LED Cluster Lighting Device for Noise-Free Dynamic Illumination
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Solution Overview
Problem
Current light emitting devices that aim to replicate natural dynamic lighting effects, such as those from sunlight, are often expensive and noisy, and lack the ability to provide high-quality images when used at close distances to the surface being illuminated.
Innovation Solution
A light emitting device comprising a cluster of at least two light sources and lenses, where each lens creates a distinct illuminance pattern with varying colors and brightness, arranged in a specific configuration to produce natural dynamic lighting effects without noise, and can be used at close distances to provide high-quality images.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If ultra-short throw LCD projectors are used to project visual content on a wall, then a crisp image can be obtained at close distance, but the device produces high noise due to fan cooling and incurs high cost
Solution Approach 1:
The patent replaces the mechanical fan cooling system of LCD projectors with a solid-state LED light source system. The LEDs generate light without requiring active cooling, thereby eliminating the noise-generating fan while maintaining the ability to project high-quality images at close distances onto surfaces.
Solution Approach 2:
The patent changes the fundamental operating parameters by switching from LCD projection technology to LED-based direct illumination. This parameter change enables the system to achieve crisp image quality without the thermal management requirements that necessitate noisy fan cooling in traditional projectors.
2Measurement precision
If ultra-short throw LCD projectors are used to project visual content on a wall, then a crisp image can be obtained at close distance, but the device incurs high cost
Solution Approach 1:
The patent employs inexpensive LED components and simple optical elements (lenses) rather than expensive LCD projection systems. The use of readily available LEDs and basic lens arrangements significantly reduces manufacturing costs while achieving comparable or superior image quality at close viewing distances.
Solution Approach 2:
The patent replaces complex mechanical projection systems with a simpler LED-based direct illumination system. This substitution eliminates expensive mechanical components, complex alignment mechanisms, and thermal management systems, resulting in a cost-effective solution that maintains high image quality.
3Adaptability or versatility
If conventional lighting systems are used to create dynamic lighting effects, then natural dynamic lighting effects can be simulated, but the device complexity increases with multiple lighting elements and control systems
Solution Approach 1:
The patent divides the illumination task among multiple LEDs and lenses, where each LED-lens combination generates a specific illuminance pattern. By segmenting the overall illumination into multiple simpler sub-patterns that can be independently controlled, the system achieves complex dynamic lighting effects while keeping each individual component simple and manageable.
Solution Approach 2:
The patent combines multiple LED light sources with corresponding lenses to create a unified illumination system. The individual illuminance patterns from each LED-lens pair are merged on the target surface to produce complex dynamic lighting effects, achieving versatility through combination rather than through complex individual components.
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 device effectively creates high-quality, natural dynamic lighting effects with minimal components and low production costs, while being quiet in operation and capable of producing sharp, detailed patterns at close distances, thus overcoming the limitations of existing technologies.
Implementation Method 1
at least one first lens associated with the first light source, and at least one second lens associated with the second light source, wherein the first lens is configured to create a first illuminance pattern in a plane P and the second lens is configured to create a second illuminance pattern in the plane P
Data Source
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AI summary
A light emitting device comprising at least one cluster (11) of light sources and lenses, the at least one cluster (11) comprising a first light source (21) and a second light source (22), a first lens (31) associated with the first light source (21), and a second lens (32) associated with the second light source (22), where the first light source (21) and the first lens (31) and the second light source (22) and the second lens (32), respectively, are arranged in a predefined distance D from the plane P, the predefined distance D being measured in a direction extending perpendicular to the plane P, where the first light source (21) and the first lens (31) are arranged on a first axis (41), and the second light source (22) and the second lens (32) are arranged on a second axis (42), where the first light source (21) and the first lens (31) and the second light source (22) and the second lens (32), respectively, are further arranged and on a straight line extending in parallel with the plane P and perpendicular to the direction in which the distance D is measured.