Negative spherical aberration component-based imaging lens...

Details Negative spherical aberration component-based imaging lens... Negative spherical aberration component-based imaging lens...

2006-07-31

2009-06-23

Sugarman, Scott J (Department: 2873)

Optical: systems and elements

Lens

Including a nonspherical surface

C359S738000

Reexamination Certificate

active

07551370

ABSTRACT:
An imaging lens assembly focuses light from indicia in a working range of distances along an optical path onto a solid-state imager of an imaging reader. The lens assembly includes a negative spherical aberration component and an aperture stop that together are operative for extending the working range.

REFERENCES:
patent: 7063261 (2006-06-01), Vinogradov et al.

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