Patents by Inventor Shinan Qian

Shinan Qian 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).

  • Beam splitter and method for generating equal optical path length beams
    Patent number: 6611379
    Abstract: The present invention is a beam splitter for splitting an incident beam into first and second beams so that the first and second beams have a fixed separation and are parallel upon exiting. The beam splitter includes a first prism, a second prism, and a film located between the prisms. The first prism is defined by a first thickness and a first perimeter which has a first major base. The second prism is defined by a second thickness and a second perimeter which has a second major base. The film is located between the first major base and the second major base for splitting the incident beam into the first and second beams. The first and second perimeters are right angle trapezoidal shaped. The beam splitter is configured for generating equal optical path length beams.
    Type: Grant
    Filed: January 25, 2001
    Date of Patent: August 26, 2003
    Assignee: Brookhaven Science Associates LLC
    Inventors: Shinan Qian, Peter Takacs
  • Beam splitter and method for generating equal optical path length beams
    Publication number: 20020135779
    Abstract: The present invention is a beam splitter for splitting an incident beam into first and second beams so that the first and second beams have a fixed separation and are parallel upon exiting. The beam splitter includes a first prism, a second prism, and a film located between the prisms. The first prism is defined by a first thickness and a first perimeter which has a first major base. The second prism is defined by a second thickness and a second perimeter which has a second major base. The film is located between the first major base and the second major base for splitting the incident beam into the first and second beams. The first and second perimeters are right angle trapezoidal shaped. The beam splitter is configured for generating equal optical path length beams.
    Type: Application
    Filed: January 25, 2001
    Publication date: September 26, 2002
    Inventors: Shinan Qian, Peter Takacs