Optical: systems and elements – Lens – Multiple component lenses
Reexamination Certificate
2009-02-13
2010-11-30
Schwartz, Jordan M. (Department: 2873)
Optical: systems and elements
Lens
Multiple component lenses
C359S708000, C362S268000, C362S335000
Reexamination Certificate
active
07843653
ABSTRACT:
There is provided an optical system and method for shaping a polychromatic light into a substantially uniform profile beam along a first axis. A polychromatic divergent light with having multiple wavelength components is provided with a dispersion of divergence. A collimation optic collimates the polychromatic divergent light. A shaping lens shapes the collimated beam into a shaped beam with a nearly uniform profile along the first axis, the dispersion of divergence causing a deviation from uniformity of the nearly uniform profile. A focusing optic focuses the shaped beam. A combination of the collimation and focusing optics shows a chromatic focal shift that compensates for said dispersion of divergence, so as to reduce the deviation from uniformity to obtain a profile with a substantially uniform intensity along the first axis, for all of said multiple wavelength components.
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D. Marcuse, “Loss analysis of single-mode fiber splices”, Bell Syst. Technical Journal, vol. 56, No. 5, 1977.
Coherent Inc.
Morrison & Foerster / LLP
Schwartz Jordan M.
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