巻号一覧
37 巻, 3 号
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和久井 孝太郎1974 年 37 巻 3 号 p. 107-116
発行日: 1974/05/31
公開日: 2011/08/11
ジャーナル フリーThis paper describes the low light level imaging technique using electronics and television engineering. The primarily motive forces for the development of low light level imaging systems were military requirements for night operations. But during the last few years many low light level TVs and other imaging systems applied for science, industrial and broadcasting have been developed.
It goes without saying that most important device in the low light level TV system is pickup device. Pickup devices are equivalent materials as sensitive plate or film for the photography. Various types of image intensifiers were developed for direct-view applications. Principles of these imaging devices were applied to the problem of low light level TV by coupling to existing TV cameras.
The high utility of these new low light level imaging instruments results from the development of imaging devices with a quantum efficiency better than that of film or the human eye. However, even instruments with high quantum efficiency, the sensitivity (resolution and signal-to-noise ratio) is limited by the number of available photons at photosensitive surface. The property of several of these imaging devices, such as resolving capability and signal-to-noise ratio, as a function of the input luminous flux have been compared.抄録全体を表示PDF形式でダウンロード (3860K) -
マゼンタ・ピラゾロン・アゾメチン色素溶液の亜硫酸イオンによる退色反応機構の定性的検討宮川 俊夫, 渡辺 信, 石川 成直1974 年 37 巻 3 号 p. 117-124
発行日: 1974/05/31
公開日: 2011/08/11
ジャーナル フリーA magenta pyrazolone azomethine dye was prepared by oxidative coupling of p-diethylaminoaniline with 1-phenyl-3-methyl-5-pyrazolone.
The dye was bleached in buffered EtOH-H2O solution containing excess sodium sulphite.
The reaction rate of the dye bleaching was observed in the range of pH 5-10, several ten minutes, at 85°C, in N2 gas.
Regeneration ratio of the dye was about 100% by addition of HCHO, while it was only 3-5% in the case of K2S2O8 adding.
The reaction scheme was concluded as follows:
the main reaction
dye+SO32-+H+→H·dye·SO3-complex (1)
the side reaction
dye+SO32-+H2O→leuco dye+SO42- (2)抄録全体を表示PDF形式でダウンロード (783K) -
中山 隆雄, 小門 宏, 井上 英一1974 年 37 巻 3 号 p. 125-132
発行日: 1974/05/31
公開日: 2011/08/11
ジャーナル フリーThe authors have presented a new imaging system involving the photo-electrolytic image dye formation on the zinc oxide photoconductive layer. To prepare the imaging sensor, 4 (p-dimethylaminostyryl) quinoline was coated on or dispersed in the zinc oxide-resin layer which was supported on the Aluminium sheet.
We have demonstrated the dependence upon several factors for dye formation. The mechanism of the photo-electrolytic reaction have been discussed from the experimental results.抄録全体を表示PDF形式でダウンロード (954K) -
田中 啓一1974 年 37 巻 3 号 p. 133-137
発行日: 1974/05/31
公開日: 2011/08/11
ジャーナル フリーBinding of palladium (II) ion by gelatin was studied by measuring the absorption spectrum of PdCl4-2 (λmax=280 nm) in the presence of gelation.
Carboxyl or amino groups were blocked chemically by methylation or acetylation, respectively, and methionine residue was oxidized by hydrogen peroxide. The effects of modified gelatin, several amino acids and related substances on the absorption spectrum of PdCl4-2 suggest the role of the functional groups of gelatin to react with palladium (II) ions.
The formation of some species of palladium (II) gelatinates was suggested from equilibrium dialysis.
pH titration of the mixture containing potassium tetrachloropalladate (II) and gelatin showed that palladium (II) ion was firmly bound by gelatin below pH 6.0.
It was concluded that palladium (II) ion formed a chelate or a simple gelatinate with any of histidine, lysine, methionine, glutamic acid and aspartic acid residues.抄録全体を表示PDF形式でダウンロード (626K) -
川崎 正美, 原田 賢二1974 年 37 巻 3 号 p. 138-144
発行日: 1974/05/31
公開日: 2011/08/11
ジャーナル フリーPatterns of reticulated film that caused by treatment with thiocyanate salts were observed with an interference microscope by reflected light.
The results obtained were as follows:
1) The typical pattern of reticulated film was a net-work or was a scattered leaves-like figure, depending on procedure.
2) Production of reticulation was affected by nature of photographic gelatin.
3) A cross-section of the reticulated film looked like an eaves gutter, which was very shallow.
4) The developed silver particles were aggregated on the edge of the gutter.抄録全体を表示PDF形式でダウンロード (15064K)
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