The appropriate application device has been disclosed the white optical endoscope, white light and in order to make the synthetic photographing endoscope of fluorescence convert. The said application device in the optical terminal which is the distal (2036) edge of the endoscope, makes that it makes the optical element come in contact like the optical filter easy. The said application device is connected with the positioning mechanism which is in the distal (2036) edge of the endoscope, in order to be release possible, supports the optical element in the optical terminal and the open part where it can adjust position. The optical element is released in proximal direction by pushing the operation element.< Selective figure > Figure 5白色光内視鏡を、白色光と蛍光の合成撮影内視鏡に変換させるために適切な適用装置が開示されている。該適用装置は、内視鏡の遠位端にある光学端子に、光学フィルタのような光学素子を付着させることを容易にする。該適用装置は、内視鏡の遠位端にある位置決め機構とかみ合い、光学端子と位置が合わせられる開口部に光学素子を解放可能なように支持する。光学素子は、作動要素を押すことによって近位方向に解放される。【選択図】 図5
