Stage Light Lens Buffering via Magnetic Repulsion
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Solution Overview
Problem
Stage lights with magnifying or focusing lenses face issues of abnormal noise and damage due to violent collisions with other components when powered off or during transportation, caused by the long moving distance required for adjusting the light spot size and definition.
Innovation Solution
A stage light with a lens buffering feature that includes a dimming lens mounted on a drive mechanism, equipped with first and second buffering magnets of the same polarity on a mounting plate and limit plate, respectively, which repel each other to prevent collision and reduce friction, and a contact buffer to enhance the buffering force without affecting the drive mechanism during normal operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the magnifying lens or focusing lens is allowed to move freely along the optical path for adjusting light spot size and definition, then the adjustment range is improved, but the lens is prone to violent collision with other components under gravity during sudden power-off or transportation
Solution Approach 1:
The patent applies beforehand cushioning by installing buffering magnets on both the limit plate and mounting plate before collision can occur. These magnets create a magnetic repulsion force that acts as a cushion, preventing the dimming lens from violently colliding with other components during sudden power-off or transportation while maintaining the lens's freedom to move for adjustment.
2Reliability
If buffering magnets are installed to prevent collision, then the reliability is improved, but the interaction force between magnets may affect the drive mechanism during normal operation
Solution Approach 1:
The patent applies local quality by strategically positioning the buffering magnets only at specific locations where collision risk exists (on the limit plate and mounting plate), rather than throughout the entire optical path. This localized approach provides buffering protection while minimizing the interaction force's impact on the drive mechanism during normal lens adjustment operations.
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
Effectively prevents collisions and noise by using magnetic repulsion to buffer the dimming lens, ensuring it does not contact other components, while maintaining the functionality of the drive mechanism and reducing the risk of damage.
Implementation Method 1
Polarities of the sides of the first buffering magnet and the second buffering magnet close to each other are the same... with the mutual repulsion between the first buffering magnet and the second buffering magnet, the dimming lens or the mounting plate can avoid collision with other components
Data Source
AI summary
A stage light with a lens buffering feature includes a light source emitting light along an optical path and a dimming lens provided on the optical path. The dimming lens is mounted on a mounting plate and moves freely along the optical path under the driving of a drive mechanism. A limit plate is provided on at least one side of the dimming lens along the direction of the optical path, and the limit plate is provided with a first buffering magnet thereon. The mounting plate is provided with a second buffering magnet corresponding to the first buffering magnet, and the polarities of the sides of the first buffering magnet and the second buffering magnet close to each other are the same. When the stage light is suddenly powered off or during transportation, the dimming lens or the mounting plate can avoid collision with other components.