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US Patent 7746566 Observation optical system

Patent 7746566 was granted and assigned to Olympus Group on June, 2010 by the United States Patent and Trademark Office.

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Patent attributes

Current Assignee

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Patent Jurisdiction

United States Patent and Trademark Office

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Patent Number

Patent Inventor Names

Masayuki Mizusawa0

Date of Patent

June 29, 2010

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Patent Application Number

120995390

Date Filed

April 8, 2008

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Patent Citations Received

US Patent 11864734 Multi-camera endoscope

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US Patent 11986155 Multi-viewing element endoscope

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US Patent 11925323 Fluid distribution device for a multiple viewing elements endoscope

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US Patent 11889986 Flexible electronic circuit board for a multi-camera endoscope

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Patent Primary Examiner

Timothy J Thompson

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Patent abstract

An observation optical system has a negative lens unit including a cemented lens, arranged at the most object-side position; an annular reflecting mirror placed on the image side of the negative lens unit, with a reflecting surface facing the image side; and an imaging lens unit arranged on the image side of the negative lens unit and the annular reflecting mirror.

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