Zoom objective

Details Zoom objective Zoom objective

1980-06-16

1983-04-19

Corbin, John K.

G02B 1518

Patent

active

043803768

ABSTRACT:
A zoom objective is composed of three components of which the first and the third each perform a one-round axial movement over the range of variation, while the second simultaneously performs a monotonic axial movement in one direction.

REFERENCES:
patent: 3970367 (1976-07-01), Tsuji

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