Pivoting LED Sign Fixture with Reflective Flanges
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Solution Overview
Problem
Current LED lighting fixtures for internally-lit or back-lit signs are cumbersome, require significant maintenance, are expensive to manufacture, and produce bright spots due to the use of multiple LEDs, while also being complex and prone to failure.
Innovation Solution
A collapsible lighting fixture with pivotally attached arms and flanges to reflect light, incorporating LED drivers within a body segment, allowing for easy retrofitting of existing signs and providing low-voltage lighting without modifying their mechanical structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If multiple spaced LEDs are used to provide adequate illumination, then power consumption is reduced, but bright spots appear in the display sheet
Solution Approach 1:
A reflective member is introduced as an intermediary between the LED and the display sheet. This reflective member redirects and diffuses the light from the LED, preventing direct illumination of bright spots on the sheet while maintaining adequate overall illumination. The reflective member acts as a mediator that transforms the direct, concentrated LED light into a more distributed pattern.
2Illumination intensity
If current LED lighting fixtures are used, then illumination is provided, but the fixtures are cumbersome and complex to manufacture
Solution Approach 1:
The lighting fixture is divided into separate functional segments: a body segment housing the LED and power components, and a separate reflective member. This segmentation allows each component to be optimized independently and simplifies manufacturing. The reflective member can be a simple shaped piece rather than part of a complex integrated assembly.
Solution Approach 2:
The body segment is designed to accommodate different LED types and configurations while maintaining the same basic structure. The reflective member can serve multiple functions including light redirection, structural support, and heat dissipation. This multi-functionality reduces the number of separate components needed.
3Illumination intensity
If current LED lighting fixtures are used, then illumination is provided, but maintenance requirements increase
Solution Approach 1:
The LED and power components are extracted from a complex integrated fixture and placed into a simple body segment housing. This extraction simplifies the overall fixture structure, making it easier to access, diagnose, and replace components when maintenance is needed. The modular body segment can be removed and replaced as a unit.
4Illumination intensity
If current LED lighting fixtures are used, then illumination is provided, but manufacturing costs increase
Solution Approach 1:
By segmenting the fixture into a simple body segment and a separate reflective member, each component can be manufactured using simpler, less expensive processes. The body segment can be molded as a single piece, and the reflective member can be formed from sheet material, reducing tooling and assembly costs compared to complex integrated fixtures.
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 efficient, low-maintenance, and cost-effective LED lighting with uniform illumination, addressing the issues of complexity and brightness while enabling easy installation and adaptability to existing sign structures.
Implementation Method 1
The flanges may be configured to reflect light emitted from the one or more lighting components
Data Source
AI summary
One or more lighting devices are disclosed. The lighting devices may be designed for back-lit or internally-lit signs. The lighting devices have a body segment with one or more hollow portions and a first and second arm, each having flanges extending from the center portion of each arm. One or more lighting components are mounted on the center portion of the first and/or second arms. The first and second arms are pivotally attached to the body segment so the arms can be opened (perpendicular) or closed (parallel) with respect to the body segment.