Patents by Inventor Al Ma

Al Ma 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).

  • Light source unit, a light engine having the light source unit and an illuminating apparatus
    Patent number: 9441798
    Abstract: A light source unit of a light engine is disclosed, wherein the light source unit includes a plurality of LED sub light source units each comprising at least one LED and an optical device corresponding to the at least one LED, the optical device is configured to modify a beam from each LED to be an approximately collimated beam.
    Type: Grant
    Filed: June 5, 2012
    Date of Patent: September 13, 2016
    Assignee: OSRAM GMBH
    Inventors: WeiHuang Chen, Al Ma, SiXiong Zeng, Haiqiang Zhong
  • Light source unit, an illuminating device equipped with the light source unit and medical equipment
    Patent number: 9151464
    Abstract: The present invention relates to a light source unit having at least one LED sub light source unit. Each LED sub light source unit includes three types of LEDs: phosphor converted green LED, orange-red LED with a wavelength of 614 nm-622 nm, and blue LED with a wavelength of 460 nm-476 nm. Light generated by the three types of LEDs is mixed to generate white light.
    Type: Grant
    Filed: October 5, 2012
    Date of Patent: October 6, 2015
    Assignee: OSRAM GmbH
    Inventors: Nadir Farchtchian, Al Ma, Nico Morgenbrod
  • LIGHT SOURCE UNIT, A LIGHT ENGINE HAVING THE LIGHT SOURCE UNIT AND AN ILLUMINATING APPARATUS
    Publication number: 20140218916
    Abstract: A light source unit of a light engine is disclosed, wherein the light source unit includes a plurality of LED sub light source units each comprising at least one LED and an optical device corresponding to the at least one LED, the optical device is configured to modify a beam from each LED to be an approximately collimated beam.
    Type: Application
    Filed: June 5, 2012
    Publication date: August 7, 2014
    Applicant: OSRAM GMBH
    Inventors: WeiHuang Chen, Al Ma, SiXiong Zeng, Haiqiang Zhong