230000003287 optical Effects 0.000 claims abstract description 28.Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Application filed by Alex Ning filed Critical Alex Ning Priority to US11/100,195 priority Critical patent/US7023628B1/en Application granted granted Critical Publication of US7023628B1 publication Critical patent/US7023628B1/en Status Active legal-status Critical Current Anticipated expiration legal-status Critical Links Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Active Application number US11/100,195 Inventor Alex Ning Original Assignee Alex Ning Priority date (The priority date is an assumption and is not a legal conclusion. Google Patents Compact fisheye objective lensĭownload PDF Info Publication number US7023628B1 US7023628B1 US11/100,195 US10019505A US7023628B1 US 7023628 B1 US7023628 B1 US 7023628B1 US 10019505 A US10019505 A US 10019505A US 7023628 B1 US7023628 B1 US 7023628B1 Authority US United States Prior art keywords lens lens element image surface facing image plane Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google Patents US7023628B1 - Compact fisheye objective lens US7023628B1 - Compact fisheye objective lens

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