Multi-Lens LED Light Apparatus for Focused Beam Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current spotlight and downlight devices face challenges in optimizing light output and reducing manufacturing costs due to complex structures and the difficulty in designing light paths for focused light beams, especially when using LED sources with non-point luminous areas, which can lead to light wastage and heat accumulation.
Innovation Solution
A light apparatus comprising a driver circuit, an LED plate, a central lens with convex structures, and a surrounding lens with refraction lenses, designed to guide light and form a desired beam angle, while allowing for adjustable positions and materials to optimize light direction and reduce manufacturing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If multiple LED modules are arranged in a luminous area to increase light output, then the light output is improved, but the light path design becomes much more difficult and light wastage increases
Solution Approach 1:
The lens is divided into multiple functional regions: a first lens region with first refractive index for receiving light from luminous areas, and a second lens region with second refractive index for correcting light paths. This segmentation allows each region to handle specific light path tasks, simplifying the overall design complexity while maintaining high light output efficiency.
Solution Approach 2:
The second lens region acts as an intermediary between the light source and the final light output. It receives divergent light from multiple LED modules and corrects the light paths before they exit the lens, effectively mediating the complex light interactions and reducing light wastage.
2Illumination intensity
If lens thickness is increased to improve light beam formation, then the light beam quality is improved, but the manufacturing cost and product size increase
Solution Approach 1:
The patent changes the refractive index parameter by using different materials for the first and second lens regions. This parameter change allows for effective light beam formation with reduced lens thickness, as the refractive index difference enables more efficient light control compared to using a single uniform material.
Solution Approach 2:
The lens is constructed as a composite structure with two different lens materials having different refractive indices. This composite material approach enables sophisticated light beam control in a thinner lens design, avoiding the need for increased thickness while maintaining or improving light beam quality.
3Ease of manufacture
If a single lens material is used to simplify manufacturing, then the manufacturing process is simplified, but the light path control and beam formation become less efficient
Solution Approach 1:
Different regions of the lens are assigned different material properties (refractive indices) according to their specific functional requirements. The first lens region uses one material optimized for receiving light from LEDs, while the second lens region uses another material optimized for correcting and shaping light paths, achieving optimal performance in each local area.
Solution Approach 2:
The lens employs composite materials with different refractive indices in different regions, enabling sophisticated light path control and beam formation. This multi-material approach overcomes the limitations of single-material lenses while remaining manufacturable through techniques like injection molding with material switching.
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 effectively directs light to form a focused beam, reduces light wastage, and extends the lifespan of LED devices by minimizing heat accumulation, while offering flexibility and cost reduction through standardized lens components.
Implementation Method 1
The top surface of the central lens has a plurality of convex lens structures for guiding light emitted from the luminous area
Implementation Method 2
The surrounding surface of the surrounding lens has an internal boundary connected to the top surface of the central lens
Data Source
AI summary
A light apparatus for providing a light beam contains a driver circuit, a LED plate, a central lens, a surrounding lens. The LED plate has a luminous area to emit light. The central lens has a bottom surface and a top surface. The bottom surface of the central lens faces to the luminous area. The top surface has multiple lens. The surrounding lens has a surrounding surface connecting to and surrounding the top surface of the central lens. The surrounding lens has a lateral part gradually climbing upwardly away from the luminous area. There are multiple refraction lens disposed on the lateral part.