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1. WO2003073121 - SPHERICALLY MOUNTED LIGHT SOURCE WITH ANGLE MEASURING DEVICE, TRACKING SYSTEM, AND METHOD FOR DETERMINING COORDINATES

Publication Number WO/2003/073121
Publication Date 04.09.2003
International Application No. PCT/US2003/005581
International Filing Date 24.02.2003
Chapter 2 Demand Filed 18.09.2003
IPC
G PHYSICS
01
MEASURING; TESTING
B
MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
11
Measuring arrangements characterised by the use of optical means
G PHYSICS
01
MEASURING; TESTING
S
RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
1
Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
70
using electromagnetic waves other than radio waves
G PHYSICS
01
MEASURING; TESTING
S
RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
5
Position-fixing by co-ordinating two or more direction or position-line determinations; Position-fixing by co-ordinating two or more distance determinations
16
using electromagnetic waves other than radio waves
G PHYSICS
01
MEASURING; TESTING
S
RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
17
Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
66
Tracking systems using electromagnetic waves other than radio waves
G01B 11/00 (2006.01)
G01S 1/70 (2006.01)
G01S 5/16 (2006.01)
G01S 17/66 (2006.01)
CPC
G01B 11/002
G01B 11/005
G01S 1/70
G01S 17/66
G01S 5/16
Applicants
  • FARO LASER TRACKERS, LLC [US/US]; 125 Technology Park Lake Mary, FL 32746-6204, US
Inventors
  • BRIDGES, Robert, E.; US
Agents
  • BEDINGFIELD, Herbert, M.; Cantor Colburn LLP 55 Griffin Road South Bloomfield, CT 06002, US
Priority Data
60/358,93022.02.2002US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) SPHERICALLY MOUNTED LIGHT SOURCE WITH ANGLE MEASURING DEVICE, TRACKING SYSTEM, AND METHOD FOR DETERMINING COORDINATES
(FR) SOURCE LUMINEUSE MONTEE SUR UNE SPHERE, ASSOCIEE A UN GONIOMETRE, A UN SYSTEME DE POURSUITE ET A UN PROCEDE DE MESURE DE COORDONNEES
Abstract
(EN)
A device (20) for use in conjunction with a coordinate measuring device, a three-dimensional coordinate measuring system and a method of measuring three-dimensional coordinates are described. The device includes a light source (28) mounted substantially within the center of a spherical member (32) having a spherical surface (30) configured such that the distance from the light source (28) to the outer contact surface (30) of the sphere is substantially equal to the radius of the sphere regardless of sphere orientation. The three-dimensional coordinate measuring systeme further includes a coordinate-measuring device (22, 24, 148), the coordinate-measuring device (22, 24, 148) configured to track the movement of the light source (28) and to measure either azithmuth angles and zenith angles, or to spherically encode tracking information related to relevant positions of the light source (28). The present method includes emitting light (96) at a target with a light source (28), wherein the light source (28) is mounted substantially within the center of a spherical member (32) having a spherical surface (30) configured such that the distance from the light source (28) to the outer contact surface (30) of the sphere is substantially equal to the radius of the sphere regardless of sphere orientation, moving the surface (30) of the spherical member across a device (42) to be measured, tracking said light source (28) with a tracking device (22, 24, 148), and measuring information related to the relative position of the light source (28) using either angular encoders (144, 146) or spherical encoders (86).
(FR)
L'invention porte: sur un dispositif (20) s'utilisant en association avec un dispositif de mesure de coordonnées, sur un système de mesure de coordonnées en 3D, et sur un procédé de mesure de cordonnées en 3D. Ledit dispositif comporte une source lumineuse (28) sensiblement placée au centre d'un élément sphérique (32) de manière à ce que la distance de la source (28) à la surface extérieure de contact (30) de la sphère soit sensiblement égale au rayon de la sphère quelque soit l'orientation de la sphère. Ledit système comporte de plus un dispositif de mesure de coordonnées (22, 24, 148), et le susdit dispositif de mesure de coordonnées (22, 24, 148) conçu pour suivre le mouvement de la source lumineuse (28) et en mesurer les angles azimutal et zénithal, ou pour coder sphériquement des informations de poursuite relatives à des positions pertinentes de la source lumineuse (28). Ledit procédé consiste: à émettre la lumière (96) d'une source lumineuse (28) sur une cible, ladite source (28) étant sensiblement placée au centre d'un élément sphérique (32) de manière à ce que la distance de la source (28) à la surface extérieure de contact (30) de la sphère soit sensiblement égale au rayon de la sphère quelque soit l'orientation de la sphère; à déplacer la surface (30) de l'élément sphérique le long du dispositif (42) à mesurer; à suivre la source lumineuse (28) au moyen d'un dispositif de poursuite (22, 24, 148); et à saisir des informations sur la position relative de la source lumineuse (28) à l'aide de codeurs angulaires (144, 146) ou sphériques (86).
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