Patents by Inventor Haw-Chyn Cheng

Haw-Chyn Cheng 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: 10009528
    Abstract: A camera module with no PCB that instead has a lens actuator/housing that has circuitry on a bottom surface thereof for direct electrical connection to a mobile electronic device. The housing further has a recess formed in the bottom surface thereof to receive an image sensor. The circuitry is three-dimensional in that it includes a first set of contact pads on one planar surface for connection to the mobile electronic device, a second set of contact pads on a planar surface within the recess for connection to the image sensor, and conductive traces that connect each of the contact pads of the first set with an associated one of the contact pads of the second set by having the trace follow a path from the first planar surface, along a intersecting third planar surface to the second planar surface.
    Type: Grant
    Filed: February 24, 2012
    Date of Patent: June 26, 2018
    Assignee: NAN CHANG O-FILM OPTOELECTRONICS TECHNOLOGY LTD
    Inventors: Prebesh Pavithran, Yeow Thiam Ooi, Hung Khin Wong, Haw Chyn Cheng, Khen Ming Goh
  • Patent number: 9028159
    Abstract: A camera module with a lens barrel containing a lens, and a lens carrier that slidably receives the lens barrel. Each of the exterior surface of the lens barrel and the interior surface of the lens carrier include a seating surface formed thereon. One of the exterior surface of the lens barrel and the interior surface of the lens carrier include a plurality of protrusions for controlling the relative position of the lens barrel and the lens carrier. The other of the exterior surface of the lens barrel and the interior surface of the lens carrier include a plurality of channels that are sized and arranged so as to slidably receive the protrusions to allow for the lens barrel to be slid into the lens carrier. The channels also each include a transverse section to allow the lens barrel to be pivoted about an optical axis of the lens barrel.
    Type: Grant
    Filed: May 11, 2012
    Date of Patent: May 12, 2015
    Assignee: Nan Chang O-Film Optoelectronics Technology Ltd
    Inventors: Prebesh Pavithran, Yeow Thiam Ooi, Haw Chyn Cheng, Hung Khin Wong, Giap Chye Toh, Shun Kyo Low
  • Patent number: 8982267
    Abstract: A camera module including a particle trap. The particle trap may be disposed in the camera module and may be operable to prevent particles from obstructing an optical path defined between a lens assembly and an image sensor. The particle trap may include a particle getter to retain particles in contact with the particle trap. The camera module may be operative to move the lens assembly so as to provide focus on the image sensor for objects at various distances from the camera module. The movement of the lens assembly may be a source of particles retained by the particle trap.
    Type: Grant
    Filed: October 10, 2011
    Date of Patent: March 17, 2015
    Assignee: Flextronics AP, LLC
    Inventors: Prebesh Pavithran, Yeow Thiam Ooi, Haw Chyn Cheng, Hung Khin Wong, Giap Chye Toh, Shun Kyo Low
  • Patent number: 8891002
    Abstract: A camera module having a flash that is provided therein. The flash may be an LED light source. The LED may come in a package that is generally rectangular, with the exception that one corner is flattened. The camera module includes a housing that receives the light source, an image sensor, and a lens. The housing includes mating features that receive the LED package, those features including a flattened corner so that the LED package can only be received within the housing when it is properly oriented. The housing also includes electrical terminals for connection to the LED that include springs. When the LED package is properly oriented and received within the housing, contact pads on the LED package and the electrical terminals on the housing are pressed together against the resilient force of the spring.
    Type: Grant
    Filed: February 24, 2012
    Date of Patent: November 18, 2014
    Assignee: DigitalOptics Corporation
    Inventors: Prebesh Pavithran, Yeow Thiam Ooi, Khen Ming Goh, Haw Chyn Cheng
  • Patent number: 8891007
    Abstract: A camera module with a vent in a housing thereof to allow for fluid communication between an interior of the camera module and an exterior of the camera module. A micro-porous membrane filter having a pore size smaller than 10 um is employed to cover the vent so as to reduce the flow of contaminants into the camera module.
    Type: Grant
    Filed: March 6, 2012
    Date of Patent: November 18, 2014
    Assignee: DigitalOptics Corporation
    Inventors: Prebesh Pavithran, Yeow Thiam Ooi, Haw Chyn Cheng, Hung Khin Wong, Giap Chye Toh
  • Patent number: 8858100
    Abstract: A camera module includes a lens system, an image sensor, and an actuator. The actuator is fixed relative to the image sensor, and the actuator moves the lens system relative to the image sensor to achieve focus. Components that move relative to each other result in gaps or spaces between the components, an in particular there is a gap between the lens system and the actuator. Such a gap provides a traveling path for foreign material, or particulates, to enter the camera module and reach the image sensor, or other intermediate optical components between the lens system and the image sensor. A camera contamination reduction apparatus is implemented as a protective membrane that prevents foreign material from reaching the internal optical components through the traveling path.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: October 14, 2014
    Assignee: DigitalOptics Corporation
    Inventors: Prebesh Pavithran, Yeow Thiam Ooi, Haw Chyn Cheng, Hung Khin Wong
  • Patent number: 8797453
    Abstract: A camera module having a liquid crystal shutter that controls the time period during which the image sensor is exposed to light directed into the camera module. The shutter is located within the camera module housing, which may include EMI shielding and may include a lens actuator for moving a movable lens group. The shutter may be located before or after the movable lens group and before or after a fixed lens group that may also be included. The camera module may also include an IR filter for reducing the amount of IR light that reaches the image sensor.
    Type: Grant
    Filed: February 24, 2012
    Date of Patent: August 5, 2014
    Assignee: Digitaloptics Corporation
    Inventors: Prebesh Pavithran, Yeow Thiam Ooi, Haw Chyn Cheng, Hung Khin Wong, Khen Ming Goh
  • Publication number: 20140028898
    Abstract: A camera module includes a lens system, an image sensor, and an actuator. The actuator is fixed relative to the image sensor, and the actuator moves the lens system relative to the image sensor to achieve focus. Components that move relative to each other result in gaps or spaces between the components, an in particular there is a gap between the lens system and the actuator. Such a gap provides a traveling path for foreign material, or particulates, to enter the camera module and reach the image sensor, or other intermediate optical components between the lens system and the image sensor. A camera contamination reduction apparatus is implemented as a protective membrane that prevents foreign material from reaching the internal optical components through the traveling path.
    Type: Application
    Filed: September 27, 2013
    Publication date: January 30, 2014
    Applicant: DigitalOptics Corporation
    Inventors: Prebesh Pavithran, Yeow Thiam Ooi, Haw Chyn Cheng, Hung Khin Wong
  • Publication number: 20130027600
    Abstract: A camera module including a particle trap. The particle trap may be disposed in the camera module and may be operable to prevent particles from obstructing an optical path defined between a lens assembly and an image sensor. The particle trap may include a particle getter to retain particles in contact with the particle trap. The camera module may be operative to move the lens assembly so as to provide focus on the image sensor for objects at various distances from the camera module. The movement of the lens assembly may be a source of particles retained by the particle trap.
    Type: Application
    Filed: October 10, 2011
    Publication date: January 31, 2013
    Applicant: Flextronics AP, LLC
    Inventors: Prebesh Pavithran, Yeow Thiam Ooi, Haw Chyn Cheng, Hung Khin Wong, Giap Chye Toh, Shun Kyo Low
  • Publication number: 20120288272
    Abstract: A camera module with a lens barrel containing a lens, and a lens carrier that slidably receives the lens barrel. Each of the exterior surface of the lens barrel and the interior surface of the lens carrier include a seating surface formed thereon. One of the exterior surface of the lens barrel and the interior surface of the lens carrier include a plurality of protrusions for controlling the relative position of the lens barrel and the lens carrier. The other of the exterior surface of the lens barrel and the interior surface of the lens carrier include a plurality of channels that are sized and arranged so as to slidably receive the protrusions to allow for the lens barrel to be slid into the lens carrier. The channels also each include a transverse section to allow the lens barrel to be pivoted about an optical axis of the lens barrel.
    Type: Application
    Filed: May 11, 2012
    Publication date: November 15, 2012
    Applicant: FLEXTRONICS AP, LLC
    Inventors: Prebesh Pavithran, Yeow Thiam Ooi, Haw Chyn Cheng, Hung Khin Wong, Giap Chye Toh, Shun Kyo Low
  • Publication number: 20120229701
    Abstract: A camera module with a vent in a housing thereof to allow for fluid communication between an interior of the camera module and an exterior of the camera module. A micro-porous membrane filter having a pore size smaller than 10 um is employed to cover the vent so as to reduce the flow of contaminants into the camera module.
    Type: Application
    Filed: March 6, 2012
    Publication date: September 13, 2012
    Applicant: FLEXTRONICS AP, LLC
    Inventors: Prebesh Pavithran, Yeow Thiam Ooi, Haw Chyn Cheng, Hung Khin Wong, Giap Chye Toh
  • Publication number: 20120218458
    Abstract: A camera module having a flash that is provided therein. The flash may be an LED light source. The LED may come in a package that is generally rectangular, with the exception that one corner is flattened. The camera module includes a housing that receives the light source, an image sensor, and a lens. The housing includes mating features that receive the LED package, those features including a flattened corner so that the LED package can only be received within the housing when it is properly oriented. The housing also includes electrical terminals for connection to the LED that include springs. When the LED package is properly oriented and received within the housing, contact pads on the LED package and the electrical terminals on the housing are pressed together against the resilient force of the spring.
    Type: Application
    Filed: February 24, 2012
    Publication date: August 30, 2012
    Applicant: FLEXTRONICS AP, LLC
    Inventors: Prebesh Pavithran, Yeow Thiam Ooi, Khen Ming Goh, Haw Chyn Cheng
  • Publication number: 20120218450
    Abstract: A camera module having a liquid crystal shutter that controls the time period during which the image sensor is exposed to light directed into the camera module. The shutter is located within the camera module housing, which may include EMI shielding and may include a lens actuator for moving a movable lens group. The shutter may be located before or after the movable lens group and before or after a fixed lens group that may also be included. The camera module may also include an IR filter for reducing the amount of IR light that reaches the image sensor.
    Type: Application
    Filed: February 24, 2012
    Publication date: August 30, 2012
    Applicant: FLEXTRONICS AP, LLC
    Inventors: Prebesh Pavithran, Yeow Thiam Ooi, Haw Chyn Cheng, Hung Khin Wong, Khen Ming Goh
  • Publication number: 20120218449
    Abstract: A camera module with no PCB that instead has a lens actuator/housing that has circuitry on a bottom surface thereof for direct electrical connection to a mobile electronic device. The housing further has a recess formed in the bottom surface thereof to receive an image sensor. The circuitry is three-dimensional in that it includes a first set of contact pads on one planar surface for connection to the mobile electronic device, a second set of contact pads on a planar surface within the recess for connection to the image sensor, and conductive traces that connect each of the contact pads of the first set with an associated one of the contact pads of the second set by having the trace follow a path from the first planar surface, along a intersecting third planar surface to the second planar surface.
    Type: Application
    Filed: February 24, 2012
    Publication date: August 30, 2012
    Applicant: FLEXTRONICS AP, LLC
    Inventors: Prebesh Pavithran, Yeow Thiam Ooi, Hung Khin Wong, Haw Chyn Cheng, Khen Ming Goh
  • Patent number: 7057833
    Abstract: An image capture device includes a substrate and an image sensor mounted to a front side of the substrate. A lens module having a light blocking member is mounted to the front side of the substrate so that the light blocking member cooperates with the substrate to substantially prevent light from entering an interior region defined by the lens module and the substrate through a joint defined therebetween. A lens indexing member on the lens module cooperates with a substrate indexing member provided on the substrate to align the lens module with respect to the substrate.
    Type: Grant
    Filed: September 3, 2004
    Date of Patent: June 6, 2006
    Inventors: Yeow-Thiam Ooi, Haw-Chyn Cheng, Gurbir Singh A-L Balwant Singh, Shazli Husni
  • Publication number: 20060050417
    Abstract: An image capture device includes a substrate and an image sensor mounted to a front side of the substrate. A lens module having a light blocking member is mounted to the front side of the substrate so that the light blocking member cooperates with the substrate to substantially prevent light from entering an interior region defined by the lens module and the substrate through a joint defined therebetween. A lens indexing member on the lens module cooperates with a substrate indexing member provided on the substrate to align the lens module with respect to the substrate.
    Type: Application
    Filed: September 3, 2004
    Publication date: March 9, 2006
    Inventors: Yeow-Thiam Ooi, Haw-Chyn Cheng, Gurbir Singh Balwant Singh, Shazli Husni