In optical measuring unit 2, optical measuring unit the component the Tip of 41 for proofreading which becomes the lighting target of illumination light the occasion where does the proofreading treatment of 2 and measurement probe 3 and measurement probe 3 is communicated to interposition possible interposition section 42a and interposition section 42a, component 41 for proofreading is communicated to storage section 42b and the storage section 42b which movement possibly are stored according to the complete penetration direction of interposition section 42a, the opening 42c containment the part where inside switch section 25 it can add control force at least is formed, in measurement probe 3 being interposed from interposition section 42aDepending, when component 41 for proofreading reaches to the specified position inside storage section 42b, in order to add control force to switch section 25, when the frame component 42 which is laid out vis-a-vis switch section 25 and power source 21 activates, the control section 27 which does the control which starts proofreading treatment and, it has.光学測定装置2において、光学測定装置2および測定プローブ3の校正処理を行う際に照明光の照射対象となる校正用部材41と、測定プローブ3の先端を挿入可能な挿入部42aと、挿入部42aに連通し、挿入部42aの貫通方向に沿って校正用部材41を移動可能に収容する収容部42bと、収容部42bに連通し、スイッチ部25のうち少なくとも操作力が加えられる部分を保持する開口部42cとが形成され、挿入部42aから測定プローブ3が挿入されることによって校正用部材41が収容部42b内の所定位置に達したときにスイッチ部25に操作力を加えるようにスイッチ部25に対して配置される筐体部材42と、電源21が起動した場合、校正処理を開始する制御を行う制御部27と、を備える。
