Method and device for ascertaining the orientation of a drill relative to a plane

A drill, comprising:

• a device for ascertaining an orientation of a drill relative to a plane, the device being connectable to the drill
• wherein the device includes:
• a laser distance measuring unit by which, from a prespecified position relative to the plane, a first distance to a first point in the plane and a second distance to a second point in the plane is measurable;
• and
• an evaluation unit configured so that the orientation of the device relative to the plane is ascertainable based on the first distance and the second distance;
• wherein the laser distance measuring unit has a first laser distance meter and a first micromirror, pivotable about a first pivot axis, for deflecting a laser beam of the first laser distance meter,
• wherein the laser beam can be radiated in a first direction of radiation by the first laser distance meter,
• wherein one of the following is satisfied:
• (i) the laser distance measuring unit has a second laser distance meter and a second micromirror, pivotable about a second pivot axis, for deflecting a laser beam of the second laser distance meter, or (ii) the first micromirror is pivotable about a second pivot axis that is situated perpendicular, to the first pivot axis of the first micromirror, and
• wherein the laser distance measuring unit includes a diverting optical mechanism situated so that a laser beam deflected by the first micromirror is divertable.

A method for ascertaining an orientation of a drill relative to a plane, the method comprising:

• measuring, by a laser distance measuring unit, from a prespecified position relative to the plane, a first distance to a first point in the plane and a second distance to a second point in the plane;
• and
• ascertaining, based on the first distance and the second distance, the orientation of the drill relative to the plane;
• wherein the laser distance measuring unit has a first laser distance meter and a first micromirror, pivotable about a first pivot axis, for deflecting a laser beam of the first laser distance meter,
• wherein the laser beam can be radiated in a first direction of radiation by the first laser distance meter,
• wherein one of the following is satisfied:
• (i) the laser distance measuring unit has a second laser distance meter and a second micromirror, pivotable about a second pivot axis, for deflecting a laser beam of the second laser distance meter, or (ii) the first micromirror is pivotable about a second pivot axis that is situated perpendicular, to the first pivot axis of the first micromirror, and
• wherein the laser distance measuring unit includes a diverting optical mechanism situated so that a laser beam deflected by the first micromirror is divertable.