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Stereoscopic digital printer

A printer, digital technology

Inactive Publication Date: 2012-07-04
BEIJING LANSHEN KECHUANG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that the diffusion of ink dots brings fusion between adjacent pixels of the image. The actual resolution of the printer is not high, and the actual effect of outputting raster stereoscopic images higher than 75 lines is not good. This shows this point.
b. Stereoscopic image pixels have high independence, good image sharpness, and subjective perception of strong stereoscopic effect, clear and thorough; poor pixel independence, stereoscopic images with high fusion degree have poor stereoscopic effect and are not clear
c. The image has no geometric distortion, and even a small distortion will cause a decrease in viewing comfort after compounding the three-dimensional lenticular

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment example 1

[0047] Implementation case 1, using a monochrome LCD to set up an exposure unit of a three-dimensional digital printer.

[0048] The three-dimensional digital printing machine is composed of a paper loading unit, an exposure unit, a printing unit, and a three-dimensional laminating unit. The paper loading unit and the printing unit are the same as the ordinary flat color expansion machine. The exposure unit adopts the principle of direct printing, and is composed of a light source, an image source, and a control computer. The light source part includes a point light source, RGB color filter wheel and shutter, and the RGB color filter color wheel and shutter are exposed according to a predetermined timing under the control of the computer; the image source part includes a monochrome LCD with a unidirectional mask layer and a micro-displacement bracket, LCD is controlled by computer to display exposure image T and micro-displacement in time sequence. The dot pitch of the LCD is...

Embodiment example 2

[0060] Implementation case 2, using a color LCD to set up the exposure unit of a three-dimensional digital color expansion machine.

[0061] The exposure unit is composed of a light source, an image source, and a control computer. The light source part includes a point light source and a shutter, and the shutter is exposed according to a predetermined timing under the control of a computer; the image source part includes a color LCD with a unidirectional mask layer and a micro-displacement bracket, and the LCD is controlled by a computer to display the exposure image T and Micro displacement. The dot pitch of the LCD is 0.24mm, the resolution is 2560*2048, and the size of the display area is 610*490mm. It can output stereoscopic photos of the same format. The pitch of the slit in the one-way mask layer is 0.08mm, and the width of the light-transmitting slit is 0.0267 mm, the exposure accuracy is 952.5dpi. The computer completes the synthesis, normalization processing, color ...

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PUM

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Abstract

The invention discloses a stereoscopic digital printer, which adopts the principle of direct printing and utilizes a high-definition LCD (liquid crystal display) as an image source. Size of sub-pixel is reduced by the mask technology, a point light source or linear light source is projected onto the LCD to expose photosensitive materials, and resolution ratio of output images can be increased by shifting the LCD slightly to realize multiple exposures. Compared with a three-color laser repeater and an inkjet printer, the stereoscopic digital printer has the advantage that the transverse definition thereof is increased by at least three times, can output high-precision planar or stereoscopic reflector sheets or transmitting sheets, and can be applied to the photography and advertisement industries widely.

Description

Technical field: [0001] The present invention relates to a digital picture output device, more specifically, to a digital printer for outputting three-dimensional pictures, which can be used for high-precision output of three-dimensional photos and three-dimensional advertisements. Background technique: [0002] Mainstream digital color expansion machine image output technology includes LASER technology and LDD technology. LASER technology is the laser method, which converts digital electrical signals into red, green, and blue light through red, green, and blue laser tubes and exposes them to photographic paper. The laser has the characteristics of good monochromaticity and almost no diffusion, and can produce clear images. High degree of sharpness, very high sharpness, and very vivid colors are the characteristics of photos, and it is easy to achieve large-format exposure. The laser beam is directly sent to the photo paper to make it photosensitive, without the participati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B27/72
Inventor 薄淑英
Owner BEIJING LANSHEN KECHUANG TECH
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