Document reading lens, document reading lens unit, document...

Details Document reading lens, document reading lens unit, document... Document reading lens, document reading lens unit, document...

2004-06-24

2008-11-11

Safaipour, Houshang (Department: 2625)

Facsimile and static presentation processing

Facsimile

Picture signal generator

C358S475000, C358S505000, C358S001900

Reexamination Certificate

active

07450275

ABSTRACT:
A lens for reading an image of a document includes three positive lenses, three negative lenses, a diaphragm, and at least one cemented lens that includes one of the positive lenses and one of the negative lenses cemented together. The document reading lens includes at least one aspheric surface. The lens adjacent to the diaphragm has the aspherical surface, and at least one cemented lens is arranged to be adjacent to the diaphragm.

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