Picture Reproducers (epo) Patents (Class 348/E9.012)
  • Patent number: 9558541
    Abstract: Disclosed herein is a method of correcting an image overlap area. More specifically, the method includes steps of identifying an overlap area between images projected by a plurality of projectors, determining a difference in at least one of brightness and color between the overlap area and non-overlap area of images, analyzing RGB information of a projected image, and controlling brightness or color of an image projected on the overlap area or the non-overlap area in response to the RGB information.
    Type: Grant
    Filed: December 2, 2014
    Date of Patent: January 31, 2017
    Assignee: CJ CGV CO., LTD.
    Inventors: Hwan Chul Kim, Su Ryeon Kang, Jihyung Kang
  • Patent number: 7967445
    Abstract: An image projecting apparatus enables the formation of a projected image faithful to original image information by reducing degradation in the projected image due to decrease in imaging performance of a projection optical system. Image information is processed by an image processing device, which includes a first and a second image processor. A light modulating device modulates a flux of light emitted by an illumination optical system based on the processed image information. The modulated flux of light is projected on a screen by a projection optical system. If the image information processed by the first image processor in a pixel region is not within a representable modulation range of the light modulating device, the image information is processed by the second image processor.
    Type: Grant
    Filed: November 13, 2007
    Date of Patent: June 28, 2011
    Assignee: Ricoh Company, Ltd.
    Inventors: Yukiko Hamano, Ryosuke Kasahara, Toshiyuki Kawasaki