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    VISUAL IMAGE RECORDING DEVICE
    21.
    发明专利
    VISUAL IMAGE RECORDING DEVICE 未知

    公开(公告)号：CA1059229A

    公开(公告)日：1979-07-24

    申请号：CA253541

    申请日：1976-05-27

    Applicant: IBM

    Inventor： POLE ROBERT V ,  SHATTUCK MEREDITH D ,  SINCERBOX GLENN T ,  WERLICH HARALD W

    IPC: B41M5/20 ,  G02F1/15 ,  G02F1/17 ,  G03C1/73 ,  G03C5/56 ,  G09F9/30 ,  G11B7/004 ,  G11B7/241 ,  G11B9/08 ,  G02F1/00

    Abstract: A direct view display device comprises a pair of conductive electrodes in spaced relationship and a recording medium having the properties of being both photo-ionizable and capable of electro-chemically producing colored species occupies the space between the electrodes. The display device is exposed to an optical pattern of radiation to which the recording material is sensitive to produce a latent image, and a potential is applied between the electrodes to produce a very dense image corresponding to the optical pattern. The image can be erased by reversing the potential between the electrodes so that the expose and enhance process can be repeated.

    22.
    发明专利
    未知

    公开(公告)号：FR2381374A1

    公开(公告)日：1978-09-15

    申请号：FR7800740

    申请日：1978-01-05

    Applicant: IBM

    Inventor： HAARER DIETRICH ,  POLE ROBERT V ,  VOELKER SILVIA L

    IPC: G02F1/17 ,  G03H1/04 ,  G03H1/22 ,  G11C13/04 ,  G11C7/00 ,  G03H1/00

    Abstract: NON-DESTRUCTIVE READOUT SCHEME FOR HOLOGRAPHIC STORAGE SYSTEM of the Invention A non-destructive readout scheme suitable for use with a holographic storage system having data stored in three spatial dimensions and one frequency dimension is described. The readout scheme and the holographic storage system use a preferred storage material which undergoes a reversible photochromic reaction involving two inhomogeneously broadened absorption bands. Information is written into the storage system by exposing the material to a holographic interference pattern of light at a frequency within either one of the two absorption bands. The non-destructive readout scheme involves reconstructing the original information by sensing the change in the index of refraction at a frequency just outside of and near either one of the two absorption bands. The readout scheme also includes sensing refractive index changes near one or more narrow absorption lines within either absorption band.

    25.
    发明专利
    未知

    公开(公告)号：FR2391501A1

    公开(公告)日：1978-12-15

    申请号：FR7811800

    申请日：1978-04-14

    Applicant: IBM

    Inventor： POLE ROBERT V ,  WERLICH HARALD W

    IPC: G06K7/12 ,  G02B5/32 ,  G02B26/10 ,  G03H1/22 ,  G02F1/29 ,  G06K7/10

    Abstract: HOLOGRAPHIC OPAQUE DOCUMENT SCANNER An opaque document scanner in which a moving hologram generates a locus of points from a stationary light beam on an opaque document and the same hologram or a similar one mounted for conjoint movement collects light energy reflected from the document at each point and focuses this energy onto a stationary detector to provide electrical signals corresponding to the information scanned on the document.

    26.
    发明专利
    未知

    公开(公告)号：FR2336698A1

    公开(公告)日：1977-07-22

    申请号：FR7634826

    申请日：1976-11-12

    Applicant: IBM

    Inventor： POLE ROBERT V ,  WOLLENMAN HANS P

    IPC: H04N3/02 ,  G02B5/32 ,  G02B26/10 ,  G11B7/00 ,  G11B7/0065 ,  G02B27/17 ,  G11C13/04

    Abstract: A two-dimensional light deflector is shown which comprises a cylindrical member having a plurality of holograms recorded thereon. A collimated light beam is directed to illuminate the hologram cylinder and rotation of the hologram cylinder provides a line scan which is at an angle of about 45 DEG with respect to the plane of rotation of the cylinder. The azimuthal position of the line scan can be varied by the rotation of a small mirror which directs the illumination beam. As a consequence, a two-dimensional raster scan on a cylindrical image surface is produced.

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