公开(公告)号：CS183774B2

公开(公告)日：1978-07-31

申请号：CS862974

申请日：1974-12-16

Applicant: TS LAB OPTYKI

Inventor： JASNY JAN

IPC: G03B27/73 ,  G03B27/16

Abstract: The device for correcting the color of a color film printing machine, equipped with three different optical filters which divide the diaphragm hole of an optical system condenser on three segments and two leaves, which partially stop down the filters; at the same time the leaves are suitably equipped with curved guides and pivot around points. Every pair of leaves is driven by a common lever equipped with a slide, which at the lever pivotal point, moves along guides. The linear increases of the lever turning angle is accompanied with a logarithmic increase of the filter-active field, for example, with a suitable radius of curvature, the guides, the length of lever, coordinates of the leaves', pivot points of lever, coordinates of pivot points of leaves, of the distance between the edge and the point of the leaves' pivot point, and coordinates which define the position of the guide curvature center in relation to the leaf edges.

公开(公告)号：IT1027718B

公开(公告)日：1978-12-20

申请号：IT3060374

申请日：1974-12-16

Applicant: TS LAB OPTYKI

Inventor： JASNY JAN

IPC: G03B27/73 ,  G03B

Abstract: The device for correcting the color of a color film printing machine, equipped with three different optical filters which divide the diaphragm hole of an optical system condenser on three segments and two leaves, which partially stop down the filters; at the same time the leaves are suitably equipped with curved guides and pivot around points. Every pair of leaves is driven by a common lever equipped with a slide, which at the lever pivotal point, moves along guides. The linear increases of the lever turning angle is accompanied with a logarithmic increase of the filter-active field, for example, with a suitable radius of curvature, the guides, the length of lever, coordinates of the leaves', pivot points of lever, coordinates of pivot points of leaves, of the distance between the edge and the point of the leaves' pivot point, and coordinates which define the position of the guide curvature center in relation to the leaf edges.

公开(公告)号：CA1027789A

公开(公告)日：1978-03-14

申请号：CA216280

申请日：1974-12-16

Applicant: TS LAB OPTYKI

Inventor： JASNY JAN

IPC: G03B27/73 ,  G03B27/54

Abstract: The device for correcting the color of a color film printing machine, equipped with three different optical filters which divide the diaphragm hole of an optical system condenser on three segments and two leaves, which partially stop down the filters; at the same time the leaves are suitably equipped with curved guides and pivot around points. Every pair of leaves is driven by a common lever equipped with a slide, which at the lever pivotal point, moves along guides. The linear increases of the lever turning angle is accompanied with a logarithmic increase of the filter-active field, for example, with a suitable radius of curvature, the guides, the length of lever, coordinates of the leaves', pivot points of lever, coordinates of pivot points of leaves, of the distance between the edge and the point of the leaves' pivot point, and coordinates which define the position of the guide curvature center in relation to the leaf edges.