Patents Assigned to Nec Viewtechnology, Inc.
  • Patent number: 7006310
    Abstract: A color projection type display apparatus having a light source, a color wheel driven to rotate and having a plurality of types of color filters, different in characteristics from one another, disposed on the same surface thereof to transmit a particular component of light from the light source and to reflect the remaining components, a reflector for reflecting a component of light impinging on the color wheel and reflected by one type of the color filters to again direct the component back to another type of color filters, an image display device having a plurality of areas each irradiated with particular component of light transmitted by the color filters, respectively, to display an image, and a projection lens for projecting the image displayed by the image display device onto a screen.
    Type: Grant
    Filed: August 13, 2004
    Date of Patent: February 28, 2006
    Assignee: Nec Viewtechnology, Inc.
    Inventors: Hiroo Karube, Mikio Sakamoto
  • Publication number: 20050046981
    Abstract: A color projection type display apparatus comprises a light source, a color wheel driven to rotate and having a plurality of types of color filters, different in characteristics from one another, disposed on the same surface thereof to transmit a particular component of light from the light source and to reflect the remaining components, a reflector for reflecting a component of light impinging on the color wheel and reflected by one type of the color filters to again direct the component back to another type of color filters, an image display device having a plurality of areas each irradiated with particular component of light transmitted by the color filters, respectively, to display an image, and a projection lens for projecting the image displayed by the image display device onto a screen.
    Type: Application
    Filed: August 13, 2004
    Publication date: March 3, 2005
    Applicant: NEC VIEWTECHNOLOGY, INC.
    Inventors: Hiroo Karube, Mikio Sakamoto