日本写真学会誌
Online ISSN : 1884-5932
Print ISSN : 0369-5662
ISSN-L : 0369-5662
36 巻, 1 号
選択された号の論文の6件中1~6を表示しています
  • 松原 鋭彦
    1973 年 36 巻 1 号 p. 5-11
    発行日: 1973/01/31
    公開日: 2011/08/11
    ジャーナル フリー
  • ジフェニルアミンとハロメタンの間に形成される弱い電荷移動錯体
    五十里 邦弘, 前沢 けい子, 吉田 弘美, 塚田 知道
    1973 年 36 巻 1 号 p. 12-19
    発行日: 1973/01/31
    公開日: 2011/08/11
    ジャーナル フリー
    It is shown that an interaction of the type of weak charge-transfer complex formation is respon-sible for the change of the UV absorption of diphenylamine and indole, in the solvents of chloroform, carbon tetrachloride, bromoform and carbon tetrabromide.
    The following results are obtained from the spectrophotometric analysis by the Benesi-Hildebrand equation and the Contineous-Variation method.
    1. Number of the formed complex of diplienylamine with carbon tetrachloride is one.
    3. For the diphenylamine complex with carbon tetrachloride, the values of a molar extinction coefficient of (3.5±1.5)×104l/mole ·cm, an apparent equlibrium constant of (1.8±0.6)×10-2l/mol (at22 °C), and a heat of formation of 2.9×103 cal/mole are calculated.
    4. Approximately, the linear relation between each peak of the charge-transfer band in the solution of CCl4 and each ionization potential of the composed amine is held.
    5. It seems that the magnitude of electron affinity among four halomethanes becomes weaker in the order, carbon tetrabromide, bromorm, carbon tetrachloride, chloroform.
  • 非対称シアニン色素の写真特性とポーラロ還元半波電位に関する研究
    飛鋪 靖, 上田 保
    1973 年 36 巻 1 号 p. 20-24
    発行日: 1973/01/31
    公開日: 2011/08/11
    ジャーナル フリー
    Unsymmetrical carbocyanine dye, containing one nucleus having sensitizing ability, the other one having desensitizing effect was measured for absorption spectrum, polarographic half-wave potential and sensitizing effect for silver halide emulsion. The following results were obtained.
    1) The hyper-redox potential of these dyes confirmed to lie near redox potential of silver bromide (0.24 V vs. SCE).
    2) For relationship between excitation energy and polarographic half-wave potential, these dyes exist among the range of sensitizing dye and desensitiziug dye.
    3) Spectral sensitizing ability of unsymmetrical carbocyanine dye can be estimated as the sum of sensitizing ability of each nuclei-desensitization will be considered as minus sensization-.
    4) Few dyes having none of ability to sensitize and to desensitize silver halide may be used as anti-irradiation dye.
  • Newton-Raphson法による条件等色的色合せ
    大田 登
    1973 年 36 巻 1 号 p. 25-36
    発行日: 1973/01/31
    公開日: 2011/08/11
    ジャーナル フリー
    Any theoretical analysis on color reproduction of a color photographic or printing system requires as a first step the calculation of the relative amounts of a set of three dyes (cyan, magenta, and yellow) that compose a reproduced color of a certain chromaticity and lightness (u, v, Y). The amounts of a set of three dyes can be calculated uniquely when the spectral density distributions of the three dyes are known. The problem of calculating the amount of dye is reduced to solving simultaneous integral equations which are difficult to solve analytically. An algorithm for computer solution of the integral equations has been established using the Newton-Raphson technique. The computer program for metameric color mathching has been developed for the IBM-1130 computer in FORTRAN IV language. The results have been checked experimentally in dye solutions where the Lambert-Beer law holds to a fairly good approximation, and in color reflection-prints.
  • 大嶋 太市
    1973 年 36 巻 1 号 p. 37-50
    発行日: 1973/01/31
    公開日: 2011/08/11
    ジャーナル フリー
  • 岩野 治彦
    1973 年 36 巻 1 号 p. 51-57
    発行日: 1973/01/31
    公開日: 2011/08/11
    ジャーナル フリー
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