High speed high resolution continuous optical film printer for duplicating motion films
AssigneeEastman Kodak Company
InventorsDAVID KESSLER, DAVID H. KIRKPATRICK
Life of this patent
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Abstract
A high speed, high resolution, continuous optical film printer (25) is disclosed for copying negative intermediate film (11) onto a print film (12). The two films are placed side by side on a common transport shaft (13) and moved past an illumination system comprised of a source (30) and an integrating cylinder (15a). A unit magnification imaging optical system (25) produces a telecentric, monocentric, color corrected, high resolution, low flare image strip (18) on the print film which is parallel to the object strip. The optical film print also provides angularly diffuse illumination to provide scratch and matte suppression.
Claims10
A high speed, high resolution, continuous optical film printer comprising:
- common transport shaft for transporting an negative intermediate film and a print film, mounted side by side said common transport shaft;
- an illumination system which illuminates an object strip on said negative intermediate film with light having a Numerical Aperture greater than 0.4 as said negative intermediate film and is moved past said illumination system;
- and
- a unit magnification optical imaging system;
- which projects an image strip on said print film side by side with said object strip.
A high speed, high resolution, continuous optical film printer comprising:
- a common transport shaft which transports a negative intermediate film and a print film side by side;
- an integrating cylinder which provides light having a numerical aperture greater than 0.4 to an object strip on said negative intermediate film;
- and
- a unit magnification optical imaging system which produces an image strip on said print film, parallel to said object strip.
Dependencies are inferred from the claim text.