Patents by Inventor Prasad M. Koppolu

Prasad M. Koppolu 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: 5539629
    Abstract: A multi-faceted light reflector has a reflecting surface with a plurality of adjacent facets, a light source placed in a predetermined spatial relationship to the reflecting surface, and an image surface placed in a predetermined spatial relationship to the light source and the reflecting surface. At least one of said facets has a differentially tilted parabolic cross section. The differentially tilted parabolic facet has a continuous and smooth surface with a focal axis having an angle of inclination with respect to the horizontal image surface that changes along the length of the facet.
    Type: Grant
    Filed: May 4, 1995
    Date of Patent: July 23, 1996
    Assignee: Ford Motor Company
    Inventors: Jeyachandrabose Chinniah, Prasad M. Koppolu, Amir M. Fallahi
  • Patent number: 5471371
    Abstract: An illuminator for use with a light source having a light distribution pattern within a solid angle of 2.pi. steradians. The light source comprises or includes a series of LED's or light pipes positioned at or near a focal point of a reflective surface and inclined at an angle to a focal axis of the reflective surface such that all of the light from the light source is collected and distributed by the reflective surface. Whereby the reflective surface is optimized to confine the light output only to the required photometric zones thus maximizing the efficiency of the illuminator.
    Type: Grant
    Filed: January 8, 1993
    Date of Patent: November 28, 1995
    Assignee: Ford Motor Company
    Inventors: Prasad M. Koppolu, Amir Fallahi, Jeyachandrabose Chinniah
  • Patent number: 5365412
    Abstract: A illuminator for use on a vehicle utilizing light from a remote light source. A semi-paraboloidal reflector collects and collimates light from the remote light source which is transmitted to the semi-paraboloidal reflector through a light guide, such as a fiber optic light pipe. Light from the reflector is reflected outward through a plurality of reflective facets to form a light beam.
    Type: Grant
    Filed: January 7, 1993
    Date of Patent: November 15, 1994
    Assignee: Ford Motor Company
    Inventors: Prasad M. Koppolu, Jeyachandrabose Chinniah, Amir Fallah, Mahendra Dassanayake