Global Patent Index - EP 1087736 A1

EP 1087736 A1 2001-04-04 - 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

EP 1087736 A1 (EN)

Application

EP 99928881 A

Priority

  • AU 9900479 W
  • AU PP420298 A

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 (main, further and additional classification)

A61F 9/007; A61N 5/06; G01S 17/08

IPC 8 full level (invention and additional information)

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 (invention and additional information)

G01S 17/88 (2013.01); G01S 17/66 (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

EPO simple patent family

WO 9965431 A1 19991223; AU PP420298 D0 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

INPADOC legal status


2005-11-16 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20050507

2005-04-06 [A4] SUPPLEMENTARY SEARCH REPORT

- Effective date: 20050218

2001-04-04 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20010117

2001-04-04 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE