公开(公告)号：US11047681B2

公开(公告)日：2021-06-29

申请号：US16089215

申请日：2017-03-01

Applicant: Robert Bosch GmbH

Inventor： Eric Yuen ,  Philip Cheung ,  John Jiang

IPC: G01C15/00 ,  G01C15/06

Abstract: A levelling apparatus includes a housing, a light generation unit, at least one first lens, a second lens, and a holding apparatus. The light generation unit is arranged in the housing, is mounted in an oscillating manner relative to the housing and has at least one light source, to which the at least one first lens for generating a first light plane and the second lens for generating a second light plane are assigned. The holding apparatus includes a first holding element and a second holding element for arranging the at least one first lens and the second lens. The at least one first lens is arranged on the first holding element and the second lens is arranged on the second holding element. The holding apparatus is configured to orient the at least one first lens and the second lens at least substantially perpendicular to one another.

公开(公告)号：US20240027623A1

公开(公告)日：2024-01-25

申请号：US18257191

申请日：2021-11-08

Applicant: Robert Bosch GmbH

Inventor： Chi Fung Chan ,  Daniel Marquardt ,  Aglaia Bartelmess ,  Philip Cheung ,  Eddie Kwan

IPC: G01S17/89 ,  G01S7/4915 ,  G01S7/497

CPC classification number: G01S17/89 ,  G01S7/4915 ,  G01S7/497

Abstract: The disclosure relates to a method for determining a profile section of an object and/or space by means of a 2D laser scanner having a laser rangefinder, including:



recording mutually assignable distance measurement values and distance measurement directions by means of the laser rangefinder in a measuring plane traversed radially by a laser beam of the laser rangefinder,
determining the profile section,
from the distance measurement values and distance measurement directions,
determining an angle of inclination of the measuring plane with respect to a reference plane, and
correcting the profile section using the angle of inclination of the measuring plane.




According to the disclosure, the angle of inclination of the measuring plane is determined by using the laser rangefinder.
The disclosure also relates to a 2D laser scanner and to a system.

公开(公告)号：US20230045402A1

公开(公告)日：2023-02-09

申请号：US17757535

申请日：2020-11-26

Applicant: Robert Bosch GmbH

Inventor： Martin Pohlmann ,  Wah Pong Calvin Chan ,  Axel Rumberg ,  Philip Cheung ,  Eddie Kwan ,  Chi Fung Chan

IPC: G01C15/00

Abstract: A laser leveling device includes at least one laser emitting device for emitting a laser marking, in particular a one-dimensional laser marking, in an emission direction onto a projection surface. The laser emitting device includes a first sensor device for ascertaining the actual alignment of the at least one laser emitting device with respect to the projection surface, a controller which is designed to calculate a target alignment of the at least one laser emitting device at least on the basis of the ascertained actual alignment of the at least one laser emitting device with respect to the projection surface, and a positioning device for aligning the at least one laser emitting device according to the target alignment. The disclosure additionally relates to a leveling method.