EP 1946041 A1 20080723 - MEASURING SYSTEM FOR THREE-DIMENSIONAL OBJECTS
Title (en)
MEASURING SYSTEM FOR THREE-DIMENSIONAL OBJECTS
Title (de)
VERMESSUNGSSYSTEM FÜR DREIDIMENSIONALE OBJEKTE
Title (fr)
SYSTÈME DE MESURE POUR OBJETS EN TROIS DIMENSIONS
Publication
Application
Priority
- EP 2006010855 W 20061113
- DE 102005054337 A 20051111
Abstract (en)
[origin: WO2007054351A1] The invention relates to a three-dimensional object measuring system (1) having a strip projector (2) for producing a strip-shaped light pattern on an object (3) to be measured, wherein the strip projector (2) comprises a light source (4) and a liquid crystal light modulator (5) with a matrix-type arrangement of pixels which can be controlled so as to be light and dark, and having an electronic camera (6) for recording images of the object (3) which is illuminated with the light pattern. For the purpose of achieving a high measuring accuracy, the invention proposes that the strip projector (2) and the electronic camera (6) are actuated by means of a control circuit (8), which is designed such that, during the exposure time of an image, the pixels of the light modulator (5) are switched between light and dark, with the temporal progression of the switchover of the pixels being synchronized with the image recording.
IPC 8 full level
G01B 11/25 (2006.01); G02B 26/04 (2006.01); G02F 1/133 (2006.01)
CPC (source: EP KR)
G01B 11/00 (2013.01 - KR); G01B 11/25 (2013.01 - KR); G01B 11/2513 (2013.01 - EP); G02B 26/04 (2013.01 - KR)
Citation (search report)
See references of WO 2007054351A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
DE 102005054337 A1 20070516; CN 101305260 A 20081112; EP 1946041 A1 20080723; KR 20080068111 A 20080722; WO 2007054351 A1 20070518
DOCDB simple family (application)
DE 102005054337 A 20051111; CN 200680041829 A 20061113; EP 06829021 A 20061113; EP 2006010855 W 20061113; KR 20087013927 A 20080610