Patent ID: 6304315
Filing Date: 2001-10-16
Classification: G03B

Abstract:
A high speed, high resolution, continuous optical film printer comprising:common transport shaft for transporting a negative intermediate film and a print film, wherein said negative intermediate film and said print film are mounted side by side on said common transport shaft;an illumination system which illuminates an object strip on a frame of said negative intermediate film with light having a Numerical Aperture greater than 0.4 as said negative intermediate film is moved by said common transport shaft past said illumination system;a unit magnification optical imaging system, which projects an annular image on said print film side by side with said object strip;wherein said print film and said negative intermediate film are located between said common transport shaft and said unit magnification optical imaging system;wherein said object strip and said annular image are located on said common transport shaft;wherein said object strip and said image strip are parallel to an axis of rotation of said common transport shaft; andwherein said unit magnification system is comprised of a two-mirror monocentric and telecentric system.