Symmetric Lighting Device with Curved Light Guide Units
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Solution Overview
Problem
Existing lighting devices lack the ability to effectively control up/down light distribution ratio and pattern, which is essential for various applications requiring specific lighting orientations and efficiencies.
Innovation Solution
A lighting device design featuring symmetrically disposed light sources and light guide units with curved surfaces and optical parts, including reflectors and prisms, to manage light distribution by controlling the emission through top and bottom surfaces, allowing for adjustable light distribution patterns and ratios.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If symmetric light sources and light guide units are used, then light distribution uniformity is improved, but device complexity increases
Solution Approach 1:
The lighting device is divided into symmetric segments (first and second light sources, first and second light guide units, first and second reflectors) positioned on opposite sides of the body. This segmentation creates balanced light distribution while maintaining manageable complexity through modular repetition of identical components.
Solution Approach 2:
The light guide units incorporate asymmetric curved surfaces with different radii of curvature on opposite sides. This controlled asymmetry in the optical path design enables precise control of light distribution patterns while the overall device maintains symmetric component placement for uniformity.
2Ease of operation
If curved light guide units with optical parts are used, then light distribution control is improved, but manufacturing precision requirements increase
Solution Approach 1:
The light guide units feature curved surfaces with defined radii of curvature (first radius R1 and second radius R2) instead of flat surfaces. This curvature enables natural optical guidance and distribution control through geometric optics, reducing the need for complex optical coatings or precision alignment mechanisms.
Solution Approach 2:
The optical properties of the light guide units are controlled by varying physical parameters such as the radius of curvature, thickness distribution, and material refractive index. These parameter changes provide straightforward control over light distribution patterns without requiring complex manufacturing processes.
3Productivity
If multiple light guide units are used, then light extraction efficiency is improved, but device complexity increases
Solution Approach 1:
Multiple light guide units are integrated into a single unified body structure, with each unit serving dual purposes: guiding light from its associated light source and contributing to the overall symmetric light distribution pattern. This merging reduces the need for separate housing components and simplifies the overall device architecture.
Solution Approach 2:
Each light guide unit is designed to perform multiple functions: it guides light from its specific light source, distributes light through its curved surfaces, and contributes to the symmetric overall pattern. The reflectors also serve dual purposes by reflecting light into the light guide units and maintaining optical path symmetry.
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
Enables precise control over light distribution, enhancing lighting efficiency and orientation, and improving light extraction and uniformity in lighting devices.
Implementation Method 1
a first light guide unit which has one side optically coupled to the first light source; and a second light guide unit which has one side optically coupled to the second source
Implementation Method 2
The optical part may have a print pattern or a prism structure
Implementation Method 3
The optical part may have a print pattern or a prism structure
Data Source
AI summary
A lighting device may be provided that includes: a body; a first light source and a second light source, which are disposed on the body and are disposed symmetrically with each other with respect to a central axis of the body; a first light guide unit which is disposed on the first light source and is coupled to the body; and a second light guide unit which is disposed on the second light source and is coupled to the body. The first light guide unit and the second light guide unit are disposed symmetrically with each other with respect to the central axis of the body.