Patents by Inventor Lawrence J. Gianola

Lawrence J. Gianola 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).

  • Publication number: 20070273844
    Abstract: A exemplary system embodiment for supporting a cantilevered lens assembly positioned in a projection display device includes a first support member and a second support member. The first support member is configured to be coupled to the projection display device and is shaped to receive a portion of the cantilevered lens assembly. The second support member is configured for coupling the cantilevered lens assembly to the projection display device.
    Type: Application
    Filed: May 25, 2006
    Publication date: November 29, 2007
    Inventors: Stephan R. Clark, Lawrence J. Gianola, Franz Jurva, Jon A. Bartman, P. Guy Howard
  • Patent number: 6839095
    Abstract: A multimedia projector (100) includes a single-path frame-sequential color optical system in which light rays emitted by a light source (14) propagate through a color wheel (102) and an optical integrator (16, 120, 122), and are directed toward a transflective polarizing beam splitter (40) that separates them into P-polarized components (76) and S-polarized components (78). The P-polarized components are transmitted toward a reflective LCD (26) in which pixels in a dark state reflect the light rays without a polarization change and return them through the transflective polarizing beam splitter, whereas pixels in a bright state reflect the light rays with a 90° polarization change as S-polarized light rays (112), which are reflected by the transflective polarizing beam splitter toward a projection lens (27).
    Type: Grant
    Filed: May 17, 2002
    Date of Patent: January 4, 2005
    Assignee: InFocus Corporation
    Inventors: Serge Bierhuizen, Lawrence J. Gianola, Benny S. Svardal
  • Publication number: 20040257537
    Abstract: A multimedia projector (100) includes a single-path frame-sequential color optical system in which light rays emitted by a light source (14) propagate through a color wheel (102) and an optical integrator (16, 120, 122), and are directed toward a transflective polarizing beam splitter (40) that separates them into P-polarized components (76) and S-polarized components (78). The P-polarized components are transmitted toward a reflective LCD (26) in which pixels in a dark state reflect the light rays without a polarization change and return them through the transflective polarizing beam splitter, whereas pixels in a bright state reflect the light rays with a 90° polarization change as S-polarized light rays (112), which are reflected by the transflective polarizing beam splitter toward a projection lens (27).
    Type: Application
    Filed: July 22, 2004
    Publication date: December 23, 2004
    Inventors: Serge Bierhuizen, Lawrence J. Gianola, Benny S. Svardal
  • Publication number: 20030214617
    Abstract: A multimedia projector (100) includes a single-path frame-sequential color optical system in which light rays emitted by a light source (14) propagate through a color wheel (102) and an optical integrator (16, 120, 122), and are directed toward a transflective polarizing beam splitter (40) that separates them into P-polarized components (76) and S-polarized components (78). The P-polarized components are transmitted toward a reflective LCD (26) in which pixels in a dark state reflect the light rays without a polarization change and return them through the transflective polarizing beam splitter, whereas pixels in a bright state reflect the light rays with a 90° polarization change as S-polarized light rays (112), which are reflected by the transflective polarizing beam splitter toward a projection lens (27).
    Type: Application
    Filed: May 17, 2002
    Publication date: November 20, 2003
    Inventors: Serge Bierhuizen, Lawrence J. Gianola, Benny S. Svardal
  • Patent number: 6575603
    Abstract: A reflector for projection systems and spot (image projecting) luminaires is molded in separate sections and then assembled into a unitary reflector. Forming the reflector in separate sections reduces the amount of surface contact between the reflector and the mold die which in turn substantially reduces the risk of damage or breakage of the reflector section. Each reflector section includes alignment features to assure correct alignment of the sections upon assembly. The reflector sections are formed with edges that mate with edges of an adjacent reflector section along seams to prevent light from showing through the seams. The mating edges preferably include light-blocking features formed by a geometric shape along the seams.
    Type: Grant
    Filed: December 11, 2000
    Date of Patent: June 10, 2003
    Assignee: InFocus Corporation
    Inventors: Kurt A. Stahl, Lawrence J. Gianola
  • Publication number: 20020071280
    Abstract: A reflector for projection systems and spot (image projecting) luminaires is molded in separate sections and then assembled into a unitary reflector. Forming the reflector in separate sections reduces the amount of contact surfaces between the reflector and the mold die which in turn substantially reduces the risk of damage or breakage of the reflector section. Each reflector section includes alignment features to assure correct alignment of the sections upon assembly. The reflector sections are formed with edges that mate with edges of an adjacent reflector section along seams to prevent light from showing through the seams. The mating edges preferably include light-blocking features formed by a geometric shape along the seams.
    Type: Application
    Filed: December 11, 2000
    Publication date: June 13, 2002
    Inventors: Kurt A. Stahl, Lawrence J. Gianola