Optical: systems and elements – Lens – With variable magnification
Patent
1993-10-19
1995-08-29
Sugarman, Scott J.
Optical: systems and elements
Lens
With variable magnification
359714, G02B 1514
Patent
active
054465923
ABSTRACT:
A compact zoom lens system comprises a front negative lens component and a rear positive lens component with a variable air space between the front and the rear lens components. The front negative lens component consists of two lens elements and the rear lens component consists of two or three lens elements. A plurality of aspherical surfaces are employed for the compact zoom lens system. Furthermore, some zoom lens system includes an additional negative lens component having a weak refractive power behind the rear lens component.
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Date Mitsuko
Kohno Tetsuo
Okada Takashi
Minolta Camera Kabushiki Kaisha
Sugarman Scott J.
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