3D Printing Color and Translucency Reproduction via Voxel Material Arrangement
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Solution Overview
Problem
Current 3D printing technologies are limited in reproducing both perceived color and translucency of objects, failing to preserve color as translucency changes and vice versa, and are inefficient in processing desired printing data for accurate color and translucency reproduction.
Innovation Solution
A method using a combination of non-transparent and transparent printing materials to construct 3D objects, where input data encodes color and translucency information as RGBA signals, allowing for voxel-based arrangement of materials to achieve accurate color and translucency reproduction, with control data generated for 3D printing devices to manage the printing process effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If only a limited number of printing materials with specific colors are used, then the device complexity is reduced and ease of manufacture is improved, but the color gamut is restricted and color reproduction accuracy deteriorates
Solution Approach 1:
The patent combines transparent and non-transparent printing materials to create composite material structures that expand the color gamut. By layering transparent colored materials with non-transparent materials, the system achieves broader color reproduction capabilities while maintaining practical manufacturability through a limited material library.
2Ease of manufacture
If existing color printing methods focus only on albedo color fabrication, then the ease of manufacture is improved, but the ability to reproduce both perceived color and perceived translucency simultaneously deteriorates
Solution Approach 1:
The patent segments the printing process into distinct transparent and non-transparent material layers, allowing independent control of color and translucency properties. This segmentation enables simultaneous reproduction of both perceived color and perceived translucency by assigning specific functional roles to each material type.
Solution Approach 2:
By combining transparent and non-transparent materials in specific arrangements, the patent creates composite structures that simultaneously achieve desired color and translucency effects, overcoming the limitation of traditional single-material-color approaches.
3Ease of manufacture
If the arrangement of printing materials is determined based only on desired color reproduction, then the ease of manufacture is improved, but the ability to preserve perceived color as translucency changes deteriorates
Solution Approach 1:
The patent changes the arrangement parameters of printing materials based on both desired color and translucency information. By adjusting material placement, layering sequences, and combinations according to dual parameters (color and translucency), the system preserves perceived color even when translucency varies, achieving superior reproduction accuracy.
Data Source
Figure 1~2
Figure 3
Figure 4a~4c
AI summary
A method and a device for three-dimensional joint color and translucency printing, wherein at least a first non-transparent printing material with a first printing material color and at least one transparent printing material (6) is used to construct a printing object (7), wherein an arrangement of the printing materials is determined based on a desired color reproduction of the printing object (7), wherein the arrangement of the printing materials is determined based on a desired translucency reproduction of the printing object (7).