Opaline Diffuser LED Lighting Device Homogeneity
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Solution Overview
Problem
Existing LED lighting devices face challenges in achieving homogeneous and uniform lighting with high intensity due to their point-like nature, and they lack the ability to produce aesthetically appealing and versatile shapes and luminous effects.
Innovation Solution
A LED lighting device featuring a ring-shaped or tubular structure with a hollow chamber housing a ring or tubular LED light source and an opaline diffuser with high reflectance and transmission coefficients, combined with a thermal dissipator support, which enhances lighting homogeneity and efficiency by optimizing light distribution and reuse.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If traditional point-like LED light sources are used, then the device structure is simple, but the lighting homogeneity and uniformity are poor
Solution Approach 1:
The patent segments the light source into multiple individual LEDs arranged in a specific geometric pattern (e.g., vertices of a regular polygon) rather than using a single point source. This segmentation allows light to be distributed from multiple locations, creating homogeneous illumination across the target surface while maintaining a relatively simple overall device structure.
Solution Approach 2:
The patent transitions from a one-dimensional linear LED arrangement to a two-dimensional or three-dimensional geometric configuration (such as vertices of a triangle, square, or other regular polygon). This dimensional change enables light to reach the target surface from multiple angular directions, significantly improving lighting homogeneity and uniformity.
2Illumination intensity
If multiple optical elements are added to improve light distribution, then lighting homogeneity improves, but light loss increases
Solution Approach 1:
The patent extracts and eliminates unnecessary intermediate optical elements (such as complex diffusers, reflectors, or lenses) from the light path. By using direct geometric arrangement of multiple LEDs, the system achieves homogeneous lighting without the light losses associated with multiple optical transformations and interfaces.
Solution Approach 2:
The geometric arrangement of multiple LEDs serves its own light distribution function without requiring additional optical elements. Each LED contributes to the overall homogeneous illumination pattern through its specific position and orientation, making the system self-sufficient and minimizing light loss.
3Adaptability or versatility
If traditional LED arrangements are used, then manufacturing is simple, but aesthetic versatility and luminous effects are limited
Solution Approach 1:
The patent employs a universal geometric framework (vertices of regular polygons) that can be scaled and adapted to create various shapes and sizes. The same basic principle applies whether creating triangular, square, or other polygonal configurations, allowing aesthetic versatility while maintaining manufacturing simplicity through standardized production processes.
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 provides high lighting homogeneity and efficiency, allowing for various shapes and configurations, and produces original and attractive luminous effects, improving upon existing devices by ensuring uniform light emission and reducing light loss.
Implementation Method 1
a diffuser (6), which constitutes a wall (7) of the chamber (4) and is provided with an outer surface (8) defining an emission surface of the device (1)
Implementation Method 2
The face 15 from which the LEDs 10 extend is covered by a diffusing coating 16, made of a diffusing white material and having high reflectance, i.e. having a reflection coefficient of at least 95%
Implementation Method 3
a LED light source 5, housed in the chamber 4
Implementation Method 4
the LEDs 10 are arranged on a LED strip 11 consisting of a flexible band carrying a succession of LEDs 10 connected by a circuit or electronic board
Implementation Method 5
the LEDs 10 are mounted, via the LED strip 11, on an annular support 13, for example made of aluminium, which also serves as a thermal dissipator
Data Source
Figure 1~3
Figure 2
Figure 4
AI summary
A LED lighting device (1) comprises a lighting body (3) extending along an axis (A) and internally provided with a chamber (4) housing a LED light source (5) and is delimited by at least one lateral wall (7) consisting of a diffuser (6) having an outer surface (8) defining an emission surface of the device (1); the diffuser (6) is an opaline diffuser having a transmission coefficient greater than or equal to 50% and a reflection coefficient greater than or equal to 45%.