Optical: systems and elements – Compound lens system – Telescope
Reexamination Certificate
2011-06-07
2011-06-07
Font, Frank G (Department: 2872)
Optical: systems and elements
Compound lens system
Telescope
C359S407000, C359S662000, C434S284000, C434S303000
Reexamination Certificate
active
07957059
ABSTRACT:
An optical system includes two lens systems, one that provides viewing of an object with relatively no spherical aberration, and another that provides viewing of the object with significant spherical aberration. Preferably, both lens systems provide viewing of the object with relatively no chromatic aberration. The optical system may have the configuration of binoculars.
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Bausch & Lomb Incorporated
Font Frank G
Thomas John E.
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