US Patent 7173776 Fisheye lens system

Patent 7173776 was granted and assigned to Pentax on February, 2007 by the United States Patent and Trademark Office.

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Patent Number

Date of Patent

February 6, 2007

Patent Application Number

11168306

Date Filed

June 29, 2005

Patent Primary Examiner

Patent abstract

A fisheye lens system with a half angle-of-view of 90° includes a negative front lens group, a diaphragm, and a positive rear lens group.

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