EP 1087736 A1 20010404 - Z AXIS TRACKER
Title (en)
Z AXIS TRACKER
Title (de)
VORRICHTUNG ZUR NACHFÜHRUNG ENTLANG DER Z-ACHSE
Title (fr)
DISPOSITIF DE POURSUITE SELON L'AXE DES Z
Publication
Application
Priority
- AU 9900479 W 19990617
- AU PP420298 A 19980617
Abstract (en)
[origin: WO9965431A1] A method of tracking the position of an object surface (12) includes generating an interference signal between light beams of short temporal coherence length respectively comprising a primary beam (10) reflected or scattered from the object surface (12) and a reference beam (8). A reference surface (14) in the path of said reference beam (8) is scanned about a position at which the interference signal is generated, which position is thereby indicative of the position of the object surface (12). In one aspect, the position of the reference surface (14) is controlled (16, 18) to maintain a predetermined point in the range of the scanning at the indicative position.
IPC 1-7
IPC 8 full level
A61F 9/007 (2006.01); A61F 9/01 (2006.01); G01S 17/08 (2006.01); G01S 17/66 (2006.01); G01S 17/88 (2006.01); A61B 3/113 (2006.01); A61B 17/00 (2006.01); A61F 9/008 (2006.01); A61F 9/011 (2006.01)
CPC (source: EP)
G01S 17/66 (2013.01); G01S 17/88 (2013.01); A61B 3/113 (2013.01); A61B 2017/00017 (2013.01); A61B 2017/00057 (2013.01); A61B 2017/00694 (2013.01); A61F 9/00736 (2013.01); A61F 9/00825 (2013.01); A61F 2009/00846 (2013.01); A61F 2009/00851 (2013.01); A61F 2009/00872 (2013.01); A61F 2009/00897 (2013.01)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 9965431 A1 19991223; AU PP420298 A0 19980709; CA 2334825 A1 19991223; CN 1305360 A 20010725; EP 1087736 A1 20010404; EP 1087736 A4 20050406; JP 2002518093 A 20020625; NZ 508729 A 20030926
DOCDB simple family (application)
AU 9900479 W 19990617; AU PP420298 A 19980617; CA 2334825 A 19990617; CN 99807467 A 19990617; EP 99928881 A 19990617; JP 2000554312 A 19990617; NZ 50872999 A 19990617