type: Grant
    Filed: April 24, 2014
    Date of Patent: September 13, 2016
    Assignee: LARGAN PRECISION CO., LTD.
    Inventor: Ming-Shun Chang
  • Patent number: 9148916
    Abstract: The present disclosure involves a device. The device includes a rectifier coupled to receive energy from an alternating current (AC) voltage source. A capacitor is coupled to the rectifier. A plurality of LEDs and a current limiter are coupled in series. The current limiter is configured to limit a current through the LEDs. The plurality of LEDs and the current limiter are collectively coupled to the capacitor in parallel. A current controller is coupled to both the capacitor and the current limiter in series. The current controller is configured to control at least a charging current of the capacitor. The device has a first current path during a first period of operation and a second current path during a second period of operation. The capacitor charges during the first period of operation and discharges during the second period of operation.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: September 29, 2015
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Ming-Shun Chang, Ko-Chih Chiu
  • Publication number: 20150234145
    Abstract: An annular optical element having a central opening includes, in order from the central opening to an outer boundary, an inner annular part, and an outer annular part connected to the inner annular part. A thickness of the annular optical element is uniform.
    Type: Application
    Filed: April 24, 2014
    Publication date: August 20, 2015
    Applicant: LARGAN PRECISION CO., LTD.
    Inventor: Ming-Shun CHANG
  • Publication number: 20150098139
    Abstract: An optical lens assembly includes a first lens element and a second lens element. The first lens element has at least one contacting surface. The second lens element has at least one contacting surface. The contacting surface of the first lens element comes in contact with the contacting surface of the second lens element, and at least one air duct is disposed on at least one of the contacting surface of the first lens element and the contacting surface of the second lens element.
    Type: Application
    Filed: November 14, 2013
    Publication date: April 9, 2015
    Applicant: LARGAN PRECISION CO., LTD.
    Inventor: Ming-Shun CHANG
  • Publication number: 20140265892
    Abstract: The present disclosure involves a device. The device includes a rectifier coupled to receive energy from an alternating current (AC) voltage source. A capacitor is coupled to the rectifier. A plurality of LEDs and a current limiter are coupled in series. The current limiter is configured to limit a current through the LEDs. The plurality of LEDs and the current limiter are collectively coupled to the capacitor in parallel. A current controller is coupled to both the capacitor and the current limiter in series. The current controller is configured to control at least a charging current of the capacitor. The device has a first current path during a first period of operation and a second current path during a second period of operation. The capacitor charges during the first period of operation and discharges during the second period of operation.
    Type: Application
    Filed: March 13, 2013
    Publication date: September 18, 2014
    Inventors: Ming-Shun Chang, Ko-Chih Chiu
  • Publication number: 20030098913
    Abstract: A digital swift video controller system that can be used in a wide spreading area. The present system is activated by transmitting digital video camera image to the arena telecom server and then stored in the high capacity image-storing device, such as magnetic disk and CD-Rom. Specialist is then monitoring all these image data in the central control unit and then they are able to transmit the requested image data to user. These image data are transmitted through Asymmetric Digital Subscriber Line (ADSL) offered by the central telecom company in Taiwan upon users personal authorized estate and pin code. By way of transmitting image data, user will be able to view the request images instantly either live or historically on an personal computer providing there is an Asymmetric Digital Subscriber Line (ADSL) connection. This system will enable user to monitoring any image data upon their personal authorized estate and pin code more conveniently and effectively.
    Type: Application
    Filed: November 29, 2001
    Publication date: May 29, 2003
    Applicant: LIGHTING INNOVATION & SERVICES CO., LTD.
    Inventor: Ming-Shun Chang