Felt Array Light Fixture for Acoustic Dampening

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Large commercial spaces often suffer from sound reverberation issues due to their size, leading to muddled voices and unclear sounds, which can deter listeners and make communication more laborious.

Innovation Solution

A sound-dampening light fixture design featuring a structural center portion with interconnecting rings and panels arranged at angles to absorb sound waves, constructed from materials like felted polyethylene terephthalate (PET) fibers, which can be customized and interconnected to fit specific room acoustics, along with programmable lighting for directional control.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If large commercial spaces use traditional light fixtures, then lighting coverage is provided, but sound reverberation increases causing muddled voices and unclear sounds

Engineering Contradiction:
Improvesound reverberationVSAvoidacoustic clarity
Core Design Contradiction:
Object-affected harmful factorsVSReliability

Solution Approach 1:

The light fixture is designed to perform multiple functions simultaneously: providing illumination through integrated light sources and dampening sound waves through specially configured panels. This multi-functional approach allows a single device to address both lighting and acoustic clarity issues in large commercial spaces without requiring separate sound treatment installations.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The fixture incorporates panels made from felted polyethylene terephthalate (PET) fibers, which are porous materials effective at absorbing sound waves. These panels are arranged circumferentially around the light source housing, creating a structure that allows sound energy to enter and be absorbed, thereby reducing reverberation and improving acoustic clarity in the space.

Inventive Principle:
Principle #31Porous materials

2Object-affected harmful factors

If sound-dampening panels are added to light fixtures, then acoustic clarity improves, but device complexity increases

Engineering Contradiction:
ImprovereverberationVSAvoidfixture structure
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The invention merges the sound-dampening function with the light fixture structure by integrating panels directly into the fixture housing. The panels are positioned circumferentially around the light source, combining acoustic treatment with the照明 structure in a unified design, thereby reducing overall system complexity compared to separate installations.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The panels are arranged at specific angles optimized for sound wave dampening, and the fixture incorporates programmable lighting with adjustable directional control. By optimizing geometric parameters (panel angles) and operational parameters (light direction), the design achieves effective sound dampening and flexible lighting control without excessive structural complexity.

Inventive Principle:
Principle #35Parameter changes

3Object-affected harmful factors

If panels are arranged at specific angles for sound dampening, then acoustic performance improves, but manufacturing precision requirements increase

Engineering Contradiction:
Improvesound wave dampeningVSAvoidpanel angle
Core Design Contradiction:
Object-affected harmful factorsVSManufacturing precision

Solution Approach 1:

The sound-dampening structure is divided into multiple discrete panels arranged circumferentially around the light source housing. Each panel can be manufactured and positioned independently, allowing for modular assembly. This segmentation reduces the precision requirements for each individual panel while maintaining overall acoustic effectiveness through the collective arrangement of multiple panels.

Inventive Principle:
Principle #1Segmentation

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 significantly reduces reverberation and enhances acoustic clarity in rooms by achieving a high noise reduction coefficient (NRC) of nearly 1.0, improving communication and ambiance while providing flexible and customizable lighting solutions.

Implementation Method 1

The panels are constructed from material that further dampens sound waves coming into contact therewith... achieving a high noise reduction coefficient (NRC) of nearly 1.0

Methodology Applied
Scientific EffectSound absorption: Acoustic Absorption

Data Source

PatentUS11250828B2Felt array
Publication Date: 2022.02.15 3FORM
  • US11250828B2 patent drawing
  • US11250828B2 patent drawing
  • US11250828B2 patent drawing

AI summary

Embodiments are generally directed to a sound-dampening light fixture. In one embodiment, the sound-dampening light fixture includes the following: a structural center portion that includes a housing for a light source, and at least one interconnecting ring that includes connection points for connecting panels to the interconnecting ring. The sound-dampening light fixture also includes panels arranged circumferentially around the structural center portion. The panels are connected to the interconnecting ring at the connection points. The panels are arranged at angles that are designed to dampen sound waves, and are constructed from material that further dampens sound waves coming into contact therewith.