光ピックアップの光軸・焦点自動調整

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タイトル別名
  • Automatic Adjustment of Optical Axis and Focus for Optical Pickup.
  • ヒカリ ピックアップ ノ コウジク ショウテン ジドウ チョウセイ

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抄録

Automatic adjustment of optical axis and focus for CD player optical pickup was achieved by developing undermentioned element technologies. (1) The optical axis inquiry method to look for the optical axis at all over and high speed was developed by changing the inquiry route automatically when the detector movement exceeds the permissible operation range. (2) Highly accurate adjustment method of the optical detector position was achieved by dividing adjustment process into rough adjustment and minuteness adjustment and by applying each specialized measurement algorithm respectively. (3) Focus adjustment method of the focus lens was developed by eliminating the influence of the signal disorder. (4) High accurate screw tightening method was developed by forecasting and correcting the displacement caused by screw tightening. These technologies were synthesized, and high accuracy automatic adjustment equipment for the optical axis and the focus was developed.

収録刊行物

  • 精密工学会誌

    精密工学会誌 64 (4), 541-545, 1998

    公益社団法人 精密工学会

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