Patents by Inventor Claas Andreae

Claas Andreae 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: 6965364
    Abstract: An illumination and modulation device is described, as well as a method for modulating the exposure intensity in the integrating digital screen imaging system (IDSI), comprising a light source, a light modulator, and various devices. The object of the invention is to present a device and a method with which the exposure quality can be optimized using simple means. The object on which the invention is based is attained by the fact that the device comprises at least one device for varying the number of cells of the light modulator used to expose the photosensitive material or by the fact that, in the method according to the invention, the number of cells of the light modulator used to expose the photosensitive material can be varied.
    Type: Grant
    Filed: August 11, 2000
    Date of Patent: November 15, 2005
    Assignees: Basys Print GmbH Systeme fuer die Drueckindustrie, Toyo Ink. Mfg. Co. Ltd.
    Inventors: Stefan Eggers, Claas Andreae
  • Patent number: 6768127
    Abstract: The invention relates to an exposure apparatus, in particular for wavelength-dependent light outcoupling, in which at least one preferably wavelength-dependent mirror layer is located within an exposure beam path of a lamp, which mirror layer is used to divide the beam path into a spectral portion used for exposure, and into an unused spectral portion. The object of the invention is to provide an exposure apparatus and a method with which the quality of exposure can be optimized using simple means. The object on which the invention is based is attained according to the invention by locating a mirror in the beam path of the unused region of the spectrum that reflects the unused spectral range in the direction of a mirror layer, and a portion of this is projected onto a viewing screen for adjustment purposes.
    Type: Grant
    Filed: June 4, 2002
    Date of Patent: July 27, 2004
    Assignees: Basys Print GmbH Systeme fuer Druckindustrie, Toyo Ink. Mfg. Co., Ltd.
    Inventors: Stefan Eggers, Claas Andreae
  • Patent number: 6705228
    Abstract: A method for exposing print media formed as printed plates with the use of UV light from a light source that is modified by a projection unit with respect to direction and/or intensity, the method comprising the steps of in a first process appearing an image of a calculated and stored partial image from the projection unit on the print medium; in a second process positioning the projection unit relative to the print medium by a positioning unit; optimizing joining of partial images into one image by running the first process and the second process in parallel with coordination of the first process and the second process by a higher-level unit via control of lines, and by providing at least one unit in which one or more trigger signals are generated for starting and ending the second process to move the projection unit to a next partial unit, and for the first process for starting and ending an exposure, so that the trigger signals are evaluated by a receiver formed as the higher-level unit.
    Type: Grant
    Filed: March 13, 2002
    Date of Patent: March 16, 2004
    Assignees: Basys Print GmbH Systeme fuer Druckindustrie, Toyo Ink. Mfg. Co., Ltd.
    Inventors: Stefan Eggers, Claas Andreae