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1. WO2006117205 - AUTOMATED INSPECTION OF COLORED CONTACT LENSES

Publication Number WO/2006/117205
Publication Date 09.11.2006
International Application No. PCT/EP2006/004131
International Filing Date 03.05.2006
IPC
G01M 11/02 2006.1
GPHYSICS
01MEASURING; TESTING
MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
11Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
02Testing optical properties
B29D 11/00 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
DPRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
11Producing optical elements, e.g. lenses or prisms
CPC
B29D 11/00125
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
DPRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
11Producing optical elements, e.g. lenses or prisms
00009Production of simple or compound lenses
00038Production of contact lenses
00125Auxiliary operations, e.g. removing oxygen from the mould, conveying moulds from a storage to the production line in an inert atmosphere
B29D 11/0025
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
DPRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
11Producing optical elements, e.g. lenses or prisms
00009Production of simple or compound lenses
00038Production of contact lenses
00125Auxiliary operations, e.g. removing oxygen from the mould, conveying moulds from a storage to the production line in an inert atmosphere
0025Removing impurities from contact lenses, e.g. leaching
B29D 11/00317
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
DPRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
11Producing optical elements, e.g. lenses or prisms
00009Production of simple or compound lenses
00317Production of lenses with markings or patterns
B29D 11/0098
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
DPRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
11Producing optical elements, e.g. lenses or prisms
00951Measuring, controlling or regulating
0098Inspecting lenses
G01N 21/958
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
84Systems specially adapted for particular applications
88Investigating the presence of flaws or contamination
95characterised by the material or shape of the object to be examined
958Inspecting transparent materials ; or objects, e.g. windscreens
Applicants
  • NOVARTIS AG [CH]/[CH] (AllExceptUS)
  • TUCKER, Robert, Carey [US]/[US] (UsOnly)
  • QUINN, Michael, Hugh [US]/[US] (UsOnly)
Inventors
  • TUCKER, Robert, Carey
  • QUINN, Michael, Hugh
Agents
  • HEINEN, Detlef
Priority Data
60/677,72104.05.2005US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) AUTOMATED INSPECTION OF COLORED CONTACT LENSES
(FR) INSPECTION AUTOMATISEE DE LENTILLES DE CONTACT COLOREES
Abstract
(EN) The present invention relates to a method for automatically inspecting a colored print applied either on a mold or on a contact lens, comprising the steps of automatically aligning, in a precisely predetermined manner, by using centering and adjusting means, a camera with the mold half having the colore print on its molding surface; taking a picture with the camera, wherein the .picture comprises an image of the mold half having the colored print on its imolding surface or of the mold with the contact lens therein, wherein jpredetermined alignment of the camera with the mold ensures that the center jof the mold image is located substantially at a predetermined pixel in the jpicture; and analyzing by computing at least a pixel area corresponding to the colored print to determine if the coloreςj print applied onto the mold half or the contact lens has any defects.
(FR) La présente invention concerne un procédé de fabrication de lentilles de contact colorés et, notamment, l'inspection automatisée d'images colorées imprimées sur des moules ou sur des lentilles de contact.
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