< Topic >The X-ray tube focus and the occasion where distance of subject or the x-ray sensing station is measured, the X-rays equipment which lightens the burden of the operator and the suffering inspection person is offered.SolutionsThe exact size division where the offset division and the Tip of the measuring tape which delete the size which is suitable to the distance to the attaching position of the measuring tape from the focus of the X-ray tube start from zero is displayed in the measuring tape which belongs to the collimator.< Choice figure >Drawing 1【課題】X線管焦点と被写体またはX線検出部との距離を測定する際に、術者および被検者の負担を軽減するX線撮影装置を提供する。【解決手段】コリメータに付属した巻尺に、X線管の焦点から巻尺の取付位置までの距離に相当する寸法を削除したオフセット目盛と、巻尺の先端がゼロから始まる実寸目盛を表示する。【選択図】図1
