INSPECTION OF DEFECTS IN A CONTACT LENS,申请号KR20127020857-传众专利搜索

INSPECTION OF DEFECTS IN A CONTACT LENS

申请公布号：KR20130108971(A)

申请号：KR20127020857

申请日期：2011.02.23

申请公布日期：2013.10.07

申请人：

VISIONXTREME PTE LTD.

发明人：VERTOPRAKHOV VICTOR;WONG SOON WEI;YEW TIAN POH

分类号：G01M11/00;G01N21/88;G02C7/04

主分类号：G01M11/00

摘要：A method and a system for inspecting a clear and printed contact lens are provided. The contact lens is inspected by illuminating the contact lens using bright field illumination and low angle dark field illumination simultaneously, when the contact lens is disposed in a cavity between a male mold and a female mold. Further, the light emerging from the contact lens is received by an imaging optical system, and a camera uses the light received by the imaging optical system to capture an image of the contact lens. Further, a data processing system is configured to identify dark defects in the image that are in a first portion of dynamic range of brightness and identify bright defects in the image that are in a second portion of the dynamic range of brightness.