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Volume 19 (1956)
- Issue 4 Pages 154-
- Issue 3 Pages 109-
- Issue 2 Pages 65-
- Issue 1 Pages 5-
Volume 19, Issue 3
Displaying 1-6 of 6 articles from this issue
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Koichiro TOMITA, Minoru SHIMIZU1956 Volume 19 Issue 3 Pages 109-123
Published: November 30, 1956
Released on J-STAGE: August 11, 2011
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Goro MIYAMOTO, Isamu MURAYAMA, Toshio MIYAGAWA, Takeshi SAKABE1956 Volume 19 Issue 3 Pages 124-129
Published: November 30, 1956
Released on J-STAGE: August 11, 2011
JOURNAL FREE ACCESSOptimal amounts of phenidone and hydroquinone in D-76 type PQ developers (pH 8.7), are 0.2g and 5.0g per 1000cc each other, as shown in Fig. 1 and 2. This Formula (PQE) gives slightly more fog than D-76, but addition of 0.2g KBr or 0.01g benzotriazole retards fog (Fig. 3).
Optimal pH ranges have been estimated in several kinds of developing formula (Fig. 4-13).
PQ-MK (Fig. 15, 16) and PM-MK (Fig. 17, 18) developers give sensitivity about two to three times more than D-76.View full abstractDownload PDF (661K) -
Hiroshi KUBOTA, Minoru TAMURA, Hitoshi OHZU1956 Volume 19 Issue 3 Pages 130-134
Published: November 30, 1956
Released on J-STAGE: August 11, 2011
JOURNAL FREE ACCESSPlacing a photographic negative in an aperture stop of an imaging system, thespctrum of Ag grains in the photographic emulsion is shown as the Fraunhofer's diffraction pattern. Power spectra of several commercial photogaphic materials were measured in this way.
Autocorrelation functions of commercial photographic emulsions were measured optically, using recording optical autocorrelator constructed in the author's laboratory, and a constant A, which determines granularity characteristics, was introduced.
Power spectrum obtained by Fourier transformation from autocorrelation function shows good agreement with the value of power spectrum obtained by diffraction method.View full abstractDownload PDF (5763K) -
[in Japanese]1956 Volume 19 Issue 3 Pages 135-139
Published: November 30, 1956
Released on J-STAGE: August 11, 2011
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1956 Volume 19 Issue 3 Pages plate1
Published: November 30, 1956
Released on J-STAGE: August 11, 2011
JOURNAL FREE ACCESSDownload PDF (1391K) -
1956 Volume 19 Issue 3 Pages plate2
Published: November 30, 1956
Released on J-STAGE: August 11, 2011
JOURNAL FREE ACCESSDownload PDF (2075K)
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