Dual Wavelength light-emitting source for chromatography printing register sensor

A technology of chromatic printing and sensors, which is applied to the general parts of printing machinery, printing, printing machines, etc., can solve the problems of plate instability and plate sensors that cannot be arbitrarily flexible, so as to achieve strong practicability and improve the scope of application Effect

Inactive Publication Date: 2006-10-25
维伦科技股份有限公司
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  • Abstract
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Problems solved by technology

[0004] The purpose of the present invention is to provide a dual-wavelength light source applied to the registration sensor of color registration printing, which solves the problem of unstable registration of the prior art and the inability of the registration sensor to detect flexibly, conveniently and practically. question

Method used

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  • Dual Wavelength light-emitting source for chromatography printing register sensor
  • Dual Wavelength light-emitting source for chromatography printing register sensor
  • Dual Wavelength light-emitting source for chromatography printing register sensor

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Embodiment Construction

[0014] as attached figure 1 to attach Figure 4 As shown, the plate alignment sensor 1 of the present invention is mainly composed of a pair of dual light source LED lamps 10, 11 with a distance of 20 mm and their associated control circuits. The first dual light source LED lamp 10 and the second dual light source LED lamp 11. An aperture pad 100, 110 is arranged at the front end to prevent the two groups of light from interfering with each other. Convex lenses 12, 13 are respectively arranged in front of the aperture pad 100, 110, and a 45-degree angle is placed in the central area inside the plate-aligning sensor 1. A single beam splitter 14 can reflect the dual light sources 2 emitted by the first and second dual light source LED lamps 10, 11 to the outer lenses 16, 17 of the plate sensor 1 through the beam splitter 14, and the pair A light-absorbing sheet 15 is provided on the upper edge of the plate sensor 1 to prevent the dual light sources 2 emitted by the first and se...

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Abstract

The invention is about the two wavelength primary luminous used for the chromaticity printing register sensor. The sensor is made up of a fixed distance of two luminous LED lights and the diaphragm cushion. The two luminous sources are reflected to the external lens by the convex glass and the single spectroscopical sheet. When the two light sources eject to the color code respectively, the reflectance ratio difference will be produced between the color marker and the ground color paper, the reflex light ejects to the detecting unit through the external lens and detected by the detecting circuit. It can avoid not detecting the special color using the single light, so it can detect the any color.

Description

technical field [0001] The present invention relates to printing, in particular to a dual-wavelength light source applied to a registration sensor for color registration, especially a technology for a registration sensor with high sensitivity to color marks during registration printing. Background technique [0002] As we all know, in overprint printing, CMYB is its basic color, where C is Cyan, M is Magenta, Y is yellow (Yellow), B is black (Black), in order to accurately overprint the subsequent printing pattern on the previous printing pattern On the other hand, the function of the registration sensor is to detect the color mark printed before and the color mark printed this time at the same time, and transmit the electrical signal between the two marks to the controller of the printing machine How much is the error between detecting the distance between two marks and the industry standard of 20mm, so when we choose the spectrum of the light source inside the version sens...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41F33/00B41F13/12
Inventor 刘思贤刘思麟刘文启
Owner 维伦科技股份有限公司
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