Laser distance meter

Patent metadata

Field	Value
Publication number	US-12276754-B2
Application number	US-201916388762-A
Country	US
Kind code	B2
Filing date	Apr 18, 2019
Priority date	Apr 19, 2018
Publication date	Apr 15, 2025
Grant date	Apr 15, 2025

Abstract

A laser distance meter consisting of an optical emitting path having an optical emitter and emitting optics and a receiving path having receiving optics and an optical detector. In this case, an optics mount completely optically isolates the emitting path and receiving path from one another and fixes the components thereof. The emitting optics and receiving optics are designed as plastic components transmissive to the measuring beams, and the optics mount is designed as a plastic component opaque to the measuring beams. The material composite of the emitting optics, the receiving optics, and the optics mount are designed as a 2-component injection molded part.

First claim

What is claimed is:

1. A laser distance meter comprising:
an optical emitting path, which comprises an optical emitter for emitting and emitting optics for bundling measuring beams along a first optical axis in the direction of a target object;
a receiving path, which comprises receiving optics for bundling reflected measuring beams along a second optical axis in the direction of an optical detector;
an optics mount, which completely optically isolates the emitting path and the receiving path from one another, fixes the emitting path and the receiving path, so as to define the first and second optical axes with respect to the optics mount;
a first printed circuit board which accommodates the optical emitter and the optical detector;
a second printed circuit board which accommodates control and evaluation electronics;
wherein the emitting optics and the receiving optics are designed as plastic components transmissive to the measuring beams and the reflected measuring beams, respectively; and
wherein the optics mount is configured as a plastic component opaque to the measuring beams, and
wherein an integral material bond exists between the emitting optics and the optics mount or the receiving optics and the optics mount, and
wherein at least one of the integral material bonds between the emitting optics and the optics mount or between the receiving optics and the optics mount is designed in the form of a 2-component injection molded part,
wherein the optics mount comprises recesses and connecting elements configured to accommodate the first and second printed circuit boards, and
wherein a part of the first printed circuit board is located outside of a volume enclosed by the optics mount.

2. The laser distance meter according to claim 1 , wherein a further, deformable plastic component used as a bonding material is formed respectively between the emitting optics and the optics mount or the receiving optics and the optics mount.

3. The laser distance meter according to claim 1 , wherein the optics mount comprises positioning devices for the emitting path, receiving path, and the printed circuit boards.

4. The laser distance meter according to claim 1 , wherein the laser distance meter comprises positioning devices for the positioning and fixing in a measuring device housing.

5. The laser distance meter according to claim 1 , wherein the emitting optics comprise a window and the receiving optics are designed as a lens.

6. The laser distance meter according to claim 1 , wherein the emitting optics and receiving optics are designed as lenses.

7. The laser distance meter according to claim 1 , further comprising an inclination sensor.

8. The laser distance meter according to claim 7 , wherein the inclination sensor is fixedly connected to the optics mount.

9. The laser distance meter according to claim 1 , further comprising:
positioning devices or connecting elements for:
a camera for recording images in the direction of the target object,
a touchscreen, for
displaying images recorded by means of the camera,
putting characters and numbers,
activating functions, or

an input means for selecting functions.

10. The laser distance meter according to claim 1 , further comprising a transmitting and receiving unit for wirelessly transmitting images of measured values for documentation or synchronization items of information for operation.

11. The laser distance meter according to claim 1 , further comprising a transmitting and receiving unit for wirelessly transmitting images of measured values for documentation or synchronization items of information for operation.

Assignees

• Leica Geosystems Ag

Inventors

• Bösch Thomas

Classifications

• G01S17/87

  Combinations of systems using electromagnetic waves other than radio waves · CPC title

• G01S17/74

  Systems using reradiation of electromagnetic waves other than radio waves, e.g. IFF, i.e. identification of friend or foe · CPC title

• G01S17/86

  Combinations of lidar systems with systems other than lidar, radar or sonar, e.g. with direction finders · CPC title

• G01S17/08 Primary

  for measuring distance only (indirect measurement G01S17/46; active triangulation systems G01S17/48) · CPC title

• G01S7/51

  Display arrangements · CPC title