Journal of Printing Science and Technology
Online ISSN : 1882-4935
Print ISSN : 0914-3319
ISSN-L : 0914-3319
Volume 34, Issue 6
Displaying 1-8 of 8 articles from this issue
  • Appropriate Use of Colors in Our Living Environment and the Scientific Basis
    Taiichiro ISHIDA
    1997 Volume 34 Issue 6 Pages 370-374
    Published: November 30, 1997
    Released on J-STAGE: September 27, 2010
    JOURNAL FREE ACCESS
    This article reviews some recent studies that give the scientific basis for appropriate use of colors in our living environment. Since color is the most effective dimension for visual searching or labeling, we can easily find and recognize items that are specified by colors. The effectiveness of color information, however, is affected by its surrounding environment. First, the illuminance level significantly changes color appearances. Second, surrounding colors strongly affect the efficiency of color searching. Moreover recent studies of quantitative analysis of human sensibilities for color environment are described. A tentative method of estimating visual busyness using color statistics of actual scenes is discussed.
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  • A Comfortablness of the Interior Color for Japanese
    Motoko HIHARA
    1997 Volume 34 Issue 6 Pages 375-378
    Published: November 30, 1997
    Released on J-STAGE: September 27, 2010
    JOURNAL FREE ACCESS
    Since old times, Japanese standard of aesthetic consciousness has pretty changed by it's Historical background. According to this, it also can be seen many transition of their period style and expression on their way of life on the surface.
    However, the fashion color of the General Public was developed through Edo-era. And when to compare about the color preference of the people in between Modern age and Edo-era, there is a common pattern ovserved in the color combination. Namely, there are two typical color preference pattern as monochromatic color tone and the natural color tone which has been flowing as undercuurent through Japanese people.
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  • Recent Researches for Color Vision
    Miyoshi AYAMA
    1997 Volume 34 Issue 6 Pages 379-384
    Published: November 30, 1997
    Released on J-STAGE: September 27, 2010
    JOURNAL FREE ACCESS
    This paper reviews recent researches of color vision from the color appearance point of view. Color appearance depends on whether the stimulus appears as a self-luminous mode or surface mode. Color naming method is one of the useful technique to measure the perceptual appearance of color stimuli quantitatively. There are two major types of color naming, an opponent type and a categorical color naming. The former is based on the opponent-color theory and determines relative values of chromatic, achromatic, and four unique hue components, while the latter determines categorical perception of the stimulus. In this article, recent studies concerned with color appearance using either color naming technique as well as the investigations on blackness perception are introduced.
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  • Saptiotemporal Characteristics of Human Setereopsis
    Satoshi SHIOIRI
    1997 Volume 34 Issue 6 Pages 385-389
    Published: November 30, 1997
    Released on J-STAGE: September 27, 2010
    JOURNAL FREE ACCESS
    Binocular stereopsis is one of the most important cues for the human depth perception. Stereopsis is based on the differences in the right and left retinal images geometrically determined by the depth difference among objects. However, we do not perceive depth as in the physical world. Spatiotemporal characteristics of the images affect the depth perception and therefore it is important to know the spatiotemporal characteristics of human stereopsis both for understanding the human depth process and for evaluating the quality of the stereo images on various 3D displays. The purpose of the present paper is to review psychophysical data for the spatiotemporal characteristics of the binocular depth perception.
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  • You Shimizu, Hiroyuki Sugiyama, Masakazu Kawamata
    1997 Volume 34 Issue 6 Pages 390-396
    Published: November 30, 1997
    Released on J-STAGE: September 27, 2010
    JOURNAL FREE ACCESS
    The motion of sheet paper inside the printing machine is analyzed by using mechanical and fluid dynamic equations under gravity. In this analysis the paper is divided into small elements, each of which is affected by two kind of dynamic forces. The momentum transfer force from air to paper element is only considered as the effect of air motion for simplicity. Two cases of the motion are investigated, one of those is on a delivery chain and the other is on a transfer cylinder. For each case, two types of fluid conditions are considered. One is under natural air flow condition caused by paper motion and the other is under a forced air flow generated by fans or air nozzles. The dynamic behaviour of sheet paper in printing machine can be approximately simulated by this analysis. The result of simulated movement of sheet paper clearly shows how the air flow from the fan controls the fluctuation of the motion on a free sheet edge.
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  • Takahiro HOSHI
    1997 Volume 34 Issue 6 Pages 397-407
    Published: November 30, 1997
    Released on J-STAGE: September 27, 2010
    JOURNAL FREE ACCESS
    Secondary Ion Mass Spectrometry (SIMS) has been regarded as one of the most sensitive techniques for the surface analysis. In this review article, general explanation is presented with respect to the principle of the measurement and the typical information of this technique. Special emphases are laid on the effective usage of SIMS in the field of organic material when used as Time of Flight SIMS (TOF-SIMS). In addition, some examples are given for typical usage of SIMS, especially for the evaluation of polymer surface by using TOF-SIMS.
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  • Noboru OHTA
    1997 Volume 34 Issue 6 Pages 408-413
    Published: November 30, 1997
    Released on J-STAGE: September 27, 2010
    JOURNAL FREE ACCESS
    Up to this point, CIE color matching functions, standard illuminants and sources, and chromaticity diagrams are introduced. The CIE colorimetric system has been very successful and has been used in fields of a wide variety. However at the same time, some weak points have been revealed on the way. In particular, the uniformity of color spaces has brought about serious problems and its improvements have been vigorously investigated.
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  • Koji UCHIDA
    1997 Volume 34 Issue 6 Pages 414-415
    Published: November 30, 1997
    Released on J-STAGE: September 27, 2010
    JOURNAL FREE ACCESS
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