Patents by Inventor Raymond Fraze

Raymond Fraze 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).

  • Imaging lens arrangement designed for low light conditions
    Patent number: 6754008
    Abstract: Disclosed is an improved lens system for low light applications. This improved low light lens system is designed for any suitable low light application, such as the above described biological imaging application. In one embodiment, a finite conjugate lens system is disclosed. The lens system includes, in order from a camera side to an object side, a first lens group and a second lens group. The first and second lens groups are adapted so that when light is passed from the object side to the image side, a substantially sized region of collimated light is formed between the first and second lens group. Preferably, the first and second lens groups are adapted to demagnify an object at the object side.
    Type: Grant
    Filed: September 17, 2001
    Date of Patent: June 22, 2004
    Assignee: Xenogen Corporation
    Inventors: Edward P. Wallerstein, David Nilson, Bradley W. Rice, Raymond Fraze