Book-Like 3D Card Viewer for Thin, Ambient-Light Observation
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Solution Overview
Problem
Conventional 3D devices are not suitable for collection cards due to excessive volume, weight, and the need for external lighting, and they cannot be applied to book structures without compromising the standard dimensions and aesthetics.
Innovation Solution
A 3D collection card system comprising a 3D observation device with a thin-film structure and left and right lenses, integrated into a book-like case, allowing for 3D images to be viewed with ambient light, and accommodating multiple cards for easy handling and storage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional 3D devices are used, then 3D image viewing is enabled, but the device volume and weight become excessive
Solution Approach 1:
The 3D observation device is divided into separate components: a book-like case containing optical elements (lenses, mirrors) and a separate 3D card with printed images. This segmentation allows the viewing function to be distributed, reducing the volume of any single component while maintaining the complete 3D viewing capability.
Solution Approach 2:
The patent transitions from traditional front-illuminated 3D displays to back-illuminated transmission mode. By printing images on the back surface of transparent cards and illuminating from behind, the system achieves 3D viewing in a thinner profile, effectively utilizing the z-dimension (thickness) to reduce overall device volume.
2Reliability
If conventional 3D devices are used, then 3D image viewing is enabled, but the device weight becomes excessive
Solution Approach 1:
The patent employs lightweight, disposable-like components such as printed transparent cards with images and simple optical elements. These replace heavy, permanent 3D display devices, achieving 3D viewing with minimal weight while the cards can be easily replaced or discarded after use.
Solution Approach 2:
The system uses thin transparent cards with printed images instead of bulky solid-state displays. These thin-film structures provide the necessary optical function for 3D viewing while contributing minimal weight to the overall system.
3Reliability
If conventional 3D devices are used, then 3D image viewing is enabled, but external lighting is required which complicates the structure
Solution Approach 1:
The system uses ambient environmental light as the illumination source rather than incorporating built-in lighting systems. The transparent cards and optical elements are designed to work with externally available light, allowing the device to serve itself by utilizing the surrounding environment's resources.
Solution Approach 2:
The optical elements (lenses, mirrors) in the book-like case serve multiple functions: they guide ambient light through the transparent cards, create the 3D viewing effect, and eliminate the need for dedicated lighting structures. This multi-functionality reduces overall device complexity.
4Reliability
If film-based 3D screens are used, then 3D viewing is possible, but toxic chemicals are required which limits mass production
Solution Approach 1:
The patent replaces chemical film-based 3D displays with a mechanical/optical printing system. Images are printed on transparent cards using conventional printing methods, eliminating the need for toxic chemical processing while maintaining 3D viewing functionality through optical element arrangement.
Solution Approach 2:
The system combines transparent card material with printed image layers and optical elements to create a composite structure that achieves 3D viewing without relying on toxic chemical films. This composite approach enables standard manufacturing processes to be used.
5Reliability
If book thickness exceeds 20-50 mm, then 3D device functionality is achieved, but the book shape becomes unattractive and handling becomes inconvenient
Solution Approach 1:
The book-like case is designed with dynamic elements that can fold or adjust, allowing the optical path length (which determines 3D functionality) to be achieved through folding mechanisms rather than straight-line thickness. This maintains a thin, attractive book shape while providing sufficient optical path for 3D viewing.
Solution Approach 2:
Optical elements and structural components are nested within each other in a compact arrangement, allowing the book to maintain a thin profile while containing all necessary elements for 3D viewing functionality. The nested structure eliminates the need for excessive thickness.
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
Enables large-scale 3D image viewing with improved resolution and reduced weight, facilitating easy handling and storage, while maintaining book-like dimensions and aesthetics, and allowing mass production without the use of toxic chemicals.
Implementation Method 1
a blocking film (15)
Implementation Method 2
left and right lenses (20, 22)
Data Source
AI summary
The present invention relates to a 3D collection card system including a book case, a 3D collection card, and a 3D observation device, wherein 3D pictures are configured on both left and right sides of a center line of the 3D collection card, and a fixing means is provided at a lower end thereof, the 3D observation device is provided with a blocking film and a fixing base on which left and right lenses folded to the left and right and 3D cards are mounted in link with a resilient device, each of the 3D collection card and the 3D observation device is configured in the form of a book, so that a user uses the 3D observation device with one hand and frequently replaces the 3D collection card with the other one hand.