EP 3665504 A1 20200617 - METHOD FOR PROVIDING A DETECTION SIGNAL FOR OBJECTS TO BE DETECTED
Title (en)
METHOD FOR PROVIDING A DETECTION SIGNAL FOR OBJECTS TO BE DETECTED
Title (de)
VERFAHREN ZUR BEREITSTELLUNG EINES DETEKTIONSSIGNALS FÜR ZU DETEKTIERENDE OBJEKTE
Title (fr)
PROCÉDÉ POUR FOURNIR UN SIGNAL DE DÉTECTION POUR DES OBJETS À DÉTECTER
Publication
Application
Priority
- DE 102017213729 A 20170808
- EP 2018070589 W 20180730
Abstract (en)
[origin: WO2019030041A1] The invention relates to a method for providing a detection signal for objects (70) to be detected, wherein by means of a first optical non-linear 3-wave process (30, 30a), from a light beam of a light source (10) having an output frequency (flaser), at least one first and one second light beam are generated, which have different frequencies (fobj, fref) and wherein the first light beam having a reference frequency (fref) is detected and wherein the second light beam having an object frequency (fobj) is emitted and, after reflection on an object (70), is received, and wherein the light beam having the output frequency (flaser) and the second light beam having the object frequency (fobj) are superimposed, and wherein by means of a second optical non-linear 3-wave process (30, 30b), from the two superimposed light beams having the output frequency (flaser) and having the object frequency (fobj), a reference beam having a reference frequency (fref) is generated, and wherein a detection signal is generated such that, based on the time difference between the detection of the first light beam having the reference frequency (fref) and a detection of a change in the reference beam having reference frequency (ref) on the basis of said superimposition, the distance (d) of the object (70) can be determined.
IPC 8 full level
G01S 17/10 (2020.01); G01S 7/481 (2006.01); G01S 7/4861 (2020.01); G01S 7/4865 (2020.01); G01S 7/487 (2006.01); G01S 17/26 (2020.01)
CPC (source: EP KR US)
G01S 7/481 (2013.01 - EP US); G01S 7/4817 (2013.01 - EP KR US); G01S 7/4861 (2013.01 - US); G01S 7/4865 (2013.01 - EP KR US); G01S 7/487 (2013.01 - EP KR); G01S 17/10 (2013.01 - EP KR); G01S 17/26 (2020.01 - US); G01S 17/894 (2020.01 - KR); G02F 1/3501 (2013.01 - US); G02F 1/3534 (2013.01 - US); G02F 1/3551 (2013.01 - US); G02F 1/39 (2013.01 - US); G02F 1/3507 (2021.01 - US)
Citation (search report)
See references of WO 2019030041A1
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)
WO 2019030041 A1 20190214; CN 111194415 A 20200522; CN 111194415 B 20231031; DE 102017213729 A1 20190214; DE 102017213729 B4 20201224; EP 3665504 A1 20200617; JP 2020530902 A 20201029; JP 6833105 B2 20210224; KR 102642209 B1 20240304; KR 20200035117 A 20200401; US 11703568 B2 20230718; US 2020386859 A1 20201210
DOCDB simple family (application)
EP 2018070589 W 20180730; CN 201880065523 A 20180730; DE 102017213729 A 20170808; EP 18749341 A 20180730; JP 2020507106 A 20180730; KR 20207006507 A 20180730; US 201816636496 A 20180730