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1. (WO2014207675) A METHOD FOR SCANNING A COLOURED SURFACE OF A TILE AND A DEVICE FOR ACTUATING THE METHOD
PCT Biblio. Data
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Pub. No.:
WO/2014/207675
International Application No.:
PCT/IB2014/062591
Publication Date:
31.12.2014
International Filing Date:
25.06.2014
IPC:
G01J 3/50
(2006.01),
G01J 3/28
(2006.01),
B07C 5/342
(2006.01),
B28B 17/00
(2006.01),
G01N 21/898
(2006.01)
G
PHYSICS
01
MEASURING; TESTING
J
MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
3
Spectrometry; Spectrophotometry; Monochromators; Measuring colours
46
Measurement of colour; Colour measuring devices, e.g. colorimeters
50
using electric radiation detectors
G
PHYSICS
01
MEASURING; TESTING
J
MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
3
Spectrometry; Spectrophotometry; Monochromators; Measuring colours
28
Investigating the spectrum
B
PERFORMING OPERATIONS; TRANSPORTING
07
SEPARATING SOLIDS FROM SOLIDS; SORTING
C
POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
5
Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
34
Sorting according to other particular properties
342
according to optical properties, e.g. colour
B
PERFORMING OPERATIONS; TRANSPORTING
28
WORKING CEMENT, CLAY, OR STONE
B
SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG OR MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
17
Details of, or accessories for, apparatus for shaping the material; Auxiliary measures taken in connection with such shaping
G
PHYSICS
01
MEASURING; TESTING
N
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21
Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible, or ultra-violet light
84
Systems specially adapted for particular applications
88
Investigating the presence of flaws, defects or contamination
89
in moving material, e.g. paper, textiles
892
characterised by the flaw, defect or object feature examined
898
Irregularities in textured or patterned surfaces, e.g. textiles, wood
Applicants:
NUOVA SIMA S.P.A.
[IT/IT]; Via Selice Provinciale 17/A I-40026 Imola (Bologna) (IT)
Inventors:
BARDI, Maurizio
; (IT)
Agent:
DALL'OLIO, Daniele
; (IT)
Priority Data:
BO2013A000332
26.06.2013
IT
Title
(EN)
A METHOD FOR SCANNING A COLOURED SURFACE OF A TILE AND A DEVICE FOR ACTUATING THE METHOD
(FR)
PROCÉDÉ DE BALAYAGE D'UNE SURFACE COLORÉE D'UNE TUILE ET DISPOSITIF D'ACTIONNEMENT DU PROCÉDÉ
Abstract:
(EN)
The invention relates to a method for scanning a coloured surface (2) of a tile and a device which actuates the method. The device (1 ) for scanning a coloured surface (2) of a tile (3) comprises a matrix of photodetectors (4) comprising a plurality of rows of photodetectors (5) which are parallel and placed side by side, the matrix of photodetectors (4) does not comprise any colour filter above the photodetectors (4) and the rows of photodetectors (5) are near each other and spaced by a distance equal to at least one pixel; the matrix of photodetectors (4) is arranged such as to acquire, in synchrony with a temporal scanning interval, an image of a surface band (6) of a coloured surface (2) to be scanned of a tile (3). The device also comprises: a plurality of lamps (7) each having a light emission spectrum different from a light emission spectrum of another lamp of the plurality of lamps (7); the lamps of the plurality of lamps (7) being arranged such as to illuminate the surface band (6) of the coloured surface (2) to be scanned of the tile (3); the lamps of the plurality of lamps (7) being commandable to switch on at least one at a time at each temporal scanning interval; conveyor means (8) provided for restingly receive and transport the tile (3) to be scanned and for determining a relative movement between the tile (3), on a side, and the matrix of photodetectors (4) and the plurality of lamps (7), on the other side, in a movement direction which is perpendicular to the plurality of rows of photodetectors (5) such that for each surface band (6) of the coloured surface (2) to be scanned of the tile (3) a predetermined number of images is acquired.
(FR)
L'invention concerne un procédé de balayage d'une surface colorée (2) d'une tuile et un dispositif qui actionne le procédé. Le dispositif (1) de balayage d'une surface colorée (2) d'une tuile (3) comprend une matrice de photodétecteurs (4) comprenant une pluralité de rangées de photodétecteurs (5) qui sont parallèles et placés côte à côte, la matrice de photodétecteurs (4) ne comprend aucun filtre coloré au-dessus des photodétecteurs (4) et les rangées de photodétecteurs (5) sont près les unes des autres et espacées d'une distance égale à au moins un pixel ; la matrice de photodétecteurs (4) est agencée de façon à acquérir, en synchronisme avec un intervalle de balayage temporel, une image d'une bande de surface (6) d'une surface colorée (2) à balayer d'une tuile (3). Le dispositif comprend aussi : une pluralité de lampes (7) ayant chacune un spectre d'émission de lumière différent d'un spectre d'émission de lumière d'une autre lampe de la pluralité de lampes (7) ; les lampes de la pluralité de lampes (7) étant agencées de façon à illuminer la bande de surface (6) de la surface colorée (2) à balayer de la tuile (3) ; les lampes de la pluralité de lampes (7) étant commandables pour commuter sur au moins un temps à chaque intervalle de balayage temporel ; des moyens convoyeurs (8) prévus pour recevoir au repos et transporter la tuile (3) à balayer et pour déterminer un mouvement relatif entre la tuile (3), sur un côté, et la matrice de photodétecteurs (4), et la pluralité de lampes (7), sur l'autre côté, dans une direction de mouvement qui est perpendiculaire à la pluralité de rangées de photodétecteurs (5) de telle sorte que pour chaque surface de bande (6) de la surface colorée (2) à balayer de la tuile (3), un nombre prédéterminé d'images soit acquis.
Designated States:
AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG).
Publication Language:
English (
EN
)
Filing Language:
Italian (
IT
)