Grid point making method for lenticular screen three-dimensional printed chart
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A technology of three-dimensional printing and lenticular lenticular, which is applied in the printing field and can solve problems such as unsuitable lenticular lenticular stereograms, reduced image clarity and three-dimensionality
Inactive Publication Date: 2009-08-19
THE PLA INFORMATION ENG UNIV
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[0002] With the development of science and technology and the improvement of people's living standards, the diversification and personalization of printing products, lenticular lenticular three-dimensional printing products are also being promoted and applied more and more, but the printing outlets currently used are still conventional
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Embodiment 1
[0048] (1), with 70 lines / inch grating, direct plate making with 2400 dots / inch resolution on Heidelberg TopSetter102 direct plate-making machine, adopt formula (1), obtain:
[0049] a · n ≈ 2400 70
[0050] a·n≈34
[0051] a ≈ 34 n ,
[0052] From the above calculations, we can see that:
[0053] With 70 lines / inch grating and 2400 dots / inch output device output, when each view generates 1 row of laser dots (n=1), the number of stereoscopic views required to be produced is 34; when each view generates 2 rows of laser When point (n=2), the number of stereoscopic views required to make is 17, in the present embodiment, get n=2;
[0054] (2), the outlet model is carried out mathematical modeling, the establishment method is:
[0055] (1) Determine the size of the dot unit
[0056] 1) According to the calculation fo...
Embodiment 2
[0085] (1), with 75 lines / inch grating, direct plate making with 2400 points / inch resolution on the Heidelberg TopSetter102 direct plate-making machine, adopt formula (1), obtain:
[0086] a · n = 2400 75
[0087] a·n=34
[0088] a = 34 n ,
[0089] From the above calculations, we can see that:
[0090] With 75 lines / inch grating and 2400 dots / inch output device output, when each view generates 4 rows of laser points (n=4), the number of stereoscopic views required to be made is 8;
[0091] (2), the outlet model is carried out mathematical modeling, the establishment method is:
[0092] (1) Determine the size of the dot unit
[0093] 1) According to the calculation formula of the human eye's ability to distinguish objects, determine the height of the dot unit;
[0094] From formula (2):
[0095] ...
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Abstract
The invention relates to a method for manufacturing printing dots of a lenticular grating stereoscopic printing map, which effectively solves the problems of improving the definition and stereoscopic impression of the lenticular grating printing map; the method thereof is as follows: according to the number of lines of used grating plates, the resolution of an output device, and the number of rows of laser points which are generated by each view, the number of images in accordance with the subdivision by visual angle and a printing dot manufacture model are determined; the computer is used for programming so as to obtain a printing dot generating program 3D-RIP which is implemented by the computer for obtaining the printing dot binary image of each color version; a film manuscript of the image is sent to a compositor by a laser typesetter or the printing version is output by a direct computer plate-making machine; the printing dot is output onto the film or the printing version; and by using a stereoscopic map printing method, a printing product of high definition and super-strong stereoscopic sense is obtained. The method is simple and easy for operation, greatly improves the expressive ability of the grating stereoscopic printing products, enhances the quality and competitiveness of the products, saves the production consumables, has broad application prospects, and enormous economic and social benefits.
Description
1. Technical field [0001] The invention relates to the field of printing, in particular to a method for making dots of lenticular lenticular three-dimensional printing images. 2. Technical Background [0002] With the development of science and technology and the improvement of people's living standards, the diversification and personalization of printing products, lenticular lenticular three-dimensional printing products are also being promoted and applied more and more, but the printing outlets currently used are still conventional Due to the particularity of the three-dimensional image in the representation of AM or FM dots, the use of conventional dots will greatly reduce the clarity and three-dimensionality of the image, so conventional dots are not suitable for printing lenticular lenticular stereograms. Can a kind of What about the new method of making dots? 3. Contents of the invention [0003] In view of the above situation, in order to overcome the defects of th...
Claims
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