Image recording device

Claim 2

An image scanning and recording system having a recording unit for duplicating and recording halftone images on a photosensitive material, the system comprising: a beam flattener made up of a pair of cylindrical lenses for flattening a beam of light from a light source and transferring the flattened beam of light to an acousto-optic modulating element; an acousto-optic light modulating element having a plurality of ultrasonic wave exciting portions disposed side by side on a single acousto-optic medium for independently modulating incident light from the beam flattener with said ultrasonic wave exciting portions independently into a plurality of modulated light beams in response to image signals from a photo electrical scanning means; a scale down optical system for reducing the diameter of the plurality of modulated light beams from the acousto-optic light modulating element, said scale-down optical system comprising a plurality of small lenses of a size sufficient to reduce the diameter of each one of the modulated light beams; and a plurality of light transfer means corresponding in number to said plurality of small lenses for transferring the light beams from said scale-down optical system to a focussing lens system for projecting from the focussing lens system, in a predetermined scale-down ratio, the light beams from the output ends of the plurality of light transfer means onto a film mounted on a recording cylinder, and wherein said plurality of light transfer means comprises an optical fiber bundle.

Claim 3

The system as in claim 1, wherein the output ends of individual fibers of the optical fiber bundle are arranged in a row in closely adjoining relation along a line included to the subcoordinate scanning direction of the image scanning and recording system.

Claim 4

The system as in claim 1, wherein the output ends of individual fibers of the optical fiber bundle are arranged in a plurality of rows in closely adjoining relation parallel to the subcoordinate scanning direction of the image scanning and recording system, and the output ends in a row are alternately displaced in said direction relative to those in an adjacent row.

Claim 5

The system as in claim 1 further comprising a light source is a laser light source.

Claim 6

An image scanning and recording system having a recording unit for duplicating and recording halftone images on a photosensitive material, the system comprising: an acousto-optic light modulating element having a plurality of ultrasonic wave exciting portions disposed side by side on a single acousto-optic medium for independently modulating incident light with said ultrasonic wave exciting portions independently into a plurality of modulated light beams in response to image signals from a photo electrical scanning means; a scale down optical system for reducing the diameter of the plurality of modulated light beams from the acousto-optic light modulating element, said scale-down optical system comprising a plurality of small lenses of a size sufficient to reduce the diameter of each one of the modulated light beams; and a plurality of light transfer means corresponding in number to said plurality of small lenses for transferring the light beams from said scale down optical system to a focussing lens system for projecting from the focussing lens system, in a predetermined scale-down ratio, the light beams from the output ends of the plurality of light transfer means onto a film mounted on a recording cylinder, and wherein said plurality of light transfer means comprises an optical fiber bundle having the output ends of individual fibers of the optical fiber bundle arranged in a plurality of rows in closely adjoining relation parallel to the subcoordinate scanning direction of the image scanning and recording system, and the output ends in a row being alternately displaced in said direction relative to those in an adjacent row.

Claim 7

An image scanning and recording system having a recording unit for duplicating and recording halftone images on a photosensitive material, the system comprising: an acousto-optic light modulating element having a plurality of ultrasonic wave exciting portions disposed side by side on a single acousto-optic medium for independently modulating incident light with said ultrasonic wave exciting portions independently into a plurality of modulated light beams in response to image signals from a photo electrical scanning means; a scale down optical system for reducing the diameter of the plurality of modulated light beams from the acousto-optic light modulating element, said scale-down optical system comprising a plurality of small lenses of a size sufficient to reduce the diameter of each one of the modulated light beams; and a plurality of light transfer means corresponding in number to said plurality of small lenses for transferring the light beams from said scale down optical system to a focussing lens system for projecting from the focussing lens system, in a predetermined scale-down ratio, the light beams from the output ends of the plurality of light transfer means onto a film mounted on a recording cylinder, and wherein said plurality of light transfer means comprises an optical fiber bundle having the output ends of individual fibers of the optical fiber bundle arranged in a plurality of rows in closely adjoining relation parallel to the subcoordinate scanning direction of the image scanning and recording system, and the output ends in a row being alternately displaced in said direction relative to those in an adjacent row.

Claim 8

The system as in claim 5 further comprising a beam flattener made up of a pair of cylindrical lenses for flattening a beam of light from a light source and transferring the flattened beam of light to said acousto-optic modulating element.

Claim 9

The system as in claim 5 further comprising a light source which is a laser light source.