Optical: systems and elements – Lens – Multiple component lenses
Reexamination Certificate
2006-11-07
2006-11-07
Schwartz, Jordan M. (Department: 2873)
Optical: systems and elements
Lens
Multiple component lenses
C359S773000
Reexamination Certificate
active
07133221
ABSTRACT:
A lens system has a plurality of lenses, a stop, and a diffractive surface, the entire lens system moves during focusing, and the lens system satisfies the condition of β≧0.5, where β is a maximum photographic magnification.
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