Grating three-dimensional printing color pictures of the production board comparison (2) - grating panels, three-dimensional printing - Printing

Grating three-dimensional printing color pictures of the production board comparison (2) - grating panels, three-dimensional printing - Printing

Three-dimensional grating plate Print (A) of the grating structure and characteristics of board

Grating plate in order of a string of cylindrical lens, the light refracted through the image, and lens focal length, radius of the focal length, angle will affect the imaging results.

Grating plate itself, the proportion of materials, heat distortion temperature, transparency, refractive index will affect the three-dimensional effects and post-production process. Grating plate is every inch the number of columnar lens (Lenticules-Per-Inch, LPl) differentiate their products. Because each board has a different grating line number, refractive index, thickness and angle of view, therefore, an indication of the effects are different, grating panels are made of PET (polyester), PP (polypropylene), PVC (polyvinyl chloride ) and PS (polystyrene), and acrylic are several.

Grating plate lines (LPI) options for printing from the three-dimensional imaging is also very important to the world of the grating plate production lines from 10LPI (about 3mm) to 200LPI (0.2mm), while its size Specifications are mostly 20 "x28" inch. Grating plate material used to size and use, there are several (Wu and, 2005a):

1. Thickness of 0.25mm, lines 141LPI of PET (Poly EthyleneTerephthalate) grating plate, and its application in the mobile phone panel, stamps, DVD CD-ROM and other commodities.

2. Thickness of 0.35mm, lines 100LPI of PET grating plate, and their use in fine Package Boxes, wine boxes, VCD discs Label And other commodities.

3. Thickness of 0.46mm, lines 75LPI of PET grating plate, and its application in the card, PCS, credit cards, stationery, books and other products.

4. Thickness of 0.68mm, lines 62LPI of PET grating plate, and its application in the poster card, tag, postcards and other commodities.

Grating plate differences owing different perspectives, but have different uses, wide viewing angle effect for changing plans, narrow viewing angle effect is suitable for three-dimensional map. Usually according to price and demand for three-dimensional effect and application performance to make a decision.

(B) of the grating plate style effects and three-dimensional map production

Three-dimensional printing plate grating effect of a wide range of performance, generally speaking can be divided into 3D stereo effect, variable map effect, change into small effect, a continuous dynamic effect, Morph (similar to the effect of a progressive change of face changes in the way), three-dimensional Moire effect or combination of the above results show several methods (Wu and, 2005). 3D stereo effect of which can be directly applied to a method of producing three-dimensional map. 3D stereo effect is divided into pseudo 3D (Layer3D) and true 3D (True3D) two ways. 3D stereoscopic system using fake leaflet photo or video, according to subjective judgments of depth of field objects, their levels before and after the separation, and then produce a shift in the image using software, then split to form three-dimensional vision can be grating plate to the image: True 3D three-dimensional effect is to use professional three-dimensional camera angles while shooting video, or use 3D animation software to simulate the multiple images of different angles, the software produced by professional three-dimensional synthetic images generated before and after displacement by the printed image resulting from the grating plate with depth before and after the level effect. In the three-dimensional map production, although you can get consistent three-dimensional nature of Aerial photography or photogrammetry, but the geometric relationship with the existing software may not fit in, and therefore a single photo or image and numerical data to create three-dimensional map of the terrain is more convenient .

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