Method and apparatus for digital image exposure on photo sensitive material

A technology of photosensitive materials and images, applied in printing devices, optics, optical components, etc., can solve the problems of cumbersome design of scanning lens, high production cost, complicated device, etc., and achieve the effect of low production cost, simple structure and reduced requirements
CN100417973CInactive Publication Date: 2008-09-10GUANGDONG IMETTO DIGITAL IMAGING TECH
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Patents(China)
Current Assignee / Owner
GUANGDONG IMETTO DIGITAL IMAGING TECH
Publication Date
2008-09-10
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

The method and device are used to make digital image explosing on photosensitive sheets. The method includes disintegrating images into red, blue and yellow data and then modulating them by three color laser beams with spacial differences converted into time differences for laser scanning to determine transmitting time. The device is consists of red, blue and yellow lasers and a scanner, having scanning lenses arranged according to the laser beam paths. It is compact, simple, reliable. The lenses are low cost and easily designed with quality images.
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Description

technical field

[0001] The invention relates to an exposure method and device for a photosensitive material, in particular to a method and a device for exposing a digital image on a photosensitive material. Background technique

[0002] Images captured by digital cameras or other digital images sometimes need to be output on photosensitive materials to obtain photos or films. At present, there is a method of exposing digital images on photosensitive materials. The method is to modulate the light intensity of the red, green and blue lasers respectively, and then combine the modulated three laser beams into one beam by various methods. Then it is exposed on the photosensitive material by apochromatic F(ฮธ) scanning to form a latent image, and the photosensitive material is chemically washed to form a color image. The characteristic of this method is that the three-color lasers must be modulated synchronously, and the requirements for light combination are very high, and the th...

Claims

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