3D Photographic Printer with Dynamic Image Shifting
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Solution Overview
Problem
Current 3D photographic printing methods struggle to effectively compose images at different viewing angles onto lenticular sheets, leading to incomplete image coverage and quality issues due to misalignment and gaps in compressed images.
Innovation Solution
A method and apparatus using a digital display device with a monochrome panel, an optical image forming device, and a light source to project images onto 3D print material at various angles, allowing for electronic shifting of images and mechanical adjustments of the print material and optical device to ensure complete coverage and alignment, utilizing a lenticular screen with photosensitive emulsion and a porous backing layer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If images are projected onto lenticular sheets using conventional methods, then 3D photographs can be produced, but incomplete image coverage and quality issues occur due to misalignment and gaps in compressed images
Solution Approach 1:
The patent implements dynamic adjustment mechanisms that allow the optical image forming device and print material to be mechanically shifted during the projection process. This enables real-time alignment optimization, where the system can adaptively adjust the position of projected images to eliminate gaps and ensure complete coverage on the lenticular sheet, directly resolving the misalignment and incomplete coverage issues.
Solution Approach 2:
The patent incorporates feedback mechanisms through electronic shifting capabilities that allow images to be adjusted based on alignment requirements. The system can detect misalignment conditions and electronically shift images to correct positioning, ensuring proper alignment between compressed images and lenticules while maintaining complete image coverage.
2Adaptability or versatility
If multiple images are projected at different angles onto the same print material, then complete 3D scene coverage is achieved, but image alignment and Moire effects become problematic
Solution Approach 1:
The patent employs dynamic mechanical shifting of the print material and optical device to adjust the projection angles of multiple images. By precisely controlling the angular positioning through mechanical adjustment, the system can optimize the arrangement of compressed images relative to lenticules, reducing Moire effects while maintaining comprehensive viewing angle coverage for 3D scene reconstruction.
Solution Approach 2:
The patent utilizes electronic shifting mechanisms to replace or supplement mechanical adjustment systems. Through electronic control, images can be shifted and repositioned digitally before projection, providing precise control over image placement and angle without the physical constraints and inaccuracies of purely mechanical systems, thereby reducing Moire effects while maintaining multi-angle coverage.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach enables the creation of high-quality 3D photographs with complete image coverage and reduced Moire effects by aligning and adjusting images electronically and mechanically, improving the overall resolution and appearance of 3D printed images.
Implementation Method 1
an optical image forming device arranged to project the images onto a print material at a plurality of projection angles
Implementation Method 2
optical image forming device located on a second plane spaced from the first plane, the optical image forming device arranged to project the images
Implementation Method 3
a lenticular sheet disposed on top of an image sheet... a photosensitive emulsion and a backing layer
Data Source
AI summary
A 3D photographic printer uses a monochrome panel for displaying two or more images for composing a 3D photograph. Each image has a plurality of color image components. A light source with selectable color light components is used to illuminate the monochrome panel corresponding to the displayed color image components. The images are displayed at different locations so that these images can be projected onto a 3D print material through a projection lens at different projection angles. With the digital display device, it is possible to electronically locate the images at different locations and shift the images or mechanically moving the display device during the 3D photographic composing process. It is also possible that only the print material is mechanically shifted to different locations. The display device and the projection lens can be stationary.