US Patent 8385009 Scanner lens

Patent 8385009 was granted and assigned to Asia Optical International Ltd. on February, 2013 by the United States Patent and Trademark Office.

Overview Structured Data Issues Contributors Activity

Is a

Patent

Patent attributes

Current Assignee

Asia Optical International Ltd.

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

83850090

Patent Inventor Names

Jian-Wei Lee0

Chun-Hong Chen0

Date of Patent

February 26, 2013

Patent Application Number

128784590

Date Filed

September 9, 2010

Patent Primary Examiner

‌

Darryl J. Collins

Patent abstract

A scanner lens includes a first lens, a second lens, and a third lens. The first lens is provided with a first focal length. The first, second, and third lenses are sequentially arranged from an object end to an imaging end and are respectively provided with a plus diopter, a minus diopter, and a plus diopter. At least one of the first, second, and third lenses comprises an aspheric lens. The ratio of the first focal length to a system focal length of the scanner lens ranges between 1 and 2.