Optical: systems and elements – Lens – Multiple component lenses
Reexamination Certificate
2007-05-04
2010-06-08
Schwartz, Jordan M. (Department: 2873)
Optical: systems and elements
Lens
Multiple component lenses
C359S637000, C600S101000
Reexamination Certificate
active
07733584
ABSTRACT:
An optical device includes an elongated tube configured for insertion into a body and optical members located in the tube. The optical members are configured to have an optical invariant-to-clear aperture semidiameter ratio greater than about 0.05 and an optical path difference less than about a value of the optical invariant divided by at least 250 times a midrange wavelength in a spectral range from about 435.8 nm to about 656.3 nm, and are preferably formed of an extraordinary dispersion optical material. A method includes conducting polychromatic light through at least one optical member located in an elongated tube configured for insertion into a body, where the optical members have an optical invariant-to-clear aperture semidiameter ratio greater than about 0.05 and an optical path difference less than about a value of an optical invariant divided by at least 250 times the midrange wavelength from about 435.8 to about 656.3 nm.
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International Search Report and Written Opinion of the International Searching Authority issued in PCT/US2008/061267 mailed Oct. 30, 2008 (16 pages).
Fish & Richardson P.C.
Schwartz Jordan M.
Smith & Nephew Inc.
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