日本写真学会誌
Online ISSN : 1884-5932
Print ISSN : 0369-5662
ISSN-L : 0369-5662
38 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
  • フィルム, プリント画像の安定性と保存法
    宮川 俊夫
    1975 年 38 巻 1 号 p. 5-13
    発行日: 1975/02/25
    公開日: 2011/08/11
    ジャーナル フリー
    This review covers the following contents: 1. preface. 2. definition of fading. 3. testing methods of image stability. 4. methods of evaluation. 5. stability of chromogenic image (effects of coupler, pH, and hypo retention, conservation of records and image life). 6. stability of silver dye bleach image. 7. stability of DTR image.
  • 豊田 裕康, 阿部 東彦, 簑浦 登美雄
    1975 年 38 巻 1 号 p. 14-19
    発行日: 1975/02/25
    公開日: 2011/08/11
    ジャーナル フリー
    It was recently reported that a microwave baking is also available for the photoresist baking. However, the baking mechanism of photoresist by microwave is not yet clear.
    The basic properties of the microwave baking are studied by measuring the dependence of the undercut length of SiO2 layer on Si substrate and IR spectra of Photoresist on microwave irradiation time and microwave power with a conventional synthetic rubber-diazide photoresist.
    The results obtained are as follows:
    (1) In the microwave baking method, the undercut length of SiO2 is minimized, when the microwave power is cut off at the moment of the surface temperature of Si02 layer to be raised to 140°C.
    (2) The degree of the oxidation of the photoresist irradiated with microwave is less compared with the conventional heating method.
    (3) Even is the case of the microwave baking in air, is not observed the resist flow which usually occurs in the case of the conventional one.
    (4) The SiO2 undercut length with microwave baking is shorter than that with the conventional one.
  • 大野 信
    1975 年 38 巻 1 号 p. 20-26
    発行日: 1975/02/25
    公開日: 2011/08/11
    ジャーナル フリー
    When a normal photochromic benzospiran componnd ([A]) in poly-(vinyl-chloride) (PVC) matrix was exposed successively to electrons (15 kV) after UV ray (365 nm), the magenta color turned rapidly to yellow. The magenta one was a reversible product ([B]) and the yellow one was an irreversible product ([C]).[C] was a reaction product between [B] and a chlorinated component which was liberated from PVC. The conversion from [A] to [B] was faster when the distribution of [B] in a specimen was more diluted. The coloration of [B] which was connected with the coloration of [C] was thought to be able to apply for a positive type electron beam recording medium.
    The reverse photochromic benzospiran, usually colored in the dark, looked to be useful to reduce the preirradiation of UV ray for making [B] and the postirradiation for a read out stage. But it was influenced by a matrix and not to express its own color. So that a distinct color change did not appear by the electron bombardment.
    It was found that the normal photochromic spiran was colored thermally by an addition of diazonium compound. Its color did not affected by a materix and was changed apparently with the bombardment. This combined materials system looked to be used as substitute for the reverse photochromic one.
  • 小泉 定弘
    1975 年 38 巻 1 号 p. 27-36
    発行日: 1975/02/25
    公開日: 2011/08/11
    ジャーナル フリー
    Louis Jacques Mandé Daguerre (1787-1851) published the “Historique et Description des Procédés du Daguerréotype et du Diorama” in August 1839. Within five months after its publication, more than thirty editions, translations and summaries of the book are said to have appeared. Beaumont Newhall wrote in his “History of Photography”(1964), “to list their places of publication is to plot the spread of the daguerreotype throughout the Western world ”.
    Last year I discovered, by chance, that the “Description pratique du procédé nommé le Daguerréotype”, a chapter of L. J. M. Daguerre's above-mentioned book had been translated in Japan, probably in the era of Edo.
    “Inshokeibi” is the title name of the translation, and the translator is Mr. Sanjin Osho. This is his pen name, and his true name is Gentan Sugita. He is a Dutch scholar who translated another manual on Daguerreotype.
    In this research I made a comparative study of the Japanese translation and the English and French editions. I presume Sanjin Osho's translation was made from a Dutch edition, which is not yet discovered.
  • 川崎 正美, 原田 賢二
    1975 年 38 巻 1 号 p. 37-40
    発行日: 1975/02/25
    公開日: 2011/08/11
    ジャーナル フリー
    The reaction products of thiocyanate and salt of carboxylic acid were found to be useful as a rapid fixing agent of silver halide emulsion.
    The products were prepared by the reaction of thiocyanate salt and salt of aliphatic or aromatic carboxylic acid such as sodium hydrogen citrate, sodium hydrogen succinate, and potassium hydrogen phthalate in the presence of acid or carbonate salt at a temperature in the neighborhood of 75°C for about 2.5 hours.
    The products were more stable to light and humidity than thiocyanate. The hygroscopicity of the products decreased by 10-20 percent as compared with that of thiocyanate salt.
    The fixing time with the products was shorter than that with thiosulfate salts. The clearing time was reduced in the order of nNH4SCN·NaC4H3O4, nNH4SCN·NaC4H5O6, nNH4SCN·NaC4H5O4, nNH4SCN·KC8H5O4, nNH4SCN·Na2C6H6O7.
  • 古川 成俊
    1975 年 38 巻 1 号 p. 41-51
    発行日: 1975/02/25
    公開日: 2011/08/11
    ジャーナル フリー
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