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Fast adjustment method of spherical aberration and focus offset by elliptic equation was developed. In the case of Blu-ray disc™, spherical aberration is increased because of high NA optical system. In this paper, we introduce our new adjustment method of spherical aberration and focus offset and experimental result of the effectiveness of this method.
Progressive Differential Push-Pull (DPP) method was developed. In case of dual layer Blu-ray disc recording, conventional DPP signal is disturbed by the stray lights reflected from other recording layer and tracking servo sometimes becomes unstable. This paper presents an example of optical head for dual layer Blu-ray Disc recording. Photo detector of the optical head to suppress the influence of...
Progressive Differential Push-Pull (DPP) method was developed. In case of dual layer Blu-ray disc recording, conventional DPP signal is disturbed by the stray lights reflected from other recording layer and tracking servo sometimes becomes unstable. This paper presents an example of optical head for dual layer Blu-ray Disc recording. Photo detector of the optical head to suppress the influence of...
SH-PTP2 is a protein-tyrosine phosphatase with src homology-2 (SH2) domains and shown to be highly expressed in the rat brain. Light microscopic immunohistochemistry showed that specific immunoreactivity was widely distributed, most abundant in neurophil, weak in neuronal somata, and absent from white matter. By electron microscopic immunohistochemistry, intense labeling is observed on synapses and...
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