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    VERSATILE MICROSECOND MULTIPLE FRAMING CAMERA
    2.
    发明专利
    VERSATILE MICROSECOND MULTIPLE FRAMING CAMERA 未知

    公开(公告)号：CA1153818A

    公开(公告)日：1983-09-13

    申请号：CA352844

    申请日：1980-05-27

    Applicant: IBM

    Inventor： DREYFUS RUSSELL W ,  LANDON ALFRED J

    IPC: H04N5/232 ,  H04N5/76

    Abstract: VERSATILE MICROSECOND MULTIPLE FRAMING CAMERA A versatile microsecond multiple framing camera generates a switched beam of illumination derived from a laser and switched by an acousto-optic modulator. The illumination is focused on a subject, and illumination from the subject is caused to scan over a predetermined field by a mechanical or electromechanical scanner. Located in the field is an image recording device for recording the illumination directed over the field by the scanner. The image recording device, in one embodiment, includes a vidicon tube, for short term storage, and a video recorder for longer term storage. A video monitor may be driven from the video recorder. The versatility of the camera is exemplified by the ability to vary exposure times or frame rates by adjusting operator controls which drive the acousto-optic modulator and/or the electromechanical scanner. In other embodiments, the vidicon tube and video recorder can be replaced or supplemented by photographic film. YO978-079

    ELECTROSTATIC CLUTCH
    4.
    发明专利
    ELECTROSTATIC CLUTCH 未知

    公开(公告)号：CA1148101A

    公开(公告)日：1983-06-14

    申请号：CA361865

    申请日：1980-09-10

    Applicant: IBM

    Inventor： CUOMO JEROME J ,  LANDON ALFRED J ,  WANG HAN C

    IPC: B41J9/40 ,  H02N13/00 ,  F16D13/10

    Abstract: An electrostatic clutch operable by the Johnsen-Rahbek effect, which may be used to operate, e.g., a print hammer device, is described, said clutch comprising a rotatable drum and a band engagable therewith, wherein the engagable surface of the drum is a semiconductive surface prepared by sputtering or vapor depositing a layer of substantially pure silicon carbide onto a conductive substrate. YO979-038

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