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162 records (took 0.025 seconds)

    22.
    发明专利
    未知

    公开(公告)号：DE69128067D1

    公开(公告)日：1997-12-04

    申请号：DE69128067

    申请日：1991-11-26

    Applicant: CANON KK

    Inventor： YAMAGUCHI EIJI ,  MATSUMURA SUSUMU ,  HOSHI HIROAKI ,  YAMAMOTO MASAKUNI ,  MORISHIMA HIDEKI

    IPC: G11B11/10 ,  G11B7/00 ,  G11B7/0045 ,  G11B7/125 ,  G11B11/105

    Abstract: An optical information recording/reproducing apparatus is disclosed. The apparatus is provided with a device for irradiating a preheating light beam onto an information track of an optical information recording medium. Simultaneously, a recording/reproducing light beam is irradiated onto a light spot of the preheating light beam on the recording medium. The light intensity of the preheating light beam is varied in accordance with a detection result regarding an environmental temperature of the apparatus obtained by the detector. By such the construction, the recording/reproducing condition of information is kept constant irrespective of the environmental temperature.

    23.
    发明专利
    未知

    公开(公告)号：DE69217619D1

    公开(公告)日：1997-04-03

    申请号：DE69217619

    申请日：1992-11-25

    Applicant: CANON KK

    Inventor： SUDO TOSHIYUKI ,  TANIGUCHI NAOSATO ,  MORISHIMA HIDEKI

    IPC: G03H1/26 ,  G02B5/32 ,  G03F7/20 ,  G03H1/04 ,  G03H1/30 ,  H01L21/027

    Abstract: A hologram manufacturing apparatus and a hologram manufacturing method for manufacturing a hologram optical device by a split exposure method are disclosed. The manufacturing apparatus comprises light shield means (10) having a spatial light modulator having a light transparent area and a light non-transparent area thereof controlled corresponding to an input signal, and drive means (8) for driving the spatial light modulator by supplying the signal to the spatial light modulator. The light shield means is arranged closely to a photosensitive material (7).

    24.
    发明专利
    未知

    公开(公告)号：AT384281T

    公开(公告)日：2008-02-15

    申请号：AT02257853

    申请日：2002-11-14

    Applicant: CANON KK

    Inventor： TAKAGI AKINARA ,  YAMAZAKI SHOICHI ,  MORISHIMA HIDEKI ,  INOGUCHI KAZUTAKA ,  MATSUNAGA MOTOMI

    IPC: G02B27/01 ,  G02B17/00 ,  G02B17/08

    Abstract: A display optical system for guiding light from an original picture to an eye of an observer or a surface to have an image projected thereon is provided with a first optical system and a second optical system. The first optical system is provided with a first surface that is formed on a transparent body and has at least a reflecting action, a second surface for reflecting light reflected on the first surface toward the first surface again, and a third surface that is formed on the transparent body in the same manner as the first surface and transmits the light from the original picture. The light transmitted through the third surface travels toward the first surface and reflected for the first time on the first surface. In addition, a principal ray at central angle of view to be reflected for the last time on the first surface is reflected and travels to a side opposite to a side of the first reflection on the first surface with respect to a normal line of a surface on a hit point thereof. With such a structure, a small display optical system that is capable of widening an angle of view is realized.

    25.
    发明专利
    未知

    公开(公告)号：DE69735736T2

    公开(公告)日：2006-11-02

    申请号：DE69735736

    申请日：1997-01-29

    Applicant: CANON KK

    Inventor： TANIGUCHI NAOSATO ,  NOSE HIROYASU ,  SUDO TOSHIYUKI ,  MORISHIMA HIDEKI ,  INOGUCHI KAZUTAKA

    IPC: G02B27/22 ,  H04N13/00 ,  H04N13/04

    Abstract: The invention relates to a stereoscopic image display apparatus comprising a light source (10) for emitting light from plural apertures (8), an optical element array (4) composed of an array of optical elements having different optical functions in the horizontal and vertical directions, for giving directivity to the light emerging from the apertures, and a transmissive display device (6) for displaying a stripe image, obtained by dividing each of a parallax image for the right eye and a parallax image for the left eye in the vertical direction to obtain right stripe pixels (Rn)and left stripe pixels (Ln) and arranging the right and left stripe pixels alternately in a predetermined order, wherein the plural apertures (8) are provided corresponding to'each of the optical elements constituting the optical element array, for each stripe pixel, and are adapted to cause the light, passing through the right or left stripe pixel, to reach a predetermined area.

    26.
    发明专利
    未知

    公开(公告)号：DE69433556D1

    公开(公告)日：2004-03-25

    申请号：DE69433556

    申请日：1994-03-28

    Applicant: CANON KK

    Inventor： TANIGUCHI NAOSATO ,  MATSUMURA SUSUMU ,  YOSHINAGA YOKO ,  KOBAYASHI SHIN ,  SUDO TOSHIYUKI ,  MORISHIMA HIDEKI ,  KANEKO TADASHI

    IPC: G02B27/00 ,  G02B27/01 ,  G09B9/30 ,  H04N5/64

    Abstract: This invention relates to an image display apparatus having first image generating means for displaying first image information by a plurality of pixels emitting light, second image generating means for displaying second image information by a plurality of pixels emitting light, the second image information being part of the first image information, visual axis detecting means for detecting an observer's visual axis direction, optical means for combining a first image from the first image generating means and a second image from the second image generating means, moving the second image relative to the first image in conformity with an output signal from the visual axis detecting means and turning it to the observer's pupil, the marginal portion of the second image being made substantially coincident with the boundary between the pixels of the first image when the images are combined, and image display changing means for changing the first image information and the second image information on the basis of the output signal of the visual axis detecting means.

    28.
    发明专利
    未知

    公开(公告)号：DE69623702D1

    公开(公告)日：2002-10-24

    申请号：DE69623702

    申请日：1996-06-27

    Applicant: CANON KK

    Inventor： INOGUCHI KAZUTAKA ,  HOSHI HIROAKI ,  TANIGUCHI NAOSATO ,  SUDO TOSHIYUKI ,  MORISHIMA HIDEKI

    IPC: G02B27/22 ,  H04N13/00 ,  H04N13/04

    Abstract: This invention relates to an image display method, which includes the steps mainly characterized by allowing the observer to stereoscopically view the three-dimensional partial image by guiding a light beam coming from the three-dimensional partial image to a predetermined position via a partial parallax barrier, which is formed by light directivity controlling means, arranged to oppose the image displaying means, by alternately arranging stripe-shaped light-transmitting portions and light-shielding portions on an area corresponding to the three-dimensional partial image; and controlling, using light amount adjusting means, the brightness levels of the partial images to be observed by the observer in correspondence with the view point numbers of the partial images.

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