Optical: systems and elements – Lens – With reflecting element
Reexamination Certificate
2006-08-08
2006-08-08
Dang, Hung Xuan (Department: 2873)
Optical: systems and elements
Lens
With reflecting element
C359S627000, C359S727000, C359S730000, C359S731000
Reexamination Certificate
active
07088526
ABSTRACT:
A lens collimator according to the present invention includes a plurality of lens elements bonded together. The lens elements, preferably three, each include spherical surfaces and are generally concentrically disposed relative to each other. The lens elements are arranged to produce an increased quantity of reflections and refractions within a lens optical path. The reflections and refractions reduce aberrations and control signal intercept angles relative to an image plane, thereby enabling the lens to match the performance of an optical signal carrier utilized with the lens. The lens element arrangement basically serves to provide an optical path with a quantity of reflections similar to that achieved with a lens having a greater quantity of elements or surfaces. The reflections and refractions enable the lens to cancel out or remove undesired characteristics (e.g., aberrations, etc.) from the resulting optical signals.
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Dang Hung Xuan
Edell Shapiro & Finnan LLC
ITT Manufactruing Enterprises, Inc.
Martinez Joseph
LandOfFree
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