Polymeric Light Fixture Joint with Notched Edge for Seam Reduction
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Solution Overview
Problem
Polymer-based lighting fixtures often exhibit unsightly seams and shadows due to the connection of panels, which detract from their aesthetic appeal and visibility of support hardware.
Innovation Solution
A low-profile joint configuration that forms a straight butt seam at the connection interface, transitioning into a rounded or curved tucked seam, reducing the visibility of the seam from specific vantage points and minimizing shadowing effects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If panels are connected to form modular lighting assemblies, then manufacturing flexibility and assembly ease are improved, but seams and shadows become visible at connection points
Solution Approach 1:
The patent introduces a multi-dimensional seam configuration with butt seams at the front and tucked seams at the rear, creating depth variation that hides seams from typical viewing angles. The seam is positioned in multiple spatial dimensions to be obscured by the panel geometry itself, transforming a two-dimensional visibility problem into a three-dimensional solution.
Solution Approach 2:
The patent employs asymmetric seam placement where the seam is tucked behind the panel edge on one side while maintaining a butt joint appearance from the front. This asymmetric configuration ensures that the seam is hidden from the primary viewing direction while still providing structural connection, breaking the symmetry that would otherwise make seams equally visible from all angles.
2Strength
If connective hardware is used to join panels, then structural stability is improved, but aesthetic appeal deteriorates due to visible hardware
Solution Approach 1:
The patent extracts the connective hardware from the visible front surface and relocates it to the rear tucked seam area. Fasteners and connection elements are positioned in the recessed portion of the seam that is hidden from view, while the front maintains a clean butt joint appearance. This separation of structural function from aesthetic presentation resolves the contradiction between strength and appearance.
Solution Approach 2:
The patent introduces the tucked seam configuration as an intermediary element that mediates between the structural connection requirement and the aesthetic appearance requirement. The seam acts as a hidden mediator that allows hardware to be present structurally while remaining invisible aesthetically, bridging the gap between functional and visual requirements.
3Stability of the object's composition
If panels are joined at edges, then structural integrity is improved, but shadowing and dark spots appear at connection points
Solution Approach 1:
The patent positions the seam in a recessed dimension behind the panel front surface, creating a shadow-free front appearance. By moving the connection point to a different spatial dimension (the rear tucked position), the structure maintains integrity while eliminating the shadowing effect that occurs when seams are positioned at the forward edge.
Solution Approach 2:
The patent employs curved or rounded panel edges that transition into the tucked seam configuration, creating smooth visual transitions that eliminate sharp shadows. The curved geometry diffuses light and shadow patterns at the connection point, preventing the formation of distinct dark spots while maintaining structural continuity.
Data Source
AI summary
Low-profile light fixture joints reduce the appearance of a seam between joined ends of one or more polymeric panels at a connection interface. The joint is formed between a first end of a polymeric panel and a second end of the same or a separate polymeric panel. Each end has an upper edge portion, a lower edge portion opposite the upper edge portion, a flange extending between the upper edge portion and the lower edge portion, and a notch disposed between the flange and one or more of the lower edge portion or the upper edge portion. The notch enables the upper and/or lower edge portions to present straight edges at the connection interface, the joined straight edges forming a butt seam at the connection interface, while the flanges present rounded edges at the connection interface, the joined rounded edges forming a tucked seam at the connection interface.