Measuring Device

A measuring device comprising:

• a stage holding unit;
• a stage held by the stage holding unit and on which a measuring object is placed;
• a head unit including a light projecting unit and first and second light receiving units, the light projecting unit irradiating the measuring object placed on the stage with measurement light having a pattern, the first and second light receiving units receiving the measurement light reflected by the measuring object and outputting a light reception signal representing a light reception amount;
• a coupling part that fixedly couples the head unit and the stage holding unit such that the measurement light is guided obliquely downward from the light projecting unit to the measuring object, and such that optical axes of the first and second light receiving units extend obliquely downward;
• a selection section that receives selection of one of the first and second light receiving units;
• a point cloud data generating section that generates point cloud data representing a three-dimensional shape of the measuring object based on the light reception signal output from the selected first or second light receiving unit;
• and
• a measuring section that receives designation of a point to be measured in the measuring object and calculates a measurement value of the designated point based on the point cloud data generated by the point cloud data generating section,
• wherein the first light receiving unit has a first imaging visual field,
• the second light receiving unit has a second imaging visual field smaller than the first imaging visual field, and
• in a space on the stage, the second imaging visual field is included in the first imaging visual field, and the optical axis of the second light receiving unit is located below the optical axis of the first light receiving unit.