Zoom lens

Details Zoom lens Zoom lens

1991-12-10

1993-03-02

Arnold, Bruce Y.

Optical: systems and elements

Lens

With variable magnification

359693, 359676, G02B 1514

Patent

active

051914751

ABSTRACT:
A zoom lens comprising, from front to rear, a focusing lens group, a variator lens group, a compensator lens group and a relay lens group, the relay lens group consisting of a front part and a rear part with a longest air spacing therebetween, and the rear part including a first movable lens component arranged upon setting of macro photography made to move along an optical axis, and a second movable lens component arranged upon setting of tracking adjustment made to move along the optical axis.

REFERENCES:
patent: 4516839 (1985-05-01), Tokumaru
patent: 4712883 (1987-12-01), Kato et al.
patent: 4776682 (1088-10-01), Hosoya
patent: 4854681 (1989-08-01), Kato et al.
patent: 4854684 (1988-08-01), Horiuchi
patent: 4859042 (1989-08-01), Tanaka

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