optical automatic rangingとは 意味・読み方・使い方

To solve the following problem; it is impossible to accurately measure a distance between an irradiated surface and an objective lens, provided that the center of the optical axis on the irradiated surface machined with laser beams is used as a ranging reference position for automatic-focusing.例文帳に追加

レーザ光による加工が行われている被照射面の光軸の中心を自動焦点の測距の基準位置とすると、正確な被照射面と対物レンズとの間の測距を行うことができない。 - 特許庁