The Review of Laser Engineering
Online ISSN : 1349-6603
Print ISSN : 0387-0200
ISSN-L : 0387-0200
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Volume 30, Issue 12
Displaying 1-8 of 8 articles from this issue
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Topical Papers on on Three-Dimensional Display Technology
Topical Papers
Laser Reviews
  • Review of 3-D Display Technologies
    Toshio HONDA
    2002 Volume 30 Issue 12 Pages 702-707
    Published: December 15, 2002
    Released on J-STAGE: January 27, 2010
    DOIhttps://doi.org/10.2184/lsj.30.702
    JOURNAL FREE ACCESS
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    The present state of 3-D display technologies is viewed from the point of 3-D video. First, different two categories are tried, and the merit and the demerit of each practical display method are mentioned. Next, new methods which have been recently developed are introduced with the key points. In future, observation of 3-D image should be natural and observers should not be tired. From this point of view, it becomes important the comparison of eye control between the case of real object observation and 3-D display observation. The researches of these progress are mentioned.
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  • Display of Three-Dimensional Still Images by Holography
    Toshihiro KUBOTA
    2002 Volume 30 Issue 12 Pages 708-713
    Published: December 15, 2002
    Released on J-STAGE: January 27, 2010
    DOIhttps://doi.org/10.2184/lsj.30.708
    JOURNAL FREE ACCESS
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    Recent advancements of three-dimensional still image display by holography are introduced. The features of holography for displaying the image and the technical subjects to be solved are described first. The topics include the deep-image holography, hologram printer, color holography, compact reconstruction of hologram, and the image formation using computer. The display of image information using holographic optical element is also presented.
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  • Personalized Holographic Stereogram Printer
    Megumi EZURA, Nobuhiro KIHARA
    2002 Volume 30 Issue 12 Pages 714-718
    Published: December 15, 2002
    Released on J-STAGE: January 27, 2010
    DOIhttps://doi.org/10.2184/lsj.30.714
    JOURNAL FREE ACCESS
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    A personalized holographic stereogram printing system has been developed. The system consists of an image processing PC, a system control device and a desktop one-step holographic stereogram printer. It takes less than 90 seconds including file-loading time to obtain a horizontal-parallax-only hologram image 30 mm × 22.4 mm on photopolymer film. The system is capable of producing not only reflection type holograms but also edge-lit type holograms by making a small change to the printer head. As applications of the edge-lit hologram, we propose a 360 degrees viewable cylindrical hologram and a compact edge-lit hologram viewer. The system can be applied to many applications such as portraiture, computer graphics, identification, computer aided design, visualization, medical imaging and so on. We will also describe about the consumer applications that will enable us to easily put personalized contents into the hologram via the Internet.
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  • Stereoscopic Display System Using a Large LED Screen
    Nobuo NISHIDA, Hirotsugu YAMAMOTO, Yoshio HAYASAKI
    2002 Volume 30 Issue 12 Pages 719-725
    Published: December 15, 2002
    Released on J-STAGE: January 27, 2010
    DOIhttps://doi.org/10.2184/lsj.30.719
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    The development of a large stereoscopic full-color LED display using a parallax barrier is described. An optimization of a viewing area that depends on the width of black regions between LEDs has been discussed and then its widening has been examined by using LED panels with different width of black regions. A method to enlarge the viewing areas of the display for observers with different interpupillary distances is proposed. Furthermore, elimination of the pseudoscopic viewing area by introducing black columns into the display has been discussed and confirmed by experiments.
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Laser Originals
  • New Kind of Three-Dimensional Imaging Using a Spatial Light Filter
    Tetsuro KOBAYASHI, Yusuke NAKAMURA, Tomoko NAKATANI, Hideki TAKANO, Yo ...
    2002 Volume 30 Issue 12 Pages 726-730
    Published: December 15, 2002
    Released on J-STAGE: January 27, 2010
    DOIhttps://doi.org/10.2184/lsj.30.726
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    We have proposed a new kind of glasses-free three-dimensional imaging system that is capable of presenting a white cloud-like object as if it were an arbitrarily shaped color object by filtering and coloring light rays using a pinhole-array and a spatial-color-filter. Simple 3D images floating in the air at about 40 cm have been successfully generated as a result of the experiment with Fresnel lenses, though the generated images lacked clarity. On the other hand, comparatively clear 3D images have been generated by direct imaging without the Fresnel lenses.
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  • Three-Dimensional Spatial Image Forming Using Gradient-Index Lens Arrays
    Fumio OKANO, Jun ARAI, Makoto OKUI
    2002 Volume 30 Issue 12 Pages 731-736
    Published: December 15, 2002
    Released on J-STAGE: January 27, 2010
    DOIhttps://doi.org/10.2184/lsj.30.731
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    The authors propose a new function for a two-dimensional lens array that is composed of many gradient-index lenses. The length of the lenses is an odd-integer multiple of the half period of the optical path. The array produces pseudoscopic three-dimensional (3D) images with reversed depth. Two lens arrays are positioned at a suitable distance so that orthoscopic 3D images with correct depth are formed in front of the lens arrays. The combined arrays can capture, transmit and display 3D images without other devices. This function is similar to that of integral photography.
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  • Development of Hybrid Hologram Screen for Large Auto-Stereoscopic Display
    Hyun Ho SONG, Taketo SHIBUYA, Toshio HONDA
    2002 Volume 30 Issue 12 Pages 737-741
    Published: December 15, 2002
    Released on J-STAGE: January 27, 2010
    DOIhttps://doi.org/10.2184/lsj.30.737
    JOURNAL FREE ACCESS
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    Hologram screen for auto-stereoscopic 3-D display has the merit that the size of viewing zone can be controlled adequately. But it has fundamentally color dispersion and color aberration when the hologram screen is illuminated by white light. Therefore, it is required that little color dispersion and little color aberration is realized. In this paper, we propose the hologram screen attached with Fresnel lens, and the effect of the screen is demonstrated by simulation and by a experiment.
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