Journal of The Society of Photographic Science and Technology of Japan
Online ISSN : 1884-5932
Print ISSN : 0369-5662
ISSN-L : 0369-5662
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Volume 50, Issue 5
Displaying 1-8 of 8 articles from this issue
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  • [title in Japanese]
    [in Japanese]
    1987 Volume 50 Issue 5 Pages 355
    Published: October 28, 1987
    Released on J-STAGE: August 11, 2011
    DOIhttps://doi.org/10.11454/photogrst1964.50.355
    JOURNAL FREE ACCESS
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  • Electronic Imaging, The Challenge, The Promise
    MICHAEL A. KRISS
    1987 Volume 50 Issue 5 Pages 357-378
    Published: October 28, 1987
    Released on J-STAGE: August 11, 2011
    DOIhttps://doi.org/10.11454/photogrst1964.50.357
    JOURNAL FREE ACCESS
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    Electronic imaging has entered it most formative years. Television has been mastered and the advent of High Definition Television is only a few years away. The most challenging aspect of electronic imaging will be the goal of producing a color, still electronic camera that provides the quality of current photographic systems. This review article will try to give the reader a feeling for the progress that has been made in electronic imaging, the basic technology that makes it possible today, and the challenges that still exist for it to stand along side ever improving, conventional silver halide photography as a source of images and memories for the consumer.
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  • A New Aspect of Photographic Speed (2)
    Discrepancy between Gray-to-Gray Reproduction and Color Reproduction on Photographic Speed Determination of Color Negative Film
    Souichi KUBO, Hiroko ARAI, Hirohisa YAGUCHI, Yoichi MIYAKE
    1987 Volume 50 Issue 5 Pages 379-384
    Published: October 28, 1987
    Released on J-STAGE: August 11, 2011
    DOIhttps://doi.org/10.11454/photogrst1964.50.379
    JOURNAL FREE ACCESS
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    Recent color negative films intended to introduce higher inter-image effects can satisfy the concept of ISO speed only in the case of gray-to-gray reproduction. By means of colorimetrical analysis, it was found that, in the case of color reproduction, the exposure latitude of the recent color negative films is rather narrower than that of considered in the gray-to-gray reproduction.
    In this paper, a new aspect of photographic speed determination of color negative film is proposed.
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  • Studies on Physical Development (VI)
    Effect of Gelatin on Pure Physical Development
    Naokazu AOKI, Nobuo MII
    1987 Volume 50 Issue 5 Pages 385-388
    Published: October 28, 1987
    Released on J-STAGE: August 11, 2011
    DOIhttps://doi.org/10.11454/photogrst1964.50.385
    JOURNAL FREE ACCESS
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    The effect of gelatin on pure physical development was studied for developers containing a different developing agents.
    It was observed that the developing curves consisted of two stages: the earlier stage in which an increasing developed silver was constant and the later stage in which it decreased with development time.
    Development in earlier stage was found to be retarded by gelatin. The degree of retardation could be classified by the magnitude of the charge of developing agents. On the other hand, that in later stage was found to be accelerated by gelatin.
    It can be explained in terms of the effect of competitive adsorption with gelatin, the developing agent and its oxidation products as follows. In earlier stage, gelatin adsorbs on the surface of development nuclei and decreases its active surface area. In later stage, gelatin inhibits the adsorption of oxidation products and decreases their development-restraining action.
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  • Epitaxial Growth of Silver Chloride on {0001} Face of Silver Iodide
    Kenichi KUGE, Tetsuya SUZUKI, Ryo HIROHASHI
    1987 Volume 50 Issue 5 Pages 389-394
    Published: October 28, 1987
    Released on J-STAGE: August 11, 2011
    DOIhttps://doi.org/10.11454/photogrst1964.50.389
    JOURNAL FREE ACCESS
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    Condition for epitaxial growth of silver chloride on silver iodide has been studied. Hexagonal plate crystals of β-AgI were prepared by gel method and AgCl crystals grew on it by evaporation of a variety of AgCl-amine solutions. AgC1 crystals covered with [111] faces were grown from aqueous ammonia solution, those with [110] faces were from aqueous pyridine solution and those with [100] faces were from aqueous ethylamine solution. AgCl crystals having [111] faces grew epitaxially on fitting their triangular lattice to that of [0001] face of AgI crystal. On the contrary, those having [100] and [110] faces did not grow epitaxially. At nucleation stage, two dimensional planar nuclei were formed at first. As lattice constants are different between AgCl and AgI, the effect of solvent to determine the face index becomes stronger than that of base lattice, and nuclei have [100] or [110] planar lattices. They contact AgI not with [111] faces but with [100] or [110] faces randomly and they do not grow epitaxially.
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  • Overview on “Photothermographic Silver Halide System”
    Akihiko MIYAMOTO
    1987 Volume 50 Issue 5 Pages 395-396
    Published: October 28, 1987
    Released on J-STAGE: August 11, 2011
    DOIhttps://doi.org/10.11454/photogrst1964.50.395
    JOURNAL FREE ACCESS
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  • Silver Halide Color Recording Material Processable without Water
    Ken OKAUCHI
    1987 Volume 50 Issue 5 Pages 397-401
    Published: October 28, 1987
    Released on J-STAGE: August 11, 2011
    DOIhttps://doi.org/10.11454/photogrst1964.50.397
    JOURNAL FREE ACCESS
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  • Photothermographic Color Material
    Hiroshi HARA, Hideki NAITO, Kozo SATO
    1987 Volume 50 Issue 5 Pages 402-408
    Published: October 28, 1987
    Released on J-STAGE: August 11, 2011
    DOIhttps://doi.org/10.11454/photogrst1964.50.402
    JOURNAL FREE ACCESS
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