Invention Grant
- Patent Title: Image inspection method by polarized compensation for deformation of lens
- Patent Title (中): 镜片变形偏振补偿的图像检测方法
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Application No.: US11519477Application Date: 2006-09-12
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Publication No.: US07580122B2Publication Date: 2009-08-25
- Inventor: Kuo-Cheng Huang , Wen-Hong Wu , Chia-Wei Hsu , Ting-Ming Huang
- Applicant: Kuo-Cheng Huang , Wen-Hong Wu , Chia-Wei Hsu , Ting-Ming Huang
- Applicant Address: TW Hsinchu
- Assignee: Instrument Technology Research Center
- Current Assignee: Instrument Technology Research Center
- Current Assignee Address: TW Hsinchu
- Agency: The Webb Law Firm
- Priority: TW94131552A 20050913
- Main IPC: G01B9/00
- IPC: G01B9/00 ; G01B21/00 ; G01J4/00

Abstract:
A lens inspection device and method are provided. The lens inspection method includes the steps of providing a collimating light beam, polarizing the collimating light beam by a polarizer to produce a polarized light beam, deflecting the polarized light beam by a lens to be measured to produce a deflected light beam, providing a phase retardation plate through which a polarized compensation image is generated, and comparing the polarized compensation image with a lookup table having standard color values of a plurality of standard polarization compensated images recorded therein, so as to determine whether a deformation is presented on the lens.
Public/Granted literature
- US20070058160A1 Image inspection method by polarized compensation for deformation of lens Public/Granted day:2007-03-15
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