Aperture structure in zoom lens

Details Aperture structure in zoom lens Aperture structure in zoom lens

1981-11-04

1984-09-25

Corbin, John K.

G02B 1500

Patent

active

044732783

ABSTRACT:
A separate set of aperture blades is provided for varying the maximum full aperture of a zoom lens as its magnification is changed. The second set of aperture blades are pivotally mounted to a support plate which also rotatably supports the conventional aperture blades.

REFERENCES:
patent: 3906529 (1975-09-01), Filipovich
patent: 4141636 (1979-02-01), Shimojima

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