Optical: systems and elements – Lens – With variable magnification
Patent
1994-11-30
1997-06-24
Sugarman, Scott J.
Optical: systems and elements
Lens
With variable magnification
359715, G02B 1514, G02B 302
Patent
active
056422318
ABSTRACT:
A zoom lens having two units of lens components including from the object side a positive optical unit and a negative optical unit. The zoom lens satisfies the following relationship ##EQU1## where eW is the principal point separation of the zoom lens when said zoom lens operates at a wide angle position and eT is the principal point separation of the zoom lens when said zoom lens operates at the telephoto position.
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Eastman Kodak Company
Schwartz Jordan M.
Short Svetlana Z.
Sugarman Scott J.
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