3CCDカラーカメラの一方式

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タイトル別名
  • A Three-chip CCD Color Camera
  • 3CCD カラー カメラ ノ イチホウシキ

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A color television camera with a resolution high enough for practical use employing three interline-transfer CCD imagers is proposed.<BR>In the imagers, buried channel shift registers and overflow drains are employed which suppress the blooming phenomenon and realize higher transfer efficiency than surface channel shift registers.<BR>Transparent photosensing SnO2 electrodes rather than the conventional poly-silicon electrodes are applied to the imagers to achieve higher blue sensitivity.<BR>Instead of the frame integration mode, the field integration mode of the interline-transfer CCD is used to suppress undesirable equivalent signal lag caused by the temporal and spatial functions of the CCD.<BR>In order to realize high resolution, a spacially offset imaging technique is introduced, and the corresponding mechanical and electrical compensation techniques for misregistration between the three CCD's are discussed.<BR>The horizontal resolution of 280 TV lines and the SNR of close to 40 dB are achieved for a scene illumination of 700 lx at F : 2.0.

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