Illuminated Cylindrical Animation Device with Segmented Sleeve Contact
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Solution Overview
Problem
Existing illuminated cylindrical coded image devices struggle to achieve crisp and clear animation due to lack of close contact between inner and outer sleeves, resulting in blurring and poor display characteristics.
Innovation Solution
The device features inner and outer cylindrical sleeves with close contact, allowing for smooth and efficient rotation while maintaining crisp animation, achieved through a fixation member that prevents rotation of the shutter element sleeve relative to the base structure, enabling full cylindrical contact without hindering rotation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the inner and outer cylindrical sleeves are spaced apart to permit free rotation, then rotation smoothness is improved, but image crispness deteriorates due to lack of close contact between coded images and shutter elements
Solution Approach 1:
The invention divides the contact interface into multiple discrete contact points around the circumference of the cylinders. The coded image sleeve and shutter element sleeve are designed with circumferential spacing that creates multiple contact zones, allowing rotation to occur at these segmented points while maintaining overall close contact. This segmentation enables both smooth rotation and crisp image formation simultaneously.
Solution Approach 2:
The invention applies different properties to different regions of the cylindrical sleeves. The surface geometry is designed with localized features such as circumferential grooves or raised elements that create specific contact zones. These local modifications ensure that contact occurs at precise locations for image crispness while leaving other areas free for rotation, thus resolving the contradiction between rotation smoothness and image quality.
2Manufacturing precision
If the inner and outer cylindrical sleeves are in close contact to achieve crisp animation, then image resolution is improved, but rotation efficiency deteriorates due to increased friction
Solution Approach 1:
The contact interface is segmented into discrete circumferential zones rather than continuous contact. This segmentation reduces the total contact area and friction during rotation, while still maintaining sufficient contact at each segment to produce crisp images. The coded image sleeve rotates more efficiently because friction is distributed across multiple small contact points rather than a continuous surface.
Solution Approach 2:
The invention modifies geometric parameters such as the circumference, diameter, or surface texture of the cylindrical sleeves to optimize the balance between contact and rotation. By adjusting these parameters, the system achieves close enough contact for crisp images while minimizing frictional resistance to rotation, thereby improving rotation efficiency without sacrificing image resolution.
3Ease of operation
If the sleeves are spaced apart to prevent frictional resistance, then rotation is facilitated, but animation clarity deteriorates due to blurring
Solution Approach 1:
The invention implements circumferential segmentation of the contact interface, creating multiple discrete contact zones around the cylinder. This allows the sleeves to be spaced apart in non-contact regions, facilitating free rotation, while maintaining close contact at segmented contact zones to prevent blurring and ensure animation clarity. The segmented approach reconciles rotation facilitation with image quality.
Solution Approach 2:
The invention transitions from a two-dimensional flat contact surface to a three-dimensional cylindrical contact interface with circumferential dimension. This dimensional change allows contact and rotation to coexist in different spatial dimensions - contact occurs at specific circumferential locations while rotation occurs along the axial dimension, resolving the contradiction between rotation facilitation and animation clarity.
Data Source
AI summary
An animation device for producing animation of interlaced coded images with inner and outer sleeves retained for concentric rotation, a plurality of coded images retained by one sleeve, and a plurality of spaced shutter elements and interposed viewing elements retained by the other sleeve. The inner and outer sleeves are retained by a base structure with one sleeve rotatable in relation to the base structure and the other sleeve fixed against rotation relative to the base structure. A light source can be disposed within the inner sleeve, and a motor can rotate a platform that retains the rotatable sleeve. The fixed sleeve can be encased and fixed in position by a frusto-conical sleeve forming a fixation member. The inner and outer sleeves can be precisely formed by alignment of registration apertures on a peg board with registration pegs.