Loudspeaker Diaphragm Light Guide Uniform Illumination
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Solution Overview
Problem
Conventional loudspeakers with illumination functions suffer from irregular brightness due to support structures interrupting light reflection and uneven light distribution from multiple sources.
Innovation Solution
A loudspeaker design incorporating a light-emitting element coupled to a diaphragm with a light-guide portion and reflective surface, ensuring uniform light distribution by diffusing and reflecting light within the diaphragm, eliminating brightness irregularities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If multiple light sources are disposed in front of or behind the diaphragm, then illumination function is achieved, but irregularity in brightness occurs due to support structures interrupting light reflection and uneven light distribution
Solution Approach 1:
A light guide member is introduced as an intermediary component between the light source and the diaphragm. The light guide member receives light from the light source and guides it to illuminate the diaphragm uniformly, preventing direct interruption by support structures and ensuring even light distribution across the diaphragm surface.
Solution Approach 2:
The illumination system is segmented into distinct functional components: a light source, a light guide member, and a diaphragm. This segmentation allows the light guide member to specifically address the uniformity issue by controlling light distribution, while the light source and diaphragm can be optimized for their respective functions independently.
2Illumination intensity
If light sources are disposed in front of the diaphragm for reflection or behind the diaphragm for transmission, then illumination is achieved, but support structures interrupt light paths causing brightness irregularity
Solution Approach 1:
The light guide member is integrated with the diaphragm assembly, merging the illumination function into the existing speaker structure. This integration achieves uniform light distribution without requiring separate complex support structures for light paths, thereby reducing overall structural complexity while maintaining illumination effectiveness.
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 solution achieves high-quality, uniform illumination by diffusing and reflecting light within the diaphragm, enhancing the aesthetic appeal and functionality of the loudspeaker.
Implementation Method 1
light of the light-emitting element enters the diaphragm from the end face thereof, is diffused by the light-guide portion
Implementation Method 2
is reflected by the reflective surface provided on a back face of the light-guide portion
Data Source
AI summary
A loudspeaker includes a light-emitting element, a frame, a magnetic circuit provided with a magnetic gap, a diaphragm, a voice coil bobbin, and a voice coil. The diaphragm includes an inner peripheral end portion having an end face to which a light-emitting element is coupled, a light-guide portion, a reflective surface, and an outer peripheral end portion coupled to the frame. The first end of the voice coil bobbin is coupled to the inner peripheral end portion of the diaphragm, and the second end thereof is inserted into the magnetic gap. A voice coil is wound on the second end of the voice coil bobbin.