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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

Inactive Publication Date: 2008-09-10
GUANGDONG IMETTO DIGITAL IMAGING TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the device of this method is very complex, bulky, and has poor reliability, and the design of the F(θ) scanning lens is loaded down with trivial details, and the production cost is high.

Method used

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  • Method and apparatus for digital image exposure on photo sensitive material
  • Method and apparatus for digital image exposure on photo sensitive material

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Embodiment Construction

[0008] The specific implementation of the method and device of the present invention will be further described below in conjunction with the accompanying drawings.

[0009] As shown in the figure, the embodiment of the present invention is to decompose the data of a digital image into the data of three images of cyan, magenta and yellow, and control the red laser 1, The green laser 3 , the blue laser 4 and the light intensity modulator 5 in front of each laser perform light intensity modulation on the three-color lasers, and then the beam is shaped by the beam shaper 6 . The spatial position of the three uncombined laser beams entering the scanning part can be known, and the time difference between the laser passing one or more reference points can be measured, and the spatial distance difference between any laser beams in the three images can be converted into The time difference during laser scanning is used to determine the sending time difference of each pixel of the three...

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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.

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(θ) 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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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B27/10G02B26/10G03B27/00
Inventor 陈振华
Owner GUANGDONG IMETTO DIGITAL IMAGING TECH
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