Optical: systems and elements – Lens – Multiple component lenses
Patent
1998-11-17
1999-10-26
Epps, Georgia
Optical: systems and elements
Lens
Multiple component lenses
359748, 359793, 359661, G20B 1302
Patent
active
059738596
ABSTRACT:
An apochromatic lens system which includes, in this order from the object, a positive first lens group and a positive second lens group; wherein the following conditions are satisfied:
REFERENCES:
patent: 4400065 (1983-08-01), Nagler
patent: 5589976 (1996-12-01), Kanai et al.
patent: 5729390 (1998-03-01), Abe
Asahi Kogaku Kogyo Kabushiki Kaisha
Epps Georgia
Spector David N.
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