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Tatsuo Mishima, Hideaki Haneishi, Takeyuki Ajito, Takeshi Yamazaki
2005 Volume 68 Issue Suppliment1 Pages
104-105
Published: 2005
Released on J-STAGE: August 11, 2011
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A technique for acquisition and synthesis of moving picture with high resolution and wide angle is presented for projection onto dome screen. Basic idea is the use of multiple, inexpensive movie cameras and seamless and distortion free image synthesis. In a preliminary experiment, a digital camera was directed to six directions and images were obtained as to cover 180 degree of viewing field. Those images were synthesized properly and a very large, wide angle image was successfully produced.
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Junji Sukeno, Yoshiko Hatano, Junko Shinohara, Naoyuki Fujiyama, Kazuh ...
2005 Volume 68 Issue Suppliment1 Pages
106-107
Published: 2005
Released on J-STAGE: August 11, 2011
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We have developed the MPEG-4 video encoder for Mobile Phones.
This paper describes a scene change detecting & processing method, which can detect scene changes surely and can effectively control code creation by the result of detection and can keep the image quality good without the influence of the scene changes.
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Yoshiki ONO, Kazuhiro SUGIYAMA, Tetsuya KUNO
2005 Volume 68 Issue Suppliment1 Pages
108-109
Published: 2005
Released on J-STAGE: August 11, 2011
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This paper describes a study of a new image improvement technique for mobile phones with camera, which can improve visibility of still images. To use block partitioning and reduce memory accessing time, we have confirmed the applicability of this visibility improvement scheme about enhancement level and processing time.
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K. Oda, T. Nishimura, K. Takemura, H. Kobayashi, T. Sakamoto, T. Yamad ...
2005 Volume 68 Issue Suppliment1 Pages
110-111
Published: 2005
Released on J-STAGE: August 11, 2011
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In 2003 we made further improvements in Super-CCD, the CCD for DSCs using our exclusive technology. We developed the fine-resolution high-pixel number type CCD (HR) and a new-concept CCD (SR) incorporating high resolution technology in order to increase dynamic range. These constitute the fourth generation of the Super-CCD. Aiming for the expanding digital single lens reflex (SLR) market, we have developed an image capture element, Super-CCD SRII, with an entirely new pixel structure that achieves both high S/N ratio and outstanding optical properties, in order to improve our company's exclusive technology for the wide dynamic range image capture elementSR. Furthermore, we put it into practical use through the commercialization of FinePix S3PRO.
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Hitoshi Yamashita
2005 Volume 68 Issue Suppliment1 Pages
112-113
Published: 2005
Released on J-STAGE: August 11, 2011
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A survey shows that DSC users have complaint on poor image quality of their cameras under dark conditions. By analyzing those “disappointing” photos we concluded that it is useful to increase ISO speed of a camera to get faster shutter speed and reduce the chance of camera shake or blurring of moving subjects, and also to achieve longer flash light range. But higher ISO speed sometimes induces unacceptable amount of luminance/chrominance noise. We have improved our image sensor and imageprocessing algorithm for reducing noise, and developed a compact DSC which can deliver acceptable photos even at its maximum ISO speed of 1600.
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Mitsuhiro Uchida
2005 Volume 68 Issue Suppliment1 Pages
114-115
Published: 2005
Released on J-STAGE: August 11, 2011
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NATURAL PHOTO SYSTEM (NP system) is a newly developed system that enables high quality non-flash photos. 135-format film camera “NATURA S”, and IS01600 color negative film “NATURA1600” are the first products for the NP system, and they are available in October 2004 in Japan. NP system maximized the high-sensitivity, fine grain and wide exposure latitude of silver halide film. The combination of IS01600 35mm film, newly developed compact camera with a F1.9 lens and a unique exposure program that controls exposure level to the over exposure depending on the light value, makes it possible to take high quality pictures without flash.
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Naoyuki Murakami
2005 Volume 68 Issue Suppliment1 Pages
116-117
Published: 2005
Released on J-STAGE: August 11, 2011
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Hiroaki Iino, Junichi Hanna
2005 Volume 68 Issue Suppliment1 Pages
118-119
Published: 2005
Released on J-STAGE: August 11, 2011
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We investigated the carrier transport in poly-crystalline phase of a discotic liquid crystal, 2, 3, 6, 7, 10, 11-hexabutyloxy triphenylene. We revealed that hole could drift in the polycrystals and its mobility was obtained to be 10
-2 (cm
2Ns) by time of flight measurement. This result indicates that there are less structural defects that degrade charge carrier transport in polycrystals. This is thanks to the well-defined molecular alignment that was formed through the phase transition, from a liquid crystalline phase to poly-crystalline phase.
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Tooru Toda, Junichi Hanna, Tadaaki Tani
2005 Volume 68 Issue Suppliment1 Pages
120-121
Published: 2005
Released on J-STAGE: August 11, 2011
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The current voltage characteristics of a liquid-crystalline semiconductor 2-(4'-Octypheny1)-6-dodecyloxynaphthalene (8-PNP-012) with various electrodes was measured and analyzed to study the hole injection from the electrodes to 8-PNP-012. It was found that the hole injection was depressed by the dipoles formed between electrodes and 8-PNP-012 when they were in contact with each other. The modification of the surface of an Au electrode with a dipolar self-assembled monolayer (4-nitrophenylthiolate) could significantly enhance the hole injection.
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D. Nishioka, Y. Nishiyama, T. Tanaka, N. Kobayashi
2005 Volume 68 Issue Suppliment1 Pages
122-123
Published: 2005
Released on J-STAGE: August 11, 2011
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Polyaniline (PAn) has been successfully prepared by photopolymerization of dimeric aniline via photocatalytic reaction with Ru (bpy)
32+. We investigated template photopolymerization in the presence of DNA in order to prepare PAn with longer π-conjugation length. The PAn/DNA complex formed in an aqueous solution was water-soluble, leading to improve the processability of PAn for devices. The PAn/DNA complex film containing Ru (bpy)
32+ shows red light emission by applying a voltage. The device,
i.e., Al/PAn-DNA complex+Ru (bpy)
32+/ITO, emitted light over a bias voltage of 7 V, and the luminance increased with increasing bias voltage. A maximum luminance of 1500 cd/m
2 was observed.
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Influence of Ag nanoparticle shape, size, and intermediate spacer layer
Shuki Mine, Mitsuo Kawasaki, Masahiro Kawasaki
2005 Volume 68 Issue Suppliment1 Pages
124-125
Published: 2005
Released on J-STAGE: August 11, 2011
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We observed highly enhanced fluorescence from a composite film consisting of a layer of significantly large Ag nano islands on which dye monomers were deposited with an intermediate molecular spacer in between. To clarify the mechanism of such a strong enhancement effect, we examined the influence of Ag islands shape, size, and spacer layer thickness. It was found that Ag island films with relatively flat shaped and considerably large discrete nanoparticles produced the highest enhancement that peaked at 10-20Å spacer thickness and tailed beyond-100Å away from the Ag island surface. The results suggest that the strong enhancement arises from an anomalously efficient emission from the induced dipoles in the Ag islands.
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Takayuki Uchida, Toshiaki Ochiai, Katsuhide Tsubokawa, Toshifumi Mimur ...
2005 Volume 68 Issue Suppliment1 Pages
126-127
Published: 2005
Released on J-STAGE: August 11, 2011
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For the cathode of Transparent Organic Light Emitting Device (TOLED), ITO film was deposited using RF magnetron sputtering with Cs-vapor introduction during the sputtering process. The work-function of the Cs incorporated ITO film was 4.3 eV with electric conductivity and it was very stable at the atmospheric environment over extended period of time. It was shown that this Cs incorporation technique was effective for the incorporation of Cesium in the ITO film and that it made possible ITO film with low work function
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Masahiro Ichihara, Akiko Konagai, Takayuki Uchida, Toshiaki Ochiai, Ka ...
2005 Volume 68 Issue Suppliment1 Pages
128-129
Published: 2005
Released on J-STAGE: August 11, 2011
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We patterned transparent organic light emitting devices (TOLEDs) and made seven segment transparence indication elements. The circuit drivers which can arbitrary number were constituted by Peripheral Interface Controller (PIC). Furthermore, the transparent organic light emitting devices with R, G, B luminance materials were investigated the characteristic of each devices.
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Satoshi Uchida
2005 Volume 68 Issue Suppliment1 Pages
130-131
Published: 2005
Released on J-STAGE: August 11, 2011
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Here, in this work, a 28 GHz microwave irradiation process for flexible dye-sensitized solar cells is newly proposed. The resulted cell performance improved by microwave heating from 0.45 % to 0.74 %at 2.45 GHz, and up to 2.16 % at 28 GHz. Relatively high open circuit voltage of 685 mV at 28 GHz irradiation is considered to the better electrical connectivity of each nano size TiO
2 particles. This well firing resulted higher photo-electron conversion efficiency.
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Ming MA, Toyohide TANAKA, Norihisa KOBAYASHI
2005 Volume 68 Issue Suppliment1 Pages
132-133
Published: 2005
Released on J-STAGE: August 11, 2011
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Synthetic polypeptides with rigid α-helical structure are regarded as promising materials for molecularly ordered membrane with high charge or energy transport properties. We prepared Ru (bpy)
32+/α-helical poly (L-glutamic acid) (PGA) complex to study charge transport properties and its application to optoelectric devices. Substitution ratio of long alkyl chain group and polypeptide secondary structures were characterized by
1H-NMR and IR spectra. The interaction between PGA and Ru (bpy)
32+ was analyzed with CD and fluorescence spectroscopy. The structure of PGA/Ru (bpy)
32+ complex was estimated. Further, we prepared EL device with PGA/ Ru (bpy)
32+ complex to discuss the emission mechanism.
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S. Miura, M. Nishimura, N. Kobayashi
2005 Volume 68 Issue Suppliment1 Pages
134-135
Published: 2005
Released on J-STAGE: August 11, 2011
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We studied electrochemical properties of electrochromic materials, which showed reversible color change by electronic stimuli, from a view point of paper-like electronic imaging device. Electrochemical materials showing color changes from clear to the three primary colors such as RGB or CMY should be required to realize full color paper-like electronic imaging decvice. In this paper, we studied electrochromic characteristics of phthalate derivatives from the view point of its color and the electrochromic mechanism for paper-like display.
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Katsumi Yamada, Shigeharu Urabe
2005 Volume 68 Issue Suppliment1 Pages
136-137
Published: 2005
Released on J-STAGE: August 11, 2011
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We have a great interest in the application of nano-brush film as the working electrode for electrochromic device. To improve the response and the life cycle of the electrochromic device, polypyrrole films were prepared on Au nano-brush electrode by template synthesis. And, their electrochemical characteristics were compared with polypyrrole film electropolymerized on Au planar electrode. It was found that the polypyrrole film on the nano-brush electrode showed a fine electrochemical stability.
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Katsumi Yamada, Junji Sone, Jun Chen, Shigeharu Urabe
2005 Volume 68 Issue Suppliment1 Pages
138-139
Published: 2005
Released on J-STAGE: August 11, 2011
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An aqueous solution, acting as a photo-induced electron transfer system, was prepared using the tris (2, 2'-bipyridyl) ruthenium complex, methylviologen and pyrrole to demonstrate the multiphoton sensitized polymerization of pyrrole. A conductive polypyrrole was obtained on a glass substrate by illumination at 800 nm using a femtosecond pulses laser. Furthermore, we have already revealed a simple pattern of the polypyrrole by driving the beam focus in the XY directions.
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Mitsuo Kawasaki, Mitsuhiro Hori
2005 Volume 68 Issue Suppliment1 Pages
140-141
Published: 2005
Released on J-STAGE: August 11, 2011
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Pt, Pd, and Pt-Ni nano island films consisting of closely packed fine nanoparticles less than few tens of nm can be used as simple high-density holographic recording media for nanosecond laser light, as it induces a large reconstruction in morphology (aggregative granulation) in the nano-island film to yield an optically transparent phase in the whole visible region. In the present study, we have constructed a new extended system with a three layered structure, consisting of high reflectance material (bottom layer), transparent material (intermediate layer), and the nano-island film (ultrathin layer on top). The highly efficient and large reflectance modulation in this system depending on the layering parameters allowed us to improve the first-order diffraction efficiency of the holographic interference patterns to-15%.
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H. Miyajima, F. Shiba, Y. Okawa
2005 Volume 68 Issue Suppliment1 Pages
142-143
Published: 2005
Released on J-STAGE: August 11, 2011
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It is known that the image quality of dichromated gelatin (DCG) phase hologram strongly depends on pre-hardening. In the present study, we determined Al (III) and Cr in the processed gelatin layer, and gelatin eluted from the gelatin layer during the development, for evaluating the effect of the pre-hardening by alum. It was found that the diffraction efficiency was dominated by the strength of pre-hardening through solubility of the un-exposed parts (dark fringes) rather than that of photo-hardening by exposure, and that the reactivity of gelatin for pre-hardening reaction is one of the most essential factors.
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Seiji SHIRONO
2005 Volume 68 Issue Suppliment1 Pages
144-145
Published: 2005
Released on J-STAGE: August 11, 2011
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Image documentation of the wall paintings of Takamatsuzuka Tumulus, including color, black-and-white and infrared photography, was done at the time of their discovery in 1972. There are the only image documentation done of the wall paintings, and most of the images of the wall paintings of Takamatsuzuka Tumulus used today are those taken at the time of discovery. But now that 30 years have passed since their discovery. it was decided to let the public know the details of the paintings. For this purpose, investigation and photographing of the paintings were conducted from September 2002 to April 2003.
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