Light Guide Assembly for Uniform LED Luminaire Illumination
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Solution Overview
Problem
LED lighting systems often lack uniform illumination across multiple sides and ends of luminaires, requiring additional LEDs to achieve consistent lighting, which can be inefficient and costly.
Innovation Solution
A light fixture design featuring a housing with LEDs on opposite sides and a light guide assembly at the ends that distributes light from these LEDs, using a light guide with an extraction pattern to project light uniformly across the fixture, ensuring consistent illumination without additional LEDs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If additional LEDs are installed on all sides of the luminaire to achieve uniform illumination, then the illumination uniformity is improved, but the device complexity and cost increase
Solution Approach 1:
A light guide assembly is introduced as an intermediary component between the LEDs on opposite sides and the ends of the luminaire. The light guide receives light from the LEDs and redistributes it to illuminate the ends, achieving uniform illumination without installing additional LEDs on all sides. This mediator transfers and transforms the light path to solve the illumination uniformity problem while avoiding increased device complexity
Solution Approach 2:
The light guide assembly serves multiple functions: it collects light from LEDs on opposite sides, transports the light through its structure, and distributes it to illuminate the ends of the luminaire. This multi-functional component replaces what would otherwise require separate LED installations on each side and end, reducing overall system complexity while maintaining illumination uniformity
2Illumination intensity
If additional LEDs are installed on all sides of the luminaire to achieve uniform illumination, then the illumination uniformity is improved, but the cost increases
Solution Approach 1:
The light guide acts as a cost-effective intermediary that redistributes light from existing LEDs. Instead of purchasing and installing additional LED components on all sides, the light guide assembly provides a more economical solution by optically transporting and redistributing light to achieve the same uniform illumination effect
Solution Approach 2:
The light guide combines multiple functions into a single component: light collection, light transport, and light distribution. This consolidation replaces what would require multiple separate LED installations, reducing the total quantity of components needed and thereby lowering the overall cost while maintaining illumination uniformity
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 provides uniform illumination across the luminaire, making the appearance of the ends equivalent to the sides, thus eliminating the need for extra LEDs and enhancing lighting efficiency.
Implementation Method 1
The light guide may receive the light from the one or more captured LEDs from the first plurality of LEDs and the one or more captured LEDs from the second plurality of LEDs and project the light through the light guide
Implementation Method 2
The extraction pattern may be a textured pattern utilized to extract the light from the captured LEDs as the light pass through the light guide
Data Source
AI summary
Aspects of this invention relate to a system that provides an illuminated feature for an LED luminaire that can be used with opposite linear runs of LEDs to light the edges or sides of a luminaire without requiring additional LEDs. The system may include a light guide assembly located along an end housing of a light fixture, the light guide assembly including a light guide with a light guide end located proximate to one or more captured LEDs from a first plurality of LEDs located along a first side housing of the light fixture, and another light guide end located proximate to one or more captured LEDs from a second plurality of LEDs located along a second side housing of the light fixture, wherein the light guide receives the light from the one or more captured LEDs from the first plurality of LEDs and the one or more captured LEDs from the second plurality of LEDs and projects the light through the light guide, wherein when covered by a lens, the light emitted from the light guide is equivalent in appearance to the light emitted from the first plurality of LEDs and the second plurality of LEDs.