Variable magnification lens system

Details Variable magnification lens system Variable magnification lens system

G - Physics

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G02B 15/14 (2006.01) G02B 13/24 (2006.01) G02B 15/16 (2006.01) G02B 17/08 (2006.01)

Patent

CA 1081512

VARIABLE MAGNIFICATION LENS SYSTEM ABSTRACT OF THE DISCLOSURE A variable magnification lens is exemplified by a 6-element symmetrical zoom lens for use between fixed conju- gates at magnification ranging from 1.007X to 0.615X. The outer elements remain fixed relative to the unit. The inner elements form two integral pairs on each side of the central aperture and move symmetrically with respect to it to effect magnification change while maintaining a substantially flat image field over the entire magnification range.

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