EP 1613933 A1 20060111 - ARRANGEMENT FOR THE OPTICAL DISTANCE DETERMINATION OF A REFLECTING SURFACE
Title (en)
ARRANGEMENT FOR THE OPTICAL DISTANCE DETERMINATION OF A REFLECTING SURFACE
Title (de)
ANORDNUNG ZUR OPTISCHEN ABSTANDSBESTIMMUNG EINER REFLEKTIERENDEN OBERFLÄCHE
Title (fr)
DISPOSITIF POUR DETERMINER PAR VOIE OPTIQUE LA DISTANCE A LAQUELLE SE TROUVE UNE SURFACE REFLECHISSANTE
Publication
Application
Priority
- DE 2004000745 W 20040402
- DE 10316924 A 20030407
- DE 10323336 A 20030523
Abstract (en)
[origin: WO2004092692A1] The invention relates to an arrangement for the optical distance determination of a reflecting surface, which can especially be used to determine small distance modifications, such as those that frequently occur in oscillating systems. One such arrangement can also be used as an optical microphone or hydrophone. The inventive arrangement is designed in such a way that light from a light source is directed towards a reflecting surface (4) by means of a first optical wave guide, and light reflected from the reflecting surface is directed towards at least one statically arranged optical detector by means of the first optical wave guide or at least one other optical wave guide. An optical element (2) collimating in the direction of the reflecting surface is arranged between the reflecting surface and the at least one optical wave guide. Furthermore, at least two optical elements (3) focussing in the direction of the reflecting surface are arranged above the reflecting surface, the optical axes of said optical elements being parallel to the optical axis of the collimating optical element and arranged at constant distances from each other.
IPC 1-7
IPC 8 full level
G01H 9/00 (2006.01)
CPC (source: EP US)
G01H 9/004 (2013.01 - EP US)
Citation (search report)
See references of WO 2004092692A1
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
WO 2004092692 A1 20041028; EP 1613933 A1 20060111; US 2007052975 A1 20070308; US 7505151 B2 20090317
DOCDB simple family (application)
DE 2004000745 W 20040402; EP 04725284 A 20040402; US 55271504 A 20040402