Adjustable Recessed Downlight Fixture for Crowded Ceiling Spaces
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Solution Overview
Problem
Conventional recessed downlight fixtures lack the ability to adjust the light source relative to the fixture, leading to sub-optimal installation in crowded ceiling spaces and difficulty in transitioning from incandescent or fluorescent to LED lighting due to differences in illumination patterns and space constraints.
Innovation Solution
A recessed downlight fixture with a foldable ring and adjustable levers allows for three degrees of adjustment (rotation, tilt, and vertical positioning) of the luminaire housing, enabling it to accommodate various ceiling configurations and illumination patterns, whether in retrofit or new construction applications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional recessed downlight fixtures are installed in crowded ceiling spaces, then the fixtures can be mounted in existing openings, but the light source cannot be adjusted relative to the fixture, resulting in sub-optimal illumination
Solution Approach 1:
The patent implements dynamic adjustment capability by incorporating a tilt mechanism that allows the luminaire housing to rotate relative to the fixture housing. This enables the light source to be positioned at multiple angles (e.g., 0°, 15°, 30°) to optimize illumination patterns in crowded ceiling spaces, transforming a static fixture into an adjustable system without requiring complete structural redesign
2Use of energy by moving object
If retrofit applications replace incandescent or fluorescent fixtures with LED, then energy efficiency improves, but the different illumination patterns and space constraints make installation difficult
Solution Approach 1:
The patent creates a universal fixture design that can accommodate both retrofit and new construction applications. The adjustable tilt mechanism works with existing ceiling openings while also allowing optimization for LED illumination patterns. The fixture can adapt to different ceiling configurations (flat, vaulted, cathedral) and lighting requirements, making it a multi-functional solution that simplifies the transition from incandescent to LED lighting
3Adaptability or versatility
If the ceiling space is crowded with ventilation ducts, fire sprinkler systems, and conduits, then the fixture can be installed in existing openings, but the light source cannot be optimally positioned
Solution Approach 1:
The patent addresses crowded ceiling spaces by implementing a dynamic tilt mechanism that allows precise adjustment of the light source position. The luminaire housing can be rotated to specific angles (0°, 15°, 30°) to navigate around obstacles such as ventilation ducts, fire sprinkler systems, and conduits. This dynamic positioning capability enables optimal light placement even in constrained spaces without requiring precise manufacturing tolerances for the entire fixture assembly
Data Source
AI summary
A recessed downlight fixture and method for installation is provided. The recessed downlight fixture can be installed in a retrofit application, after a ceiling is installed, through a pre-existing opening in that ceiling. Alternatively, a recessed downlight fixture according to a second embodiment can be installed before a ceiling is present. In either embodiment, the light source coupled to, for example, a heat sink, can be universally moved in three degrees of movement, rotationally, along a tilt axis, or further within the ceiling to increase or decrease the recess. All such universal adjustments can take place through and below the ceiling opening during or after installation.