Wide angle zoom lens system

Details Wide angle zoom lens system Wide angle zoom lens system

1992-11-12

1995-01-31

Gross, Anita Pellman

Optical: systems and elements

Lens

With variable magnification

359784, G02B 514

Patent

active

053863208

ABSTRACT:
A zoom lens system comprising, in order from the object side, a first lens unit having a negative refractive power as a whole, a second lens unit having a negative refractive power as a whole and a third lens unit having a positive refractive power as a whole. This zoom lens system has a very wide field angle of approximately 102.degree. to 93.degree., a high aperture ratio of F/2.8 and a relatively simple composition.

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Optik vol. 64 No. 1 1983-K. Tanaka "Gausian Brackets and Their Application to Paraxial Theory. I. Gausian Brackets and Generalized Gausian Constants" pp. 13-24.
Optik vol. 64, No. 2 1983-K. Tanaka "Gausian Brackets and Their Application to Paraxial Theory. II. Paraxial Theory in Terms of Generalized Gausian Constants" pp. 89-111.

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