Annular Segmented Reflector for Stage Lighting Efficiency
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Solution Overview
Problem
Conventional stage lighting luminaires suffer from low efficiency due to light losses within the fixture housing and limited reflector design options, which restrict the ability to concentrate light effectively over significant distances and adjust beam width without significant light attenuation.
Innovation Solution
A light reflector system composed of nested annular rings with adjustable reflective surfaces, allowing for the redirection of light into nearly parallel beams and varying beam width without central light loss, enabling more complete surrounding of the light source and improved illumination efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If conventional fixed reflector designs are used, then the luminaire structure is simple, but light efficiency is low due to light losses within the housing
Solution Approach 1:
The reflector is divided into multiple adjustable segments that can be independently positioned to optimize light reflection paths, reducing light losses within the housing while maintaining structural feasibility
Solution Approach 2:
The reflector segments are made adjustable rather than fixed, allowing dynamic optimization of light reflection angles to maximize light efficiency while adapting to different lighting requirements
2Illumination intensity
If parabolic reflectors are used to concentrate light, then beam concentration is improved, but beam width adjustment is limited
Solution Approach 1:
The parabolic reflector is segmented into adjustable sections that can be independently repositioned to control beam width while maintaining light concentration, enabling versatile beam patterns without sacrificing illumination intensity
Solution Approach 2:
The reflector segments can be dynamically adjusted to change beam width and distribution patterns, providing adaptability for different lighting scenarios while preserving the light-concentrating capability of the parabolic shape
3Area of stationary object
If light sources with broad distribution patterns are used, then lighting coverage is improved, but luminaire efficiency decreases due to light losses
Solution Approach 1:
Different segments of the reflector are optimized to handle different portions of the broad light distribution, with each segment tailored to reflect specific angular ranges efficiently, thereby maintaining wide coverage while minimizing light losses
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 system achieves 30% to 40% more illumination by redirecting luminous output and allows for greater control and efficiency in lighting, with the ability to adjust beam width and maintain high efficiency over distances up to 20 times the luminaire diameter.
Implementation Method 1
a reflector comprised of two or more nested annular segmented rings having a reflective surface and arranged in cone-shaped layers configured to reflect light from a light source
Data Source
AI summary
The present invention is directed to an apparatus for providing a light reflector, light fixture, light fixture retrofit apparatus, lamp reflector, lamp retrofit apparatus or luminaire reflector retrofit. According to an example embodiment of the disclosed invention, a light reflector is provided that includes annular segments nested as cone-shaped layers configured for reflecting light from a light source placed in proximity to the inner cone portion. The two or more nested cone-shaped annular segments include a reflective surface. The cone-shaped annular segments are configured such that the segment layer having the smallest aperture is located farthest from the light source.