公开(公告)号：EP1374557A2

公开(公告)日：2004-01-02

申请号：EP02719326.7

申请日：2002-03-21

申请人： POLAROID CORPORATION

发明人： BYBELL, Daniel, P. ,  THORNTON, Jay, E. ,  SCHUH, Dana, F.

IPC分类号： H04N1/40

CPC分类号： H04N1/4056

摘要： In one aspect of the present invention, a method is provided for producing a halftone of a source image. The halftone includes halftone pixels. The halftone pixels are suitable for containing halftone dots. The method selects glyphs corresponding to intensities of regions (e.g., pixels) in the source image. The glyphs contain one or more halftone dots. The method located halftone dots within the halftone pixels such that for at least one pair of halftone dots contained within a pair of halftone pixels sharing a common boundary, the halftone dots in the pair of halftone pixels extend in opposite directions form the common boundary.

公开(公告)号：EP1392514A2

公开(公告)日：2004-03-03

申请号：EP02739274.5

申请日：2002-05-16

申请人： POLAROID CORPORATION

发明人： BOUCHARD, Alain ,  BUSCH, Brian, D. ,  BYBELL, Daniel, P. ,  DEYOUNG, Anemarie ,  LAWRENCE, Sandra, B. ,  REISCH, Michael, L. ,  SAQUIB, Suhail, S. ,  SCHUH, Dana, F. ,  TELFER, Stephen, J. ,  THORNTON, Jay, E. ,  VETTERLING, William, T. ,  VIOLA, Michael, S.

IPC分类号： B41J2/36 ,  H04N1/00 ,  G07F17/26

CPC分类号： B41J2/3555 ,  B41J2/325 ,  B41J2/36 ,  G07F17/26 ,  H04N1/00132 ,  H04N1/00167 ,  H04N1/00169 ,  H04N1/00188

摘要： A thermal printer is disclosed which includes a plurality of thermal print heads, each of the plurality of thermal print heads being operable to print a distinct one of a plurality of colors. The plurality of thermal print heads may print output at a plurality of spatial resolutions. The thermal printer may include dot size varying perceived levels of color printed by the thermal printer by varying sizes of dots printed by the plurality of thermal print heads. The printer may perform various image processing steps on an image to be printed, such as tone scale adjustment, thermal history control, and common mode voltage correction, to improve the perceived quality of the printed image. The thermal printer may be incorporated into a digital photo-printing vending machine for printing images provided by a customer.

公开(公告)号：EP0767933A1

公开(公告)日：1997-04-16

申请号：EP95922945.0

申请日：1995-06-02

申请人： POLAROID CORPORATION

发明人： MACCOLLUM, George, O. ,  BOUCHARD, Peter, A. ,  SCHUH, Dana, F. ,  ROSENTHAL, Richard, A. ,  SILVEIRA, Frank, S. ,  JOSEPHSON, Donald, G.

IPC分类号： B41M5 ,  B29C63 ,  B65H41 ,  G03F7

CPC分类号： B29C63/0013 ,  G03F7/343 ,  Y10T156/195

摘要： Methods and apparatus for peeling a laminate containing image media wherein the leading edge portion of the laminate is struck by beater blades to initially separate the leading edge portion of one layer from the laminate. The separated leading edge portion is then transported into a nip defined by a peel surface (70) and a lower peel roll (68) after which the leading edge portion is bent about the peel surface (70) by a folder (91) driven by a linkage mechanism. While the leading edge portion of the laminate is bent, one layer is held by a vacuum device (84) while the remainder of the laminate returns to its path of travel under its own resiliency. The separated layer is then peeled from the laminate by take-away rolls while guided by the peel surface. The remainder of the laminate is guided by a deflector roll to move along the path at a predetermined angle while the layer is being peeled. In one method, the layer is peeled at an angle to the longitudinal direction of the laminate. This is effected by orienting the peel surface and the lower peel roll (68) with their axes extending at an angle to the path of travel of the laminate. Further, a method includes having the layer peeled at an angle other than the screen angle of the imaged and non-imaged portions of the laminate. A small diameter peel surface (70) is used for effective peeling.

公开(公告)号：EP1392514B1

公开(公告)日：2005-09-07

申请号：EP02739274.5

申请日：2002-05-16

申请人： POLAROID CORPORATION

发明人： BOUCHARD, Alain ,  BUSCH, Brian, D. ,  BYBELL, Daniel, P. ,  DEYOUNG, Anemarie ,  LAWRENCE, Sandra, B. ,  REISCH, Michael, L. ,  SAQUIB, Suhail, S. ,  SCHUH, Dana, F. ,  TELFER, Stephen, J. ,  THORNTON, Jay, E. ,  VETTERLING, William, T. ,  VIOLA, Michael, S.

IPC分类号： B41J2/36 ,  H04N1/00 ,  G07F17/26

CPC分类号： B41J2/3555 ,  B41J2/325 ,  B41J2/36 ,  G07F17/26 ,  H04N1/00132 ,  H04N1/00167 ,  H04N1/00169 ,  H04N1/00188

摘要： A thermal printer is disclosed which includes a plurality of thermal print heads, each of the plurality of thermal print heads being operable to print a distinct one of a plurality of colors. The plurality of thermal print heads may print output at a plurality of spatial resolutions. The thermal printer may include dot size varying perceived levels of color printed by the thermal printer by varying sizes of dots printed by the plurality of thermal print heads. The printer may perform various image processing steps on an image to be printed, such as tone scale adjustment, thermal history control, and common mode voltage correction, to improve the perceived quality of the printed image. The thermal printer may be incorporated into a digital photo-printing vending machine for printing images provided by a customer.

公开(公告)号：EP0815495A1

公开(公告)日：1998-01-07

申请号：EP96909802.0

申请日：1996-03-21

申请人： POLAROID CORPORATION

发明人： SILVEIRA, Frank, S. ,  MORSE, John, B. ,  SCHUH, Dana, F.

IPC分类号： B29C63 ,  B32B43 ,  B65H41 ,  G03F7

CPC分类号： B32B43/006 ,  B29C63/0013 ,  G03F7/343 ,  Y10T156/1132 ,  Y10T156/1944

摘要： Method and apparatus for peeling an image media-laminate to remove a throw-away layer (16) from a keeper layer (14). The laminate is fed through a nip defined by upper and lower rolls and then the laminate is bent upwardly about a surface on the upper roll by an upwardly moving bar (91). One side of the bent laminate opposite the bar is held by vacuum adjacent a free edge of the laminate and then the bar is lowered during which a spring element (2) on the bar deflects the free edge of the laminate to separate the layers due to differences in their stiffness. The lowering of the bar permits the keeper layer (14) to descend as it separates from the throw-away layer (16) which is released from the vacuum and continuously peeled by take-away rollers.

公开(公告)号：EP0513257A1

公开(公告)日：1992-11-19

申请号：EP91918968.0

申请日：1991-09-23

申请人： POLAROID CORPORATION

发明人： ALLEN, Janet, A. ,  BYBELL, Daniel, P. ,  SCHUH, Dana, F. ,  THORNTON, Jay, E.

IPC分类号： A61B5 ,  H04N1

CPC分类号： H04N1/4055

摘要： Appareil et procédé d'impression particulièrement appropriés pour l'obtention d'une sortie sur support en papier d'une image produite par un équipement de prise d'images médical ou similaire. L'appareil produit une sortie sur support en papier constituée de pixels dont la dimension peut être modifiée par modulation de surface pour s'adapter aux tonalités et aux détails de l'image tout en conservant un grand nombre de niveaux de gris par cellule de modulation de surface (pixel). De préférence, les mêmes structures de modulation de surface représentant des valeurs de tonalités de pixel sont utilisées pour imprimer des pixels de dimensions différentes.