Light Tunnel Fabricating Apparatus with Internal Positioning
Solution Overview
Problem
Conventional fabricating processes for light tunnels rely on external positioning, making it difficult to control and stabilize the inner profile dimensions, leading to unstable product quality in mass production.
Innovation Solution
A fabricating apparatus comprising a core rod, fixing block, and moving block, which allows for internal positioning and adjustment of reflecting sheets to define precise inner profiles, ensuring accurate control over the inner dimensions of the light tunnel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If external positioning is used to fabricate light tunnel, then the fabrication process is simple, but the inner profile dimensions cannot be controlled precisely
Solution Approach 1:
The patent inverts the conventional external positioning approach by introducing internal positioning features (protrusions and recesses) that directly define the inner profile dimensions. The positioning structures are placed inside the light tunnel assembly, with protrusions on the first end portion fitting into recesses on the second end portion, thereby establishing precise inner dimensions through internal geometry rather than external constraints.
Solution Approach 2:
The patent introduces positioning structures (protrusions and recesses) as intermediary elements between the first and second end portions. These positioning structures serve as mediators that transmit and establish the precise dimensional relationship between the two ends, ensuring accurate inner profile dimensions without requiring complex external positioning apparatus.
2Device complexity
If external positioning is used to fabricate light tunnel, then the apparatus structure is simple, but the product quality is unstable in mass production
Solution Approach 1:
The patent inverts the conventional external positioning approach by introducing internal positioning features (protrusions and recesses) that directly define the inner profile dimensions. The positioning structures are placed inside the light tunnel assembly, with protrusions on the first end portion fitting into recesses on the second end portion, thereby establishing precise inner dimensions through internal geometry rather than external constraints.
Solution Approach 2:
The positioning structures (protrusions and recesses) are pre-formed on the end portions during the manufacturing process. This preliminary action ensures that when the light tunnel assembly is assembled, the inner profile dimensions are automatically and consistently controlled, eliminating the need for complex external positioning apparatus and ensuring stable product quality in mass production.
3Ease of operation
If external positioning is used to fabricate light tunnel, then the fabrication process is straightforward, but too many factors affect the inner profile dimensions
Solution Approach 1:
The patent inverts the conventional external positioning approach by introducing internal positioning features (protrusions and recesses) that directly define the inner profile dimensions. The positioning structures are placed inside the light tunnel assembly, with protrusions on the first end portion fitting into recesses on the second end portion, thereby establishing precise inner dimensions through internal geometry rather than external constraints.
Data Source
AI summary
A fabricating apparatus for a light tunnel is provided, which comprises a core rod, a fixing block and a moving block. The light tunnel comprises a plurality of reflecting sheets, and each reflecting sheet leans on both a plurality of first bumps of the fixing block and a plurality of second bumps of the moving block to define a first inner profile and a second inner profile of the light tunnel, respectively. Thereby, the fabricating apparatus defines the inner scope of the light tunnel, and the inner scope of the light tunnel can be easily and stably controlled. Furthermore, a fabricating method for fabricating the light tunnel is also provided.