Lamp Assembly with Diffuser and Collimator for LED Color Mixing
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Solution Overview
Problem
Existing lamp assemblies with light-emitting diodes (LEDs) face inadequate color mixing and light collimation performance for atmosphere and ambience lighting applications, which affects the quality of illumination and user experience.
Innovation Solution
A lamp assembly with a chamber that includes diffusing means to diffuse light emitted by LEDs, followed by collimation means to collimate the diffused light, ensuring optimal mixing and direction of light for improved illumination, along with a control system for adjusting light characteristics based on user preferences or environmental sensing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If light-emitting diodes are used for atmosphere and ambience lighting, then energy efficiency and longevity are improved, but color mixing and light collimation performance deteriorate
Solution Approach 1:
A diffuser plate is introduced as an intermediary component between the LED array and the environment. This diffuser plate scatters the light from multiple LEDs, enabling effective color mixing while maintaining the energy efficiency of LED technology. The diffuser acts as a mediator that transforms the direct, non-mixed light from individual LEDs into a uniformly mixed illumination.
Solution Approach 2:
The patent arranges LEDs in a three-dimensional configuration within a housing, with the diffuser plate positioned at a specific distance to create optimal mixing angles. By utilizing spatial dimensionality and angular distribution of light paths, the system achieves superior color mixing performance while maintaining LED energy efficiency.
2Quantity of substance
If multiple light-emitting diodes are arranged in a lamp assembly, then light output and versatility are improved, but color mixing and light collimation performance deteriorate
Solution Approach 1:
The diffuser plate serves as a mediator that receives light from multiple LEDs and redistributes it in a controlled manner. This intermediary component enables the system to utilize multiple LEDs for enhanced light output and color versatility while achieving uniform collimation through the diffuser's light-scattering properties.
Solution Approach 2:
The lighting system is segmented into distinct functional zones: an LED array section for light generation, a diffuser plate section for light mixing and collimation, and a housing structure for support. This segmentation allows each component to optimize its specific function, enabling multiple LEDs to work together effectively without compromising collimation performance.
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 enhanced color mixing and collimation, providing efficient and customizable lighting that compensates for variations in LED light flux and color, enhancing luminance and user experience in ambience and atmosphere lighting.
Implementation Method 1
diffusing means capable of diffusing said visible light of said light-emitting diodes to produce diffuse light
Implementation Method 2
collimation means arranged to collimate at least a portion of said diffused light for illuminating said surface
Implementation Method 3
The embodiment of the invention as defined in claim 7 provides the advantage that the surface can be illuminated in a colored fashion. The diffuse reflective surface of the cavity provides efficient color mixing in this embodiment.
Data Source
AI summary
The invention relates to a lamp assembly (1) for illuminating a surface (S) comprising a chamber (3) accommodating a plurality of light-emitting diodes (11R, 11G, 11B) capable of emitting visible light. The lamp assembly comprises diffusing means (12) capable of diffusing said visible light of said light-emitting diodes to produce diffuse light (D), and said chamber further accommodates collimation means (5) arranged to collimate at least a portion of said diffused light for illuminating said surface. The lamp assembly is especially suitable for ambiance and atmosphere lighting applications.