Device for optically measuring distances
AssigneeRobert Bosch GmbH
InventorsJoerg Stierle, Peter Wolf
Life of this patent
Estimating the term…
Abstract
The invention relates to an apparatus for optical distance measurement, having a transmitter unit (12) for emitting optical radiation (13), in particular laser radiation, in the direction of a target object (15); having a receiver unit (14) for receiving the radiation (16, 49) reflected by the target object (15); and having a control and evaluation unit (56) for ascertaining the distance between the apparatus and the target object (15), and also having at least one optical means (26, 28, 30, 50) for beam guidance. It is proposed that the relative position of the at least one optical means (26, 28, 30, 50) and the light source (17, 18) of the apparatus to one another be variable.
Claims9
An apparatus for optical distance measurement, comprising:
- a transmitter unit (12) with a light source (17, 18) for emitting optical radiation (13, 20, 22) to a target object (15);
- a receiver unit (14) for receiving the optical radiation (16, 49) returning from the target object (15);
- a control and evaluation unit (56) for ascertaining the optical distance from the apparatus to the target object (15);
- and
- at least one optical means (26, 28, 30, 50) for beam guidance of the measuring radiation (13, 49), wherein the relative disposition of the at least one optical means (26, 28, 30, 50) for beam guidance and of the light source (17, 18) relative to one another is variable, and wherein the relative disposition of the at least one optical means (26, 28, 30, 50) and the light source (17, 18) is adjustable in all three directions in space.
An apparatus for optical distance measurement, comprising:
- a transmitter unit (12) with a light source (17, 18) for emitting optical radiation (13, 20, 22) to a target object (15);
- a receiver unit (14) for receiving the optical radiation (16, 49) returning from the target object (15);
- a control and evaluation unit (56) for ascertaining the optical distance from the apparatus to the target object (15);
- and
- at least one optical means (26, 28, 30, 50) for beam guidance of the measuring radiation (13, 49), wherein the relative disposition of the at least one optical means (26, 28, 30, 50) for beam guidance and of the light source (17, 18) relative to one another is variable;
- a closed-loop control mechanism (36), which controls the relative disposition of the at least one optical means (26, 28, 30, 50) and the light source (17, 18);
- and
- at least one sensor (38) for detecting at least the beam divergence, and/or the beam direction, and/or the beam diameter of the measurement signals (13), and/or of the returning measurement signal (16), and sends it on to the closed-loop control mechanism (36).
Dependencies are inferred from the claim text.