Sliding Projection Assembly for Compact Foldable Smart Glasses
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Solution Overview
Problem
The structural stability and compactness of light intelligent glasses are compromised due to the protrusion of the light projection engine when the temples are folded relative to the rim, making them difficult to fold and accommodate.
Innovation Solution
A projection mechanism using an arc-shaped guide rail and a mounting bracket that allows the projection assembly to slide between a first position close to the rim and a second position away from the rim, ensuring accurate positioning and compactness by connecting the rim and temples through these components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the light projection engine and optical elements are fixed on the rim with large thickness to ensure structural stability, then the structural stability is improved, but the glasses become difficult to fold and accommodate
Solution Approach 1:
The patent converts the fixed mounting of the projection engine into a dynamic adjustable system. The projection engine can be positioned at different locations along the temple arm through adjustable mounting structures, allowing the system to adapt between a stable fixed position during use and a compact folded position for storage. This dynamic positioning capability resolves the contradiction between structural stability and folding capability.
2Reliability
If the projection engine is positioned close to the rim for stable imaging, then the imaging stability is improved, but the glasses cannot be compactly folded
Solution Approach 1:
The patent segments the temple arm into multiple adjustable sections along its length. The projection engine can be mounted at different segments depending on the desired configuration - closer to the rim for stable imaging during use, or repositioned to reduce the overall folded volume when storage compactness is prioritized. This segmentation allows flexible positioning to balance imaging stability with compactness requirements.
3Strength
If the rim thickness is increased to accommodate the projection engine, then the structural strength is improved, but the temples cannot closely overlap with the rim
Solution Approach 1:
Instead of increasing rim thickness in one dimension to accommodate the projection engine, the patent utilizes the longitudinal dimension of the temple arm. The projection engine is positioned along the length of the temple rather than requiring increased rim thickness, allowing the temples to maintain thin profiles and closely overlap with the rim when folded, while still providing sufficient structural strength through the extended temple arm design.
Data Source
AI summary
A projection mechanism and glasses are disclosed. The projection mechanism comprises an arc-shaped guide rail, a mounting bracket and a projection assembly. The mounting bracket is slidably arranged on the arc-shaped guide rail. The mounting bracket is provided with a through hole. The projection assembly is inserted in the through hole. The arc-shaped guide rail and the mounting bracket are respectively used to connect the rim and the temples. The mounting bracket can be located at a first position or a second position of the arc-shaped guide rail. When the mounting bracket is located at the first position of the arc-shaped guide rail, a light source output end of the projection assembly faces toward the rim. When the mounting bracket is located at the second position of the arc-shaped guide rail, the projection assembly is far away from the rim.