Recessed Light Fixture With Patterned Reflector
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Solution Overview
Problem
Existing recessed lighting systems face inefficiencies in indirect lighting, as they often absorb light due to reflective surfaces, making them uneconomical and unsuitable for highlighting individual objects, while decorative patterns intended to enhance aesthetics can further reduce efficiency.
Innovation Solution
A recessed light fixture design featuring a trim component, a dome-shaped reflector with a patterned reflective surface, and an annular ring of LEDs that emit light towards the reflector, redirecting it to provide uniform indirect lighting without glare, while also highlighting decorative patterns without reducing lighting output or efficacy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If indirect lighting is used to illuminate large areas, then glare is reduced and uniform luminance is achieved, but lighting efficiency decreases due to light absorption by reflective surfaces
Solution Approach 1:
The reflector surface is divided into different zones with distinct properties: a first reflective surface with high reflectivity for efficient light redirection, and a second surface with decorative patterns. This local differentiation allows the functional surface to maintain lighting efficiency while the decorative surface provides aesthetic value without compromising the primary lighting performance.
2Shape
If decorative patterns are added to enhance architecture, then aesthetic value is improved, but lighting efficiency further deteriorates
Solution Approach 1:
The reflector is segmented into two distinct surfaces: a first reflective surface optimized for light redirection and a second surface featuring decorative patterns. This segmentation allows each surface to fulfill its specific function independently, preventing the decorative elements from interfering with the lighting efficiency of the reflective surface.
Solution Approach 2:
Different regions of the reflector are assigned different qualities: the first reflective surface has high reflectivity for efficient light redirection, while the second surface incorporates decorative patterns for aesthetic enhancement. This local quality differentiation resolves the contradiction between aesthetics and efficiency.
3Productivity
If direct lighting is used to illuminate specific objects, then lighting efficiency is improved, but glare and shadows are created
Solution Approach 1:
The patterned reflector acts as an intermediary between the LED light source and the illuminated space. It receives direct light from the LEDs and redistributes it through its patterned surface, transforming concentrated direct light into diffuse indirect lighting that eliminates glare and shadows while maintaining efficiency.
4Illumination intensity
If indirect lighting is used for large area illumination, then uniform luminance is achieved, but the system becomes uneconomical
Solution Approach 1:
The reflector surface is differentiated into a high-efficiency reflective zone and a decorative zone, allowing the functional reflective surface to maximize light redirection efficiency while the decorative surface provides aesthetic value. This local quality optimization maintains energy efficiency while achieving uniform luminance distribution.
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 efficiently delivers aesthetically pleasing indirect lighting that uniformly illuminates areas without glare, effectively highlighting decorative elements while maintaining high lighting output and efficacy.
Implementation Method 1
The LEDs are configured to emit light toward the reflector so that the reflector redirects the light to deliver the indirect light to the area
Data Source
AI summary
A recessed light fixture configured to deliver indirect light to an area. The recessed light fixture includes a trim component, a reflector coupled to the trim component, and an annular ring including a plurality of light-emitting diodes (LEDs). The trim component has an outer wall and an inner wall spaced radially inward of the outer wall, and defines an annular recess between the outer and inner walls. The reflector includes a patterned reflective surface. The annular ring is arranged within the annular recess of the trim component. The LEDs are configured to emit light toward the reflector so that the reflector redirects the light to deliver the indirect light to the area.