Patents by Inventor Chun-Shen Chiang

Chun-Shen Chiang 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: 7980738
    Abstract: A multi-source shadowless operating lamp is disclosed, which includes a central base, a link element received in the central base, and a plurality of spotlights mounted on a peripheral of the central base and spaced a distance apart from each other. A light field is defined below the central base and extends perpendicular to the central base. Each spotlight defines a light focus spot through the light field. The focus spots exactly pass the same height in the light field. Each spotlight includes a lamp shell connecting with the central base, a dissipation substrate accommodated in the lamp shell, and a plurality of LED sets. The LED sets at different positions respectively cast light to the focus spot of the spotlight. An angle between the dissipation substrate and the light shell is adjustable to change position of the focus spot of the spotlight relative to the light field.
    Type: Grant
    Filed: October 16, 2009
    Date of Patent: July 19, 2011
    Assignee: Mediland Enterprise Corporation
    Inventor: Chun-Shen Chiang
  • Publication number: 20110090707
    Abstract: A multi-source shadowless operating lamp is disclosed, which includes a central base, a link element received in the central base, and a plurality of spotlights mounted on a peripheral of the central base and spaced a distance apart from each other. A light field is defined below the central base and extends perpendicular to the central base. Each spotlight defines a light focus spot through the light field. The focus spots exactly pass the same height in the light field. Each spotlight includes a lamp shell connecting with the central base, a dissipation substrate accommodated in the lamp shell, and a plurality of LED sets. The LED sets at different positions respectively cast light to the focus spot of the spotlight. An angle between the dissipation substrate and the light shell is adjustable to change position of the focus spot of the spotlight relative to the light field.
    Type: Application
    Filed: October 16, 2009
    Publication date: April 21, 2011
    Inventor: Chun-Shen CHIANG