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Volume 41 (1978)
- Issue 6 Pages 377-
- Issue 5 Pages 301-
- Issue 4 Pages 229-
- Issue 3 Pages 159-
- Issue 2 Pages 93-
- Issue 1 Pages 5-
Volume 41, Issue 5
Displaying 1-7 of 7 articles from this issue
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Eiichi MIZUKI1978 Volume 41 Issue 5 Pages 301-316
Published: October 25, 1978
Released on J-STAGE: August 11, 2011
JOURNAL FREE ACCESSA world progress report of photographic science and technology in 1977. Articles are selected from scientific reports and news items in foreign periodicals published in 1977. Items are as follows: A) general view, silver halide photographic materials, color photography, electrophotography, non-silver photographic materials, B) theory of the latent image, theory of development, image quality and color reproduction, C) photographic processing, D) motion picture, graphic arts, radiography, E) photographic systems including cameras, light sources and image recording systems.View full abstractDownload PDF (2685K) -
Yuhsaku TAMOTO, Eitarou KUBO1978 Volume 41 Issue 5 Pages 317-324
Published: October 25, 1978
Released on J-STAGE: August 11, 2011
JOURNAL FREE ACCESSThere has been developed a read-write apparatus of mechanical scanning type which is able to do the color digital/analog hybrid processing of high quality photographic images. Using this hybrid apparatus, we can display simultaneously a digital color image and an analog color image with the respective density ranges on a single film frame and obtain a full merit of digital color without deforming the original image.View full abstractDownload PDF (16002K) -
Relative Quantum Yield of Spectral Sensitization and Immersion TreatmentTadaaki TANI, Hitoshi URABE1978 Volume 41 Issue 5 Pages 325-332
Published: October 25, 1978
Released on J-STAGE: August 11, 2011
JOURNAL FREE ACCESSStudies have been made on the mechanism of the sensitizing effect (supersensitization) of tetraazaindenols for spectrally sensitized and sulfur-sensitized AgBr emulsions. The sensitization by a tetraazaindenol was observable only when the tetraazaindenol was introduced into emulsions before their exposure to light by immersion treatment. The degree of the increase in the relative quantum yield of spectral sensitization was much smaller than that of the increase in sensitivity caused by the tetraazaindenol. These results seem to indicate that tetraazaindenols depress the recombination process introduced by sensitizing dyes in the sulfur-sesitized emulsions.View full abstractDownload PDF (703K) -
Eiichi INOUE, Hiroshi FUKUTOMI1978 Volume 41 Issue 5 Pages 333-340
Published: October 25, 1978
Released on J-STAGE: August 11, 2011
JOURNAL FREE ACCESSWhen the photosensor consisting of photopolymerizable monomer, sensitizer (or photopolymerization initiator) and resin binder on the electric conductive base was exposed to actinic light, a remarkable difference in corona charge acceptance between the unexposed area and the exposed one was found.
The charge acceptance depends widely on the exposed energy. The charge acceptance of the photosensor exposed definitly is able to be increased by several factors such as the number of photopolymerizable functional group in the unit molecule, the molecular structure of photopolymerizable monomer, the thickness of photosensitive layer and the photopolymerizable monomer concentration in the resin binder.
The sensitizer concentration in the photopolymerizable monomer shows the optimum value for the charging process.
When the photoredox sensitizer is carried out in place of energy transfer one, the sensitivity of the sensor at a reduced pressure becomes higher than that at atmospheric pressure.
It is concluded from the present investigation that the photosensor will provide useful electrostatic duplication masters which have a good image stability, long shelf life and durability.View full abstractDownload PDF (933K) -
Application of Random Carrier Stereo-Photography to Scanning Electron MicroscopeToshio FUKAYA, Teruaki HISANAGA, Hideo KOMIZU, Etsuo FUJII1978 Volume 41 Issue 5 Pages 341-346
Published: October 25, 1978
Released on J-STAGE: August 11, 2011
JOURNAL FREE ACCESSA scanning electron microscopic stereo-photography is a very useful method for the observation of micro objects in as far as their surfaces are not smooth and have many reference points.
A new method for taking a pair of SEM stereo-photographs of any micro object was proposed. An emulsion of polymer latex was used by spraying it on to the object, where micro grains of polymer latex could be deposited separately and randomly. SEM photographs of those micro grains are considered as random patterns and applied to carriers of object surface profiles. And their stereo-photographs are similar to random carrier stereo-photographs.
An auto-correlation of a random pattern can be easily obtained by many means. Therefore, optical techniques were used for measuring the fine surface profiles.View full abstractDownload PDF (7879K) -
Souichi KUBO1978 Volume 41 Issue 5 Pages 347-360
Published: October 25, 1978
Released on J-STAGE: August 11, 2011
JOURNAL FREE ACCESSAt the present time, photography is taught in many different departments, divisions and courses, and also in different guiding philosophies. These range from fine arts to pure science.
In recent years, the number of institutions offering instruction in photography markedly increased. Also academic degrees with a major in photography range from two years Associate Degree to the Doctor of Philosophy.
This report describes today's status on photographic education in the United States of America, and also introduces the photographic education programs at Rochester Institute of Technology as a typical institution for photographic education in the United States.View full abstractDownload PDF (1364K) -
[in Japanese]1978 Volume 41 Issue 5 Pages 361-362
Published: October 25, 1978
Released on J-STAGE: August 11, 2011
JOURNAL FREE ACCESSDownload PDF (269K)
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