Computer flat screen platemaking optical system and imaging method

Abstract

The invention provides a computer flat screen platemaking optical system and an imaging method, a coaxial perspective optical structure is adopted, a densely arranged optical fiber, a front lens group, a rear lens group and a working surface are sequentially arranged along an optical axis, the front lens group is composed of two lenses, and the rear lens group is composed of five lenses; practicalwork, the interval between the densely arranged optical fibers and the front lens group is fixed; integral structure, the lens group moves independently along the optical axis direction relative to the rear lens group; the distance between the front lens group and the rear lens group and the distance between the rear lens group and the working surface are changed; compared with a traditional single optical imaging system, the system has the advantages that the resolution can be continuously adjusted. The system is small in imaging distortion, high in image surface energy uniformity and the like.

Description

technical field [0001] The invention relates to the technical field of computer direct plate making, in particular to an optical system and an imaging method for computer flat screen plate making. Background technique [0002] Computer-to-plate CTP system is a comprehensive and multidisciplinary product, which integrates new technologies such as optical technology, electronic technology, color digital image technology, computer software and hardware, precision instruments and plate technology, automation technology, and network technology. In one high-tech product. Its structure is mainly composed of three parts: mechanical system, optical system and circuit system. One of the technical keys of computer-to-plate is that the printing plate and the imaging system must match, because the chemical substance on the surface of the printing plate has a very close relationship with the laser energy transmitted to it. In order to meet this key requirement, the direct plate-making te...

AI Technical Summary

Problems solved by technology

One of the technical keys of computer-to-plate is that the printing plate and the imaging system must match, because the chemical substance on the surface of the printing plate has a very close relationship with the laser energy transmitted to it. In order to meet this key requirement, the direct plate-making technology can be It can be summarized as: working method, laser technology and plate material technology, but the existing optical imaging system is often relatively single, does not have the characteristics of continuously adjustable resolution, small imaging distortion, and high energy uniformity of the image plane. In view of the above problems, special Propose an optical system and imaging method for computer flat screen plate making

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