Patents by Inventor Lien-Chen Chen

Lien-Chen Chen 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).

  • Operating lamp with adjustable light sources capable of generating a light field of a Gaussian distribution
    Patent number: 7562999
    Abstract: An operating lamp includes a center optical system, and a plurality of side optical systems. Each of the optical systems includes a plurality of light sources. Each of the light sources includes a condensing lens and an LED. When the positions of the condensing lens with respect to the LEDs are adjusted, the operating lamp is still able to generate a light field of a substantial Gaussian distribution. Thus the light intensity corresponding to the center of the operating lamp can still be optimized even when the light field is increased or decreased.
    Type: Grant
    Filed: October 11, 2007
    Date of Patent: July 21, 2009
    Assignee: Mediland Enterprise Corporation
    Inventor: Lien-Chen Chen
  • OPERATING LAMP WITH ADJUSTABLE LIGHT SOURCES CAPABLE OF GENERATING A LIGHT FIELD OF A GAUSSIAN DISTRIBUTION
    Publication number: 20080247163
    Abstract: An operating lamp includes a center optical system, and a plurality of side optical systems. Each of the optical systems includes a plurality of light sources. Each of the light sources includes a condensing lens and an LED. When the positions of the condensing lens with respect to the LEDs are adjusted, the operating lamp is still able to generate a light field of a substantial Gaussian distribution. Thus the light intensity corresponding to the center of the operating lamp can still be optimized even when the light field is increased or decreased.
    Type: Application
    Filed: October 11, 2007
    Publication date: October 9, 2008
    Inventor: Lien-Chen Chen