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1. CN101166962 - Automated inspection of colored contact lenses

Office
China
Application Number 200680014641.6
Application Date 03.05.2006
Publication Number 101166962
Publication Date 23.04.2008
Grant Number 101166962
Grant Date 08.06.2011
Publication Kind B
IPC
G01M 11/02
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
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
诺瓦提斯公司
Inventors Tucker Robert C.
R·C·塔克
Quinn Michael H.
M·H·奎因
Agents yangxiao guang lizheng
北京市中咨律师事务所 11247
北京市中咨律师事务所 11247
Priority Data 60/677,721 04.05.2005 US
Title
(EN) Automated inspection of colored contact lenses
(ZH) 对有色接触透镜的自动检查
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 colorej print applied onto the mold half or the contact lens has any defects.
(ZH)

本发明涉及一种自动检查施加于模具或者接触透镜上的有色印像的方法,包括如下步骤:通过采用对中和调节装置以精确预定的方式自动对准照相机和其模制表面上具有有色印像的半模;以照相机拍摄照片,其中该照片包括其模制表面上具有有色印像的半模或者其中具有接触透镜的模具的图像,其中照相机与模具的预定对准保证了模具图像的中心基本上位于照片的预定像素上;并通过计算分析对应于有色印像的至少一个像素区域,以确定施加在半模或者接触透镜上的有色印像是否具有缺陷。