Projector Lens Mount Buffer for Speaker-Induced Vibration
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Solution Overview
Problem
High-power speakers in optical projection devices cause lens vibration, leading to a decline in imaging quality, especially in ultra-short throw projectors, due to resonance and increased sensitivity to vibrations.
Innovation Solution
A projector design featuring a base with a slot and connector system that includes a buffer to absorb vibrations, stabilizing the lens assembly and preventing shaking during image projection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If high-power speakers are used to output sound, then sound quality is improved, but lens vibration occurs causing imaging quality to deteriorate
Solution Approach 1:
A buffer component is introduced as an intermediary element between the lens assembly and the base. This buffer absorbs vibrations generated by high-power speakers, preventing them from transmitting to the lens assembly and affecting imaging quality, while still allowing the lens to be securely mounted
2Length of moving object
If ultra-short throw (UST) lenses are adopted to reduce projection distance, then compactness is improved, but sensitivity to vibrations increases causing imaging quality to worsen
Solution Approach 1:
The buffer is pre-installed in the slot of the base before the lens assembly is mounted. This beforehand cushioning prepares the vibration-absorbing mechanism in advance, ensuring that when the UST lens assembly is installed, vibrations are immediately dampened, preventing the heightened vibration sensitivity from degrading imaging quality
3Stability of the object's composition
If the lens assembly is securely fixed to prevent movement, then imaging stability is improved, but vibration transmission from the base increases
Solution Approach 1:
The buffer serves as a mediator between the rigid connection requirements for stability and the need to block vibration transmission. It allows the lens assembly to be firmly positioned while simultaneously absorbing vibrational energy, preventing its transmission to the lens and maintaining both stability and low vibration
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
The design ensures stable imaging quality and a pleasant user experience by effectively reducing lens vibrations caused by speaker resonance, maintaining image focus and clarity.
Implementation Method 1
The buffer is arranged in the slot, and the first connection part is connected to the second connection part through the buffer. Vibrations received by the lens assembly may be sequentially transmitted to the first fixing part and the second connection part and then absorbed by the buffer in the slot.
Data Source
AI summary
A projector includes a base, an optical engine assembly, a lens assembly, a connector, and a buffer. The base includes a primary plate body and a first connection part connected to the primary plate body. The optical engine assembly is configured to provide an image beam. The lens assembly is arranged above the base and located on a transmission path of the image beam. The connector includes a first fixing part and a second connection part connected to the first fixing part. The first fixing part is fixed to the lens assembly, one of the first connection part and the second connection part is a slot, and the other is movably inserted into the slot. The buffer is arranged in the slot, and the first connection part is connected to the second connection part through the buffer. The projector may effectively prevent lens vibration.