LED Lighting Device With Segmented Reflection Element
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Solution Overview
Problem
Flexible lighting devices with LEDs suffer from light loss due to absorption by interposers and other housing elements, complicating production and reducing effectiveness, as filling reflective material around interposers is challenging without covering light-emitting faces.
Innovation Solution
A lighting device with reflective side walls and a strip-like reflection element featuring through holes to surround LEDs, reducing light absorption by interposers while maintaining flexibility and ease of production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If reflective material is filled around interposers to reduce light loss, then lighting effectiveness is improved, but production complexity increases and manufacturing precision is compromised
Solution Approach 1:
The reflective housing is divided into multiple segments: reflective side walls forming a cavity, and a separate reflection element (strip with through holes) that is inserted into the cavity. This segmentation allows each component to be manufactured independently with standard processes, then assembled together, eliminating the difficulty of filling reflective material around interposers while maintaining high lighting effectiveness.
2Loss of energy
If reflective material is filled around interposers to reduce light loss, then lighting effectiveness is improved, but manufacturing precision deteriorates due to incomplete covering or covering light-emitting faces
Solution Approach 1:
The reflection element acts as an intermediary component between the reflective side walls and the interposers. It is specifically designed with through holes that accommodate the interposers, allowing it to surround them reflectively without direct contact or filling operations. This intermediary structure ensures precise positioning and complete coverage of interposers while preventing any material from covering the light-emitting faces of LEDs.
3Adaptability or versatility
If housing is made flexible using silicone to allow bending, then adaptability is improved, but light absorption by housing material increases
Solution Approach 1:
The housing employs different material properties in different locations: flexible silicone is used for the overall housing structure and connection elements to provide adaptability, while highly reflective materials (such as white silicone with reflective particles or metallic coatings) are used for the side walls and reflection element that are in the path of light. This local differentiation allows the housing to be flexible where needed while minimizing light absorption in optical paths.
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
Enhances lighting effectiveness by minimizing light loss through absorption, while maintaining a simple manufacturing process and flexibility in device shape.
Implementation Method 1
a reflection element that covers a side of the interposers facing the opening, wherein the reflection element surrounds the LEDs on the side faces
Implementation Method 2
reflective side walls extending in the longitudinal direction
Data Source
AI summary
A lighting device, wherein the effectivity is increased and allows maintaining a simple manufacturing process, comprises: a housing having a longitudinal direction, the housing comprising: reflective side walls extending in the longitudinal direction, a first cavity disposed between the reflective side walls, and an opening of the first cavity for the passage of light from the first cavity; LEDs, each having a light-emitting face and side faces, wherein the LEDs are arranged on interposers for providing electrical connection of the LEDs, wherein the LEDs are arranged in the first cavity such that the LEDs are at least partially arranged along the longitudinal direction of the housing; and a reflection element that covers a side of the interposers facing the opening, wherein the reflection element surrounds the LEDs on the side faces, and is configured as strip comprising through holes in which the LEDs are arranged.