公开(公告)号：CA978390A

公开(公告)日：1975-11-25

申请号：CA171447

申请日：1973-05-15

Applicant: XEROX CORP

Inventor： SWANBERG MELVIN E

IPC: F16H19/02

公开(公告)号：DE69220742T2

公开(公告)日：1998-01-15

申请号：DE69220742

申请日：1992-08-12

Applicant: XEROX CORP

Inventor： LOCE ROBERT P ,  CIANCIOSI MICHAEL S ,  WU PETER K ,  BANTON MARTIN E ,  FETH SUSAN E ,  GIRMAY GIRMAY K ,  LAMA WILLIAM L ,  GARCIA KEVIN J ,  SWANBERG MELVIN E

IPC: B41J2/44 ,  G02B26/10 ,  G02B26/12 ,  G06K15/12 ,  H04N1/113 ,  H04N1/40

Abstract: A pulsed imaging Raster Output Scanner utilizes pulse width modulation in conjunction with spatial filtering to form three exposure levels at the surface of a recording medium, one of the levels associated with a specific color. In a specific non-facet tracked scanner system, a light beam (84) from a laser source (82) is modulated, by an acousto-optic modulator (92), in accordance with a video signal supplied to the modulator by a control circuit (94). An anamorphic lens system (108) performs a Fourier transform on the modulated beam which is then filtered by a spatial bandpass filter (136) before being directed, by a rotating polygon scanner (142), across the recording medium (162).

公开(公告)号：DE69028753T2

公开(公告)日：1997-03-13

申请号：DE69028753

申请日：1990-10-12

Applicant: XEROX CORP

Inventor： GUERIN JEAN-MICHEL ,  SWANBERG MELVIN E

IPC: G02B26/10 ,  B41J2/44 ,  G02B5/30 ,  G02B27/28 ,  G02F1/11 ,  G03G15/04 ,  G06K15/12 ,  H04N1/113 ,  H04N1/191

公开(公告)号：CA2077377C

公开(公告)日：1996-12-10

申请号：CA2077377

申请日：1992-09-02

Applicant: XEROX CORP

Inventor： LOCE ROBERT P ,  BANTON MARTIN E ,  LAMA WILLIAM L ,  CIANCIOSI MICHAEL S ,  FETH SUSAN E ,  GARCIA KEVIN J ,  WU PETER K ,  GIRMAY GIRMAY K ,  SWANBERG MELVIN E

IPC: B41J2/44 ,  G02B26/10 ,  G02B26/12 ,  G06K15/12 ,  H04N1/113 ,  H04N1/40 ,  H04N1/46 ,  H04N1/04 ,  H04N1/23

Abstract: A pulsed imaging Raster Output Scanner utilizes pulse width modulation in conjunction with spatial filtering to form three exposure levels at the surface of a recording medium, one of the levels associated with a specific color.

公开(公告)号：CA2077377A1

公开(公告)日：1993-03-10

申请号：CA2077377

申请日：1992-09-02

Applicant: XEROX CORP

Inventor： LOCE ROBERT P ,  BANTON MARTIN E ,  LAMA WILLIAM L ,  CIANCIOSI MICHAEL S ,  FETH SUSAN E ,  GARCIA KEVIN J ,  WU PETER K ,  GIRMAY GIRMAY K ,  SWANBERG MELVIN E

IPC: B41J2/44 ,  G02B26/10 ,  G02B26/12 ,  G06K15/12 ,  H04N1/113 ,  H04N1/40 ,  H04N1/46 ,  H04N1/04 ,  H04N1/23

Abstract: A pulsed imaging Raster Output Scanner utilizes pulse width modulation in conjunction with spatial filtering to form three exposure levels at the surface of a recording medium, one of the levels associated with a specific color. In a specific non-facet tracked scanner system, a light beam (84) from a laser source (82) is modulated, by an acousto-optic modulator (92), in accordance with a video signal supplied to the modulator by a control circuit (94). An anamorphic lens system (108) performs a Fourier transform on the modulated beam which is then filtered by a spatial bandpass filter (136) before being directed, by a rotating polygon scanner (142), across the recording medium (162).

公开(公告)号：DE69225548D1

公开(公告)日：1998-06-25

申请号：DE69225548

申请日：1992-08-12

Applicant: XEROX CORP

Inventor： LOCE ROBERT P ,  CIANCIOSI MICHAEL S ,  WU PETER K ,  BANTON MARTIN ,  FETH SUSAN ,  GIRMAY GIRMAY K ,  LAMA WILLIAM L ,  GARCIA KEVIN J ,  SWANBERG MELVIN E

IPC: G02B26/10 ,  G02B26/12 ,  G02F1/33 ,  G03G15/01 ,  G06K15/12 ,  H04N1/113 ,  H04N1/40 ,  H04N1/46

公开(公告)号：DE69028753D1

公开(公告)日：1996-11-07

申请号：DE69028753

申请日：1990-10-12

Applicant: XEROX CORP

Inventor： GUERIN JEAN-MICHEL ,  SWANBERG MELVIN E

IPC: G02B26/10 ,  B41J2/44 ,  G02B5/30 ,  G02B27/28 ,  G02F1/11 ,  G03G15/04 ,  G06K15/12 ,  H04N1/113 ,  H04N1/191

公开(公告)号：DE3852472T2

公开(公告)日：1995-07-27

申请号：DE3852472

申请日：1988-11-02

Applicant: XEROX CORP

Inventor： BRUEGGEMANN HARRY P ,  SWANBERG MELVIN E

IPC: G02B26/10 ,  G02B26/12 ,  G02B27/00 ,  H04N1/113 ,  H04N1/04

公开(公告)号：CA1328756C

公开(公告)日：1994-04-26

申请号：CA579112

申请日：1988-10-03

Applicant: XEROX CORP

Inventor： BRUEGGEMANN HARRY P ,  SWANBERG MELVIN E

IPC: G02B26/10 ,  G02B26/12 ,  G02B27/00 ,  H04N1/113

Abstract: This invention relates to a pyramid polygon scanner wherein the differential scan length between multiple beams can be eliminated by tilting thebeams with respect to the photoreceptor surface. Then the beam with the shorter scan lengths when the beams are normal to the photoreceptor, travel a greater distance before they impinge on the photoreceptor. At the start or end of scan the scan angle is not zero, so the scan lengths for the beams with the larger traveldistances are increased by the extra distance multiplied by the tangent of the scan angle. At the proper tilt angle, all scan lengths at the photoreceptor are the same. Since the angular scan rate of all the beams are always the same, over the entire scan, the scan lengths of the individual beams will always be the same, at any fraction of the total scan. Thus the information written onto the photoreceptor by the multiple beams will be in alignment for all simultaneous beams.

公开(公告)号：CA2077293A1

公开(公告)日：1993-03-10

申请号：CA2077293

申请日：1992-09-01

Applicant: XEROX CORP

Inventor： LOCE ROBERT P ,  BANTON MARTIN E ,  SWANBERG MELVIN E ,  LAMA WILLIAM L ,  CIANCIOSI MICHAEL S ,  FETH SUSAN E ,  GARCIA KEVIN J ,  WU PETER K ,  GIRMAY GIRMAY K

IPC: G02B26/10 ,  G02B26/12 ,  G02F1/33 ,  G03G15/01 ,  G06K15/12 ,  H04N1/113 ,  H04N1/40 ,  H04N1/46 ,  H04N1/21