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    • 8. 发明申请
    • METHOD AND SYSTEM FOR INSPECTING OPTICAL DEVICES
    • 检测光学器件的方法和系统
    • WO2003073061A2
    • 2003-09-04
    • PCT/US2003/005356
    • 2003-02-21
    • JOHNSON & JOHNSON VISION CARE, INC.DISPENZA, Anthony, J.WIDMAN, Michael, F.GILES, Kevin, H.EBEL, James
    • DISPENZA, Anthony, J.WIDMAN, Michael, F.GILES, Kevin, H.EBEL, James
    • G01M11/00
    • G01M11/0278G01M11/0214
    • A method of inspecting optical devices comprising (a) illuminating the optical device and a surrounding background with light, wherein said light comprises a first wavelenght band and a second wavelenght band, wherein said first wavelength band and said second wavelength band are different wavelengths, and wherein said first wavelength band has a first intensity and said second wavelength band has a second intensity; (b) transmitting said light throug said optical device wherein the majority of said first wavelength band is absorbed by said optical device and the majority of the second wavelength band is transmitted through said optical device, and capturing said lens transmitted light on a photo-sensitive pixel array; (c) transmitting said light through said surrounding background wherein the majority of said first wavelength band and said second wavelength band are transmitted, and capturing said background transmitted light on a photo-sensitive array; (d) reading pixels generated form step (b) and step (c) and comparing the gray scale values of saide reading, wherein the difference between the grayscale values of the pixels generated from said background transmitted light and from said lens transmitted light is of sufficient value to distinguish between holes in said optical device and bubbles in said surrounding backround.
    • 一种检查光学装置的方法,包括:(a)用光照亮所述光学装置和周围背景,其中所述光包括第一波长带和第二波长带,其中所述第一波长带和所述第二波长带是不同的波长,以及 其中所述第一波长带具有第一强度,并且所述第二波长带具有第二强度; (b)发射所述光通道的所述光学装置,其中所述第一波长带的大部分被所述光学装置吸收,并且所述第二波长带的大部分透射通过所述光学装置,并将所述透镜透射光照射在感光体上 像素阵列 (c)透射所述光通过所述周围背景,其中所述第一波长带和所述第二波长带的大部分被传输,并且将所述背景透射光捕获在感光阵列上; (d)读取从步骤(b)和步骤(c)生成的像素,并比较所述读取的所述背景透射光产生的像素的灰度值与所述透镜透射光之间的灰度值之间的差为 足够的值来区分所述光学装置中的孔和所述周围的背景中的气泡。