Detachable Asymmetrical Window Light Module
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Solution Overview
Problem
Conventional light emitting device modules used in external fixtures, such as street lights, lack a durable and easily maintainable design, as the holder and window are typically integrally formed, making individual replacement of defective components difficult and limiting flexibility in light direction adjustment.
Innovation Solution
A light emitting device module with a substrate and detachable windows, where each window has an asymmetrical shape and is coupled to a holder with corresponding asymmetrical openings and protrusions, allowing for individual attachment and detachment, and enabling precise control of light direction through anisotropic light emission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If the holder and window are integrally formed, then the structure is simple and durable, but individual replacement of defective components is difficult and maintenance is complex
Solution Approach 1:
The patent divides the holder and window into separate detachable components. The window can be individually removed from the holder through a snap-fit mechanism, allowing defective windows to be replaced without replacing the entire assembly. This segmentation enables easy maintenance while keeping the overall structure relatively simple.
2Manufacturing precision
If the window has an asymmetrical shape, then light direction can be precisely controlled, but manufacturing and alignment become more difficult
Solution Approach 1:
The patent employs an asymmetrical window shape with a specific geometric profile that controls light direction. The asymmetry is intentionally designed to create anisotropic light emission patterns, allowing precise control of light distribution in different directions. The manufacturing process accommodates this asymmetry through molded fabrication techniques.
3Adaptability or versatility
If the holder has multiple openings for multiple windows, then light emission patterns can be adjusted, but alignment and positioning become more complex
Solution Approach 1:
The holder is designed with multiple identical openings that can accommodate different window types. Each opening has the same geometric configuration, allowing the holder to universally accept various window designs. This multi-functional design enables flexible light emission patterns while keeping the holder structure standardized and simple.
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
This design allows for easy repair and adjustment of light direction by replacing individual windows, enhancing durability and flexibility in light emission profiles, while preventing misalignment and facilitating efficient maintenance.
Implementation Method 1
A light emitting diode is a semiconductor light emitting device that emits a light due to an electric potential difference when electrons and holes are recombined with each other in a P-N semiconductor junction structure by a current applied thereto
Implementation Method 2
Each of the windows is individually provided in a corresponding opening among the opening and detachably coupled to the holder. Each of the windows is individually provided in the opening along a direction to anisotropically control an advance direction of the light
Data Source
Figure 1
Figure 2
Figure 3~4A
AI summary
A light emitting device module (100) includes a substrate (10) including a plurality of light emitting areas (11), a light emitting device (20) disposed in each light emitting area (11) to emit a light, windows (40) disposed on the substrate (10), each of the windows (10) covering each light emitting area (11), and having an asymmetrical shape with respect to one direction, and a holder (30) to hold the windows (40), the holder (30) being provided with openings (39), each of which is defined therethrough in an asymmetrical shape corresponding to the window (40) in a corresponding light emitting area (11) among the light emitting areas (11). Each of the windows (40) is individually provided in a corresponding opening (39) among the openings (39) and detachably coupled to the holder (30).