Visor Snap-Fit Mechanism for Lighting Fixture Sky Glow Reduction
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Solution Overview
Problem
Conventional visors for lighting fixtures require fasteners and tools for installation, increasing costs and time, and do not effectively prevent sky glow due to upward directional light emission.
Innovation Solution
A visor design featuring a central panel and side panels with hemmed connecting portions and pivotable clips that snap fit onto the lighting fixture without tools, optimizing the angle and length to minimize sky glow and enhance light utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional fasteners (nut and bolt assembly) are used to attach the visor to the lighting fixture, then the visor can be securely fixed, but the installation cost and time increase
Solution Approach 1:
The patent removes the fastener components (nuts and bolts) from the assembly system entirely. The visor is designed with integrated connecting portions that directly engage with the lighting fixture body through snap-fit or friction-fit mechanisms, eliminating the need for separate fastening elements and their associated installation steps.
Solution Approach 2:
The connecting portions are integrated directly into the visor body structure, merging the fastening function with the visor itself. This integration allows the visor to be attached to the lighting fixture without requiring separate fastener components, thereby reducing installation complexity and time while maintaining secure fixation.
2Reliability
If fasteners and tools are used for visor installation, then secure attachment is achieved, but installation cost increases
Solution Approach 1:
The patent extracts the fastener components from the attachment system, replacing them with an integrated connecting portion design that engages directly with the lighting fixture. This elimination of separate fasteners reduces material costs, assembly complexity, and installation labor requirements.
Solution Approach 2:
The connecting portions are designed to self-align and self-secure with the lighting fixture body through geometric interlocking or friction-based mechanisms. The visor attaches itself without requiring external fasteners or specialized installation tools, thereby reducing overall system cost and simplifying the installation process.
3Object-affected harmful factors
If the visor is designed to block upward directional light effectively, then sky glow is prevented, but the design complexity increases
Solution Approach 1:
The visor employs specific geometric features at critical locations - the connecting portions with hemmed formations at the free operative ends - to achieve the desired light blocking function. By concentrating design complexity only where needed for sky glow prevention rather than throughout the entire visor structure, the overall design complexity is minimized while maintaining effectiveness.
Data Source
AI summary
A visor for a lighting fixture is snap fitted to the lighting fixture that effectively reduces sky glow. The visor (100) comprises a central panel (104) and a pair of side panels (106). The pair of side panels (106) is extended from the operative ends of central panel (104). Further at least one connecting portion (108) having a hemmed formation (110) are configured on the central panel (104) and pair of side panels (106), wherein at least one clip (112) is fitted into the hemmed formation (110) that facilitates mounting of the visor (100) on the lighting fixture (102).