Optical system

Details Optical system Optical system

2007-03-20

2007-03-20

Mack, Ricky (Department: 2873)

Optical: systems and elements

Lens

With variable magnification

C359S642000

Reexamination Certificate

active

11264951

ABSTRACT:
In an optical system, there is disposed a solid material having refractive surfaces on both of the light incidence side and a light emergence side, and the Abbe number vd and the partial dispersion ratio θgF satisfy the conditions:in-line-formulae description="In-line Formulae" end="lead"?−2.100×10−3·vd+0.693<θgF; andin-line-formulae description="In-line Formulae" end="tail"?in-line-formulae description="In-line Formulae" end="lead"?0.555<θgF<0.6.in-line-formulae description="In-line Formulae" end="tail"?

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