Patent · US Active

Scanner lens

US8385009B2 · kind B2 · utility

1Cited by

5References

2Claims

0Family size

Assignee

ASIA OPTICAL INTERNATIONAL LTD. · VG

Inventors

Chun-Hong Chen · Torrance, US
Jian-Wei Lee · Taichung, TW

Key dates

Filing date	Sep 9, 2010
Grant date	Feb 26, 2013
Priority date	—
Expiry date	Dec 6, 2030

Classification

Technology area (CPC G)Physics
CPC primaryG02B27/0031
WIPO fieldOptics
WIPO sectorInstruments

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.