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By optimizing an anisotropic light‐diffusing film with an internal refractive‐index distribution polymer structure and an isotropic light‐diffusing adhesive, we have developed a reflective display configuration that can efficiently diffuse‐reflect light incident from four azimuth directions. This configuration can be applied to tablet display devices that are rotated during use.
We have evaluated optical and electrical characteristics of Ga-Sn-O (GTO) films deposited using mist chemical vapor deposition (CVD). It was found that the GTO film is transparent, which suggests the energy gap is wide. The X-ray diffraction (XRD) indicated that the GTO film was crystallized, but the crystal structure is not clarified now. It was also found that the sheet resistance decreases as the...
We have evaluated magnetoresistance (MR)effect of a Ga-Sn-O (GTO) film deposited using mist chemical vapor deposition (CVD). It is found that the as-deposited film shows negative MR effect, whereas the annealed film shows positive MR effect. We assume that this phenomenon occurs because the carrier transportation shifts from the Anderson localization to band transportation as the film structure changes...
We have evaluated Ga-Sn-O (GTO) films fabricated using mist chemical vapor deposition (CVD). First, it is found that the GTO films are roughly transparent. Moreover, as the deposition temperature decreases, the transmittance becomes higher. Next, it is found that even if the carrier gas speed changes, the sheet resistance is roughly the same. However, as the composition ratio in the material solution...
This paper proposes the laser extraction system by adjusting camera parameters. This system is based on presentation tool with laser pointer, and it detects the laser spot overlapped with projection image by CCD/CMOS camera. In this research, we confirmed the method of extracting laser spot from projection image by adjusting camera parameters. We determined essential parameters and optimal threshold...
This paper proposes a shape classification system using Genetic Programming. In this research, the classification tree for shape identification is generated based on velocity vectors drawn by a laser pointer. We confirm the classification tree can be used for shape identification, by adjusting the function set, target program size, crossover rate, and mutation rate to optimize Genetic Programming...
This paper proposes a meta-heuristic image processing application for mobile robot navigation. It classifies figures that are drawn on a wall by hand with a laser pointer. Image processing technique extracts optical flow of the laser beam trail, which represents vectors along edges of shapes. Genetic programming learns geometric characteristics of laser trail shapes and creates classification algorithm...
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