Abstract: A method for measuring a measurement distance between a rotating laser, which emits a first laser beam that can be rotated about a rotational axis and/or a stationary second laser beam, and a laser receiver, which has a detection field with a measurement function. The rotating laser is inclined in a direction of inclination by an inclination angle. The position of incidence of the inclined laser beam on the detection field of the laser receiver is determined as a measurement point. The distance between the measurement point and a zero position of the detection field is stored as the height, and the measurement distance between the rotating laser and the laser receiver is determined using the inclination angle and the height.

Abstract: A method for checking and/or calibrating a vertical axis of a rotating laser which projects a first laser beam that can rotate about an axis of rotation and a second, stationary laser beam, using a laser receiver. The rotating laser is positioned at a measurement distance from the laser receiver, the rotating laser being oriented in a vertical position, and the laser receiver having a transverse arrangement.

Abstract: A method for checking and/or calibrating a first or a second horizontal axis of a rotating laser, which emits a laser beam rotating about an axis of rotation, with the aid of a laser receiver. The rotating laser is positioned at a measuring distance to the laser receiver, the rotating laser being aligned in the horizontal position and the laser receiver being aligned in a longitudinal arrangement.

Abstract: An optical assembly is disclosed. The optical assembly includes a collimating lens which collimates a divergent laser beam. A conical mirror has a reflecting cover surface and deforms a laser beam, which propagates in the direction of the conical axis, into an annular beam in a propagation plane perpendicular to the conical axis. An optics carrier has a first carrier element on which the collimating lens is fixed and a second carrier element on which the conical mirror is fixed. A connection device has at least one connection element which connects the first and second carrier elements to one another. The at least one connection element is arranged askew to the conical axis of the conical mirror.

Abstract: A method for measuring a measurement distance between a rotating laser, which emits a first laser beam that can be rotated about a rotational axis and/or a stationary second laser beam, and a laser receiver, which has a detection field with a measurement function. The rotating laser is inclined in a direction of inclination by an inclination angle. The position of incidence of the inclined laser beam on the detection field of the laser receiver is determined as a measurement point. The distance between the measurement point and a zero position of the detection field is stored as the height, and the measurement distance between the rotating laser and the laser receiver is determined using the inclination angle and the height.

Abstract: A method for checking and/or calibrating a vertical axis of a rotating laser which projects a first laser beam that can rotate about an axis of rotation and a second, stationary laser beam, using a laser receiver. The rotating laser is positioned at a measurement distance from the laser receiver, the rotating laser being oriented in a vertical position, and the laser receiver having a transverse arrangement.

Abstract: A method for checking and/or calibrating a first or a second horizontal axis of a rotating laser, which emits a laser beam rotating about an axis of rotation, with the aid of a laser receiver. The rotating laser is positioned at a measuring distance to the laser receiver, the rotating laser being aligned in the horizontal position and the laser receiver being aligned in a longitudinal arrangement.

Abstract: An optical assembly is disclosed. The optical assembly includes a collimating lens which collimates a divergent laser beam. A conical mirror has a reflecting cover surface and deforms a laser beam, which propogates in the direction of the conical axis, into an annular beam in a propogation plane perpendicular to the conical axis. An optics carrier has a first carrier element on which the collimating lens is fixed and a second carrier element on which the conical mirror is fixed. A connection device has at least one connection element which connects the first and second carrier elements to one another. The at least one connection element is arranged askew to the conical axis of the conical mirror.