Spectral LED Arrays for Broad Color Range with Fewer Control Channels

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing light arrays face challenges in achieving high performance while maintaining low complexity and cost due to the addition of more differently colored emitters and control channels.

Innovation Solution

Custom LEDs with unique optical properties are developed, combining to create light arrays with improved performance using a lower number of emitter types and channels, such as custom blue, indigo hybrid, green, yellow, and red LEDs, which are integrated into a light fixture with a control system to produce high-quality white light.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If more differently colored emitters and control channels are added to improve color range and performance, then the performance and color rendering improve, but the cost and device complexity increase

Engineering Contradiction:

Improvecolor rangeVSAvoidnumber of control channels

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent combines multiple LED emitter types (blue, indigo, green, yellow, red) into a single integrated light array structure, where different colored LEDs are positioned adjacent to each other on the same substrate. This merging approach allows the system to achieve a broad color range without requiring separate control channels for each emitter type, as they are controlled through a unified control architecture.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The light array is designed with a universal control mechanism that can manage multiple emitter types through a single control channel. The system uses a common current driver that can selectively activate different LED types based on control signals, allowing one control channel to perform multiple functions of color generation and intensity regulation.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If more differently colored emitters and control channels are added to improve color range and performance, then the performance and color rendering improve, but the cost increases

Engineering Contradiction:

Improvecolor rangeVSAvoidcost

Core Design Contradiction:

Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

By integrating multiple LED emitter types into a single array structure with shared control circuitry, the patent reduces the overall component count and assembly complexity. This merging approach lowers manufacturing costs compared to having separate controlled channels for each emitter type, while still achieving broad color coverage.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The universal control mechanism reduces the number of separate control components needed, thereby reducing overall system cost. The single control channel design eliminates the need for multiple dedicated driver circuits, reducing bill of materials costs and simplifying the manufacturing process.

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Productivity

If more emitters and control channels are added to improve performance, then the luminous flux and color rendering improve, but the device complexity increases

Engineering Contradiction:

Improveluminous fluxVSAvoidnumber of control channels

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The patent merges multiple emitter types into a single controlled array, where different colored LEDs contribute to the total luminous flux through a unified control system. This approach maintains high luminous output while reducing control channel complexity, as the single control channel manages the entire array's emission characteristics.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The system uses dynamic control of a single channel to regulate the contribution of different emitter types based on real-time requirements. The control mechanism can dynamically adjust which LED types are active and at what intensity levels, enabling flexible luminous flux control without requiring separate static control channels for each emitter.

Inventive Principle:

Principle #15Dynamics

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 custom LEDs enhance color rendering and luminous efficacy, allowing for high-performance light output with reduced complexity and cost, meeting design criteria for various lighting applications.

Implementation Method 1

a first light emitting diode having a first spectral power distribution and a second light emitting diode having a second spectral power distribution

Methodology Applied

Scientific EffectLight emitting diode: Light Emitting Diode

Implementation Method 2

light emitting diodes (LEDs) used for lighting

Methodology Applied

Scientific EffectElectroluminescence: Electroluminescence

Data Source

PatentEP3835647B1LEDS with spectral power distributions and arrays of LEDS comprising the same

Publication Date: 2025.10.22 ELECTRONIC THEATRE CONTROLS INC

Figure 1
Figure 2
Figure 3

AI summary

A light fixture (22) including a substrate (30) and a plurality of light emitting diodes (34) mounted on the substrate (30). The plurality of light emitting diodes (34) includes a first light emitting diode having a peak wavelength within a range of 600 nanometers and 630 nanometers, and a full width at half maximum value of at least 140 nanometers.