EP 3622246 A1 20200318 - DISTANCE MEASURING ARRANGEMENT FOR DETERMINING A DISTANCE FROM AN OBJECT
Title (en)
DISTANCE MEASURING ARRANGEMENT FOR DETERMINING A DISTANCE FROM AN OBJECT
Title (de)
ABSTANDSMESSANORDNUNG ZUR BESTIMMUNG EINES ABSTANDES ZU EINEM OBJEKT
Title (fr)
ASSEMBLAGE DE MESURE DE DISTANCE PRÉVU POUR DÉTERMINER UNE DISTANCE PAR RAPPORT À UN OBJET
Publication
Application
Priority
- EP 17170788 A 20170512
- EP 2018062150 W 20180509
Abstract (en)
[origin: WO2018206731A1] The present disclosure relates to a distance measuring arrangement for determining a distance from an object (20), wherein the distance measuring arrangement comprises the following: – at least one light source (12) for producing at least one first monochromatic and interference-capable light beam (12.1) with a first wavelength and for producing at least one second monochromatic and interference-capable light beam (12.2) with a second wavelength, – a multiplexer (14) for coupling or combining the at least first light beam (12.1) and the at least second light beam (12.2) into a common measurement beam (M), – an output coupling element (45) for splitting the measurement beam (M) into a reference beam (R) and into a signal beam (S), wherein the reference beam (R) propagates along a reference path (RP) and wherein the signal beam (S) propagates along a signal path (SP), – a phase modulator (60; 160), which is arranged in the signal path (SP) and which is configured to modulate the phase of the signal beam (S) in a time-periodic manner.
IPC 8 full level
G01B 9/02 (2006.01); G01B 11/24 (2006.01)
CPC (source: EP US)
G01B 9/02007 (2013.01 - EP US); G01B 9/0201 (2013.01 - US); G01B 9/02024 (2013.01 - US); G01B 9/02057 (2013.01 - EP); G01B 11/026 (2013.01 - US); G01B 11/2441 (2013.01 - EP); G02F 1/3133 (2013.01 - US)
Citation (search report)
See references of WO 2018206731A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3401634 A1 20181114; CN 110785623 A 20200211; CN 110785623 B 20220531; DE 202018006722 U1 20220512; EP 3622246 A1 20200318; JP 2020519893 A 20200702; JP 6997807 B2 20220118; US 11015916 B2 20210525; US 2020200523 A1 20200625; WO 2018206731 A1 20181115
DOCDB simple family (application)
EP 17170788 A 20170512; CN 201880041934 A 20180509; DE 202018006722 U 20180509; EP 18722565 A 20180509; EP 2018062150 W 20180509; JP 2019562375 A 20180509; US 201816613022 A 20180509