All issues
Volume 56 (1993)
- Issue 6 Pages 411-
- Issue 5 Pages 351-
- Issue 4 Pages 259-
- Issue 3 Pages 167-
- Issue 2 Pages 104-
- Issue 1 Pages 3-
Volume 56, Issue 5
Displaying 1-5 of 5 articles from this issue
- |<
- <
- 1
- >
- >|
-
Sanemi SONOIKE, Fumihiko SANO1993 Volume 56 Issue 5 Pages 351-356
Published: October 25, 1993
Released on J-STAGE: August 11, 2011
JOURNAL FREE ACCESSLight scattering behaviors of silver chloride crystals cooled from the melt and containing silver specks were observed with an Ar laser beam at 514.5nm and other wavelengths. Generally, by white light irradiation of the crystal, the scattered light intensity of the laser beam once increased and then turned to decrease with the irradiation time. The intensity changes were explained as due to growth of silver specks in the crystal accompanied by changes of electron density and quantum size effect. These let thescattered intensity go through a maximum where increasing absorption caused by shortening of the lifetime of conduction electrons in silver aggregates overcomes scattering.View full abstractDownload PDF (795K) -
Minoru KANEGAE, Yusuke OKAWA, Hiroyuki KOBAYASHI, Takashi OHNO, Atuyos ...1993 Volume 56 Issue 5 Pages 357-363
Published: October 25, 1993
Released on J-STAGE: August 11, 2011
JOURNAL FREE ACCESSIt is known that high molecular weight components of gelatin (Fraction H) are degraded by irradiation of ultrasound.
We have been studying this process minutely with a rather high concentration solution of gelatin. In this study, we irradiated a low concentration (less than 1.00 wt%) gelatin solution with ultrasound in order to study the effect of dilution.
The degradation process of fraction H was also found to be of the first order and dilution had no special effect on the degradation process.
In the process of the experiment, we found out the contents of fraction H determined by HPLC differed with the concentration of the sample gelatin in the case of less than 1%.
There was a possibility that fraction H was degraded by dilution and it was reconstituted by reconcentration of the diluted solution.View full abstractDownload PDF (807K) -
Takashi OKADA1993 Volume 56 Issue 5 Pages 365-368
Published: October 25, 1993
Released on J-STAGE: August 11, 2011
JOURNAL FREE ACCESSLens-shutter camera is required to be light weight and compact with high performance at low cost. By developing a new four-element zoom optics with a comprehensive use of aspherical surfaces, we have succeeded in satisfying all the requirements. This report explains the behavior of aspherical surfaces and its related technology.View full abstractDownload PDF (434K) -
Kenji SUZUKI1993 Volume 56 Issue 5 Pages 369-371
Published: October 25, 1993
Released on J-STAGE: August 11, 2011
JOURNAL FREE ACCESSAn eye controlled auto focus system was developed for SLR cameras, It detects where the photographer sees in the view-finder, then determines among 5 focus points provided in the view field, the nearest one to where he sees. The camera focuses the objective lens, using the focusing information obtained from the above determined focus point. The eye detection is achieved by an opto-electronical system, consisting of 2 IREDs, a small size area CCD image sensor, and a micro-computer. The capability and precision of the sight-line detection is enough to choose one of the arrayed focus points by the photographer's eye movement. It operates within a blink period, and even for those people with glasses. This paper discusses the concept and the structure of the eye controlled auto focus system built in our new SLR camera products.View full abstractDownload PDF (2163K) -
Tomiki IKEDA1993 Volume 56 Issue 5 Pages 372-380
Published: October 25, 1993
Released on J-STAGE: August 11, 2011
JOURNAL FREE ACCESSDownload PDF (3031K)
- |<
- <
- 1
- >
- >|