Optical: systems and elements – Lens – Anamorphic
Reexamination Certificate
2011-07-12
2011-07-12
Martinez, Joseph (Department: 2873)
Optical: systems and elements
Lens
Anamorphic
Reexamination Certificate
active
07978419
ABSTRACT:
A scan lens for an imaging device includes first, second, third, and fourth lens elements optically positioned in ascending numeric order between a scanning component and an imaging surface. The first lens element has an optical power in an in-scan direction of the imaging device and an optical power in a cross-scan direction of the imaging device, the optical power in the cross-scan direction being positive and greater than the optical power in the in-scan direction. The second lens element has a negative optical power in the in-scan and cross-scan directions. The third lens element has a positive optical power in the in-scan direction and cross-scan directions. The fourth lens element has an optical power in the in-scan direction and a positive optical power in the cross-scan direction, the optical power in the cross-scan direction being greater than the optical power in the in-scan direction.
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Hewlett--Packard Development Company, L.P.
Martinez Joseph
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