Measuring device for measuring distance

Patent metadata

Field	Value
Publication number	US-9310197-B2
Application number	US-201213481396-A
Country	US
Kind code	B2
Filing date	May 25, 2012
Priority date	May 26, 2011
Publication date	Apr 12, 2016
Grant date	Apr 12, 2016

Abstract

A measuring device and a method for adjusting the measuring device is disclosed. The device includes a first electro-optical component, a second electro-optical component, a beam-shaping optical element, an optics carrier, and a printed circuit board. The optics carrier includes a first receptacle, where the first electro-optical component is mounted in the first receptacle, and a second receptacle, where the beam-shaping optical element is mounted in the second receptacle. The printed circuit board includes a third receptacle, where the second electro-optical component is mounted in the third receptacle. The first electro-optical component and the beam-shaping optical element are adjustable relative to the optics carrier in a direction of a respective optical axis of the first electro-optical component and the beam-shaping optical element and the second electro-optical component is adjustable and fixable in a plane essentially perpendicular to an optical axis of the second electro-optical element.

First claim

What is claimed is:

1. A measuring device for measuring a distance between a reference mark and a target object, comprising:
a first electro-optical component and a second electro-optical component which differs from the first electro-optical component, wherein the first and second electro-optical components include a beam source generating a laser beam and a detector detecting a reception beam;
a beam-shaping optical element;
a beam-splitting optical element, wherein the laser beam or the reception beam is deflectable by the beam-splitting optical element;
a monolithic optics carrier including a first receptacle, wherein the first electro-optical component is mounted in the first receptacle, a second receptacle, wherein the beam-shaping optical element is mounted in the second receptacle, and a third receptacle, wherein the beam-splitting optical element is mounted in the third receptacle;
a printed circuit board including a further receptacle, wherein the second electro-optical component is mounted in the further receptacle; and
a connecting device, wherein the monolithic optics carrier is connectable to the printed circuit board by the connecting device;
wherein, during an adjustment of the measuring device, the first electro-optical component and the beam-shaping optical element are only adjustable relative to the monolithic optics carrier in a direction of an associated respective optical axis of the first electro-optical component and the beam-shaping optical element, and the second electro-optical component is adjustable and fixable only in a plane essentially perpendicular to an associated optical axis of the second electro-optical component, such that no gap develops between the printed circuit board and the second electro-optical component in a direction of the associated optical axis of the second electro-optical component and such that no solder bridge exists between the printed circuit board and the second electro-optical component.

2. The measuring device according to claim 1 , wherein, during the adjustment of the measuring device, the printed circuit board is adjustable relative to the monolithic optics carrier in the plane and a contact surface of the monolithic optics carrier abuts the printed circuit board in a direction of the associated optical axis of the second electro-optical component.

3. The measuring device according to claim 1 , wherein the second electro-optical component is disposed on a side of the printed circuit board that faces the monolithic optics carrier.

4. The measuring device according to claim 1 , wherein the second electro-optical component is adjustable relative to the printed circuit board in the plane.

5. The measuring device according to claim 1 , wherein the second electro-optical component is disposed on a rear side of the printed circuit board facing away from the monolithic optics carrier.

6. The measuring device according to claim 1 , wherein the monolithic optics carrier is a metallic material.

7. The measuring device according to claim 1 , wherein the connecting device is a screwed connector.

8. The measuring device according to claim 1 , wherein the connecting device is an adhesive and a screwed connector.

9. A method for adjusting a measuring device, wherein the measuring device comprises:
a first electro-optical component and a second electro-optical component which differs from the first electro-optical component, wherein the first and second electro-optical components include a beam source generating a laser beam and a detector detecting a reception beam;
a beam-shaping optical element;
a beam-splitting optical element, wherein the laser beam or the reception beam is deflectable by the beam-splitting optical element;
a monolithic optics carrier including a first receptacle, wherein the first electro-optical component is mounted in the first receptacle, and a second receptacle, wherein the beam-shaping optical element is mounted in the second receptacle, and a third receptacle, wherein the beam-splitting optical element is mounted in the third receptacle;
wherein the first electro-optical component and the beam-shaping optical element are only adjustable relative to the monolithic optics carrier in a direction of an associated respective optical axis of the first electro-optical component and the beam-shaping optical element;
a printed circuit board including a further receptacle, wherein the second electro-optical component is mounted in the further receptacle; and
a connecting device, wherein the monolithic optics carrier is connectable to the printed circuit board by the connecting device;
and comprising the steps of:
adjusting the first electro-optical component and the beam-shaping optical element relative to the monolithic optics carrier in the direction of the associated respective optical axis of the first electro-optical component and the beam-shaping optical element;
abutting the printed circuit board against the monolithic optics carrier; and
adjusting the second electro-optical component only in a plane essentially perpendicular to an associated optical axis of the second electro-optical component such that no gap develops between the printed circuit board and the second electro-optical component in a direction of the associated optical axis of the second electro-optical component and such that no solder bridge exists between the printed circuit board and the second electro-optical component.

10. The method according to claim 9 , wherein the step of adjusting the second electro-optical component only in the plane essentially perpendicular to the associated optical axis of the second electro-optical component includes the step of adjusting the printed circuit board relative to the monolithic optics carrier in the plane.

11. The method according to claim 9 , wherein the second electro-optical component is disposed on a side of the printed circuit board that faces the monolithic optics carrier.

12. The method according to claim 9 , wherein the step of adjusting the second electro-optical component only in the plane essentially perpendicular to the associated optical axis of the second electro-optical component includes the step of adjusting the second electro-optical component relative to the printed circuit board in the plane.

13. The method according to claim 9 , wherein the second electro-optical component is disposed on a rear side of the printed circuit board facing away from the monolithic optics carrier.

14. The method according to claim 9 , wherein the monolithic optics carrier is a metallic material.

15. A measuring device for measuring a distance between a reference mark and a target object, comprising:
a first electro-optical component and a second electro-optical component which differs from the first electro-optical component, wherein the first and second electro-optical components include a beam source generating a laser beam and a detector detecting a reception beam;
a beam-shaping optical element;
a beam-splitting optical element, wherein the laser beam or the reception beam is deflectable by the beam-splitting optical element;
a monolithic optics carrier including a first receptacle, wherein the first electro-optical component is mounted in the first receptacle, and a second receptacle, wherein the beam-shaping optical element is mounted in the second receptacle, and wherein the beam-splitting optical element is an aperture mirror and is integrated into the monolithic optics carrier;
a printed circuit board including a third receptacle, wherein the second electro-optical component is mounted in the third receptacle; and

Assignees

• Gogolla Torsten
• Tiefenthaler Stefan
• Seifert Helmut
• Schusser Gero
• Hilti Ag

Inventors

• Gogolla Torsten
• Tiefenthaler Stefan
• Seifert Helmut
• Schusser Gero

Classifications

• G01C3/08 Primary

  Use of electric radiation detectors · CPC title

• G01S7/4972

  Alignment of sensor · CPC title

• G01S7/4813

  Housing arrangements · CPC title

• G01S17/08

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

• G01S7/4812 Primary

  transmitted and received beams following a coaxial path · CPC title