Printing dot coverage simulation and measurement method

A technology of printing dots and measurement methods, which is applied in special data processing applications, instruments, electrical digital data processing, etc. It can solve the problems of manual measurement of optical dots, etc., and achieve the effects of broadening evaluation methods, reducing consumption, and short measurement cycles

Inactive Publication Date: 2018-04-20
SHANDONG AGRICULTURAL UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The measurement speed of this method is faster, but manual measurement is required and the influence of optical dot gain cannot be avoided

Method used

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  • Printing dot coverage simulation and measurement method
  • Printing dot coverage simulation and measurement method
  • Printing dot coverage simulation and measurement method

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Embodiment Construction

[0045] The principle of the present invention is that, according to the definition of printing screen, dots are the smallest copy unit for reproducing printing effects, and accurately controlling the transfer and copying of dots is an effective way to control printing quality. The dot coverage area is the area of ​​the dot inking area in the printing unit grid, and the ratio of the area of ​​the inking area in the unit grid to the grid area is the dot area ratio. Different dot area ratios in the printed manuscript ultimately reflect different printing tones. The traditional way to measure the dot area ratio is: measure the incident luminous flux and reflected luminous flux, and then convert and calculate the dot area ratio. The development of computer virtual reality technology has realized the simulation of light propagation process in different media. According to the definition of physical optics, light has wave-particle duality. Based on the particle properties of light, ...

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Abstract

The invention relates to a printing dot coverage simulation and measurement method. The method comprises the following steps: step (1), determining optical characteristic parameters required for simulation; step (2), establishing a dot simulation process; step (3), simulating dot shape designs; step (4), carrying out information counting and conversion; and step (5), establishing a printing dot simulation and measurement system. According to the dot simulation and measurement system of the invention, only computer simulation technology needs to be employed for simulating a propagation processof light in printing dots without the need for actual printing on a machine, simulation and measurement on various dot shapes are realized, and consumption on printing materials is reduced. The methodis economical and environmentally friendly.

Description

technical field [0001] The invention relates to the measurement technology of IPC classification G01B irregular surface or contour, belongs to the field of printing dot quality control, and in particular relates to a simulation measurement method of printing dot coverage. Background technique [0002] Printed matter is an important information carrier. According to different functions of printed matter, it can be divided into five categories: books, picture albums, and packaging boxes. Printed products are rich in types and in various forms, which are related to many aspects of office and life. The information recorded, carried, and disseminated in printed matter accounts for 80% of the total information, and is an important part of promoting information replication and dissemination. [0003] Printing quality Quality is a key factor in determining the effective dissemination of information in printed matter. Structurally, the printed matter is composed of a substrate and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/20
Inventor 张开兴刘洪豪刘贤喜
Owner SHANDONG AGRICULTURAL UNIVERSITY
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