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    PROXIMITY COUPLED ELECTRO-OPTIC DEVICES
    13.
    发明专利
    PROXIMITY COUPLED ELECTRO-OPTIC DEVICES 未知

    公开(公告)号：CA1171508A

    公开(公告)日：1984-07-24

    申请号：CA382948

    申请日：1981-07-31

    Applicant: XEROX CORP

    Inventor： TURNER WILLIAM D

    IPC: B41J2/44 ,  G02F1/03 ,  G02F1/05 ,  G02F1/315 ,  G03G15/04

    Abstract: One or more electrodes of an electro-optic device are supported on a separate substrate which is held in close contact with the electro-optic element of the device so that the electric fields that are created when voltages are applied to such electrodes are proximity coupled into the electro-optic element. Proximity coupling is especially advantageous for multi-gate light valves and the like where separate electrical connections have to be made to a multitude of electrodes because it permits those connections to be made remotely from the electro-optic element. However, the broader aspects of proximity coupling are applicable to electro-optic devices in general, including bulk and TIR electro-optic modulators and straight through and TIR multi-gate electro-optic light valves.

    14.
    发明专利
    未知

    公开(公告)号：DE69625163T2

    公开(公告)日：2003-05-08

    申请号：DE69625163

    申请日：1996-12-11

    Applicant: XEROX CORP

    Inventor： TURNER WILLIAM D ,  SPRAGUE ROBERT A

    IPC: B42D9/04 ,  G03B27/62 ,  G03G15/00 ,  H04N1/00 ,  H04N1/04 ,  H04N1/10 ,  H04N1/195

    Abstract: The book imager (2) includes a support (4), for placement of a book (6) in an open position, an imager (12) having opposed imaging surfaces capable of simultaneously imaging the entire exposed, facing adjacent pages of the book in a distortion preventing manner, and an air jet page turning system. The support and the imager are relatively movable toward and away from one another, from one position in which imaging is effected, to another in which page turning is effected. The air jet page turning system includes a fluffing jet for separating pages, a pick-off jet for separating the topmost page from the fluffed pages, a force applying jet for urging the topmost page into intimate contact with the imaging device and a page turning jet for driving the topmost page to the opposite side of the book.

    CROSS SCAN BEAM POSITIONER FOR MULTIPLE CHANNEL LASER ROS
    15.
    发明专利
    CROSS SCAN BEAM POSITIONER FOR MULTIPLE CHANNEL LASER ROS 未知

    公开(公告)号：DE3479836D1

    公开(公告)日：1989-10-26

    申请号：DE3479836

    申请日：1984-10-10

    Applicant: XEROX CORP

    Inventor： JOHNSON RICHARD V ,  TURNER WILLIAM D

    IPC: G02B26/10 ,  G01D9/42 ,  G02F1/03 ,  G02F1/05 ,  G02F1/315 ,  G06K15/12 ,  H04N1/113

    Abstract: A multi-channel laser ROS scanner for simultaneously scanning laser beam components across multiple lines of a photosensitive surface including appratus for determining deviations in the position of the surface from a desired position due to undesired photosensitive surface velocity variations whereby an error correction signal can be generated, and a TIR modulator having a plurality of interdigitated, addressable drive electrodes. The total number of drive electrodes N, of the TIR modulator is greater than the collective number of drive electrodes N. needed to provide the desired pixel resolution for all of the simultaneously scanned lines. When the photosensitive surface is maintained at a desired velocity, such velocity being determined in a conventional manner by system parameters, the surface is correctly positioned and N. adjacent drive electrodes located generally centrally within the TIR electrode configuration are addressed by the video data signals for the multiple scan lines, causing the laser beam components to exit the TIR modulator with an unshifted or "normal" propagation direction within the optical window of the modulator resulting in scan lines being recorded at desired positions on the photoreceptive surface. Should the photosensitive deviate from its desired position at a given time, the error signal functions to cause N s different adjacent drive electrodes to be addressed .whereby the laser beam components exiting the TIR modulator are shifted in propagation direction such that they strike the photosensitive surface at a placement which corrects for the position deviation.

    17.
    发明专利
    未知

    公开(公告)号：DE3610959A1

    公开(公告)日：1986-10-30

    申请号：DE3610959

    申请日：1986-04-02

    Applicant: XEROX CORP

    Inventor： TURNER WILLIAM D

    IPC: B41J2/445 ,  G02F1/01 ,  G02F1/03 ,  G02F1/05 ,  G02F1/315 ,  G06K15/12 ,  G02F1/00 ,  H04N1/032 ,  B41J3/21 ,  G09F9/30

    Abstract: Additional control in a differentially-encoded printer utilizing an electro-optic element is achieved by normalizing or equalizing the strength of the fringe fields. Such normalization is provided by applying analog voltages to the adjacent electrodes in addition to the encoded data sample voltages. Specifically, normalization of the strength of the fringe fields is achieved by characterizing the interaction between each adjacent pair of electrodes by measuring the efficiency amplitude of the fringe field caused by each adjacent pair of electrodes when a test voltage is applied to alternate electrodes and converting efficiency amplitude to an analog voltage for each electrode by a transfer function plotting efficiency amplitude versus voltage, storing the analog voltage for each electrode and adding the analog voltage for each electrode to the data sample voltage for that electrode to provide at the electrodes a full set of voltage differences that will provide normalization of the strength of the fringe fields associated with one complete data scan line.

    CONFORMABLE ELECTRODES FOR PROXIMITY COUPLED ELECTRO- OPTIC DEVICES
    19.
    发明专利
    CONFORMABLE ELECTRODES FOR PROXIMITY COUPLED ELECTRO- OPTIC DEVICES 未知

    公开(公告)号：CA1210489A

    公开(公告)日：1986-08-26

    申请号：CA454613

    申请日：1984-05-17

    Applicant: XEROX CORP

    Inventor： SPRAGUE ROBERT A ,  TURNER WILLIAM D

    IPC: G02F1/05 ,  G02F1/03 ,  G02F1/315 ,  G02F1/00

    Abstract: The electrodes of a proximity coupled, multigate electro-optic light valve are formed from or are overcoated with a soft, conformable composition which flows in its solid state to conform to the electro-optic element of the light valve when the electrodes are pressed thereagainst. For example, standard semiconductor fabrication techniques may be utilized to fabricate a suitably patterned set of electrically independent, elongated electrical conductors on a silicon integrated circuit, and those conductors may, in turn, be overcoated with a high dielectric constant, conformable material, such as indium or aluminum.

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