Downlight Auxiliary Ring Reduces LED Glare

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Solution Overview

Problem

Traditional downlight LED installations suffer from glare and lack of dimming control, forcing users to either turn them completely off or on, resulting in undesirable lighting conditions.

Innovation Solution

A downlight auxiliary ring device with one or more light sources positioned to emit light toward a reflective surface, reducing glare and allowing for controlled dimming and integration with existing lighting systems.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by moving object

If LED lighting is installed in a downlight configuration, then power requirements are reduced and lifespan is extended, but glare is caused and aesthetic quality deteriorates

Engineering Contradiction:
Improvepower requirementsVSAvoidglare
Core Design Contradiction:
Use of energy by moving objectVSObject-affected harmful factors

Solution Approach 1:

The patent introduces a reflective surface positioned above the LED light source to redirect light paths from a direct downward orientation to an indirect reflected path. This dimensional change in light trajectory eliminates glare while maintaining the energy efficiency benefits of LED downlighting.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

A reflective surface acts as an intermediary element between the LED light source and the illuminated space. This mediator redirects light in a controlled manner, transforming direct glare-causing illumination into soft, indirect lighting that maintains energy efficiency.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Device complexity

If traditional downlight LED installations are used, then device simplicity is maintained, but control flexibility is lost and dimming capability is reduced

Engineering Contradiction:
Improveinstallation simplicityVSAvoiddimming control
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The lighting system is segmented into separate controllable components: the main downlight LED and the auxiliary ring LED. This segmentation allows independent control of each light source, enabling flexible dimming combinations while maintaining the simplicity of the physical installation structure.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent implements dynamic control capabilities where the auxiliary ring LED can be independently adjusted in intensity and timing relative to the main downlight. This creates adaptable lighting scenarios (accent, ambient, dim-to-off) without complicating the physical installation.

Inventive Principle:
Principle #15Dynamics

3Illumination intensity

If LED lighting is turned completely on, then illumination intensity is maximized, but glare increases and aesthetic quality worsens

Engineering Contradiction:
ImprovebrightnessVSAvoidglare
Core Design Contradiction:
Illumination intensityVSObject-affected harmful factors

Solution Approach 1:

The auxiliary ring LED provides partial illumination that complements the main downlight. By activating only the auxiliary ring at certain intensity levels or timing sequences, the system achieves sufficient ambient lighting without the excessive brightness that causes glare from the main LED.

Inventive Principle:
Principle #16Partial or excessive action

Solution Approach 2:

Different regions of the lighting system serve different functions: the main downlight LED provides focused task illumination where high intensity is needed, while the auxiliary ring LED provides peripheral ambient lighting that reduces glare. This local differentiation of light quality and intensity resolves the contradiction between brightness and glare.

Inventive Principle:
Principle #3Local quality

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 reduced glare and adjustable lighting levels, enhancing user control and compatibility with existing systems, offering a more aesthetically pleasing and functional illumination experience.

Implementation Method 1

The one or more light sources are arranged to emit light toward a reflective surface such that the reflected light is directed downward. The reflected light is of reduced glare than if emitted directly downward.

Methodology Applied
Scientific EffectLight reflection: Reflection

Data Source

PatentUS9429285B2Downlight auxiliary ring
Publication Date: 2016.08.30 AVAGO TECHNOLOGIES INTERNATIONAL SALES PTE LTD
  • US9429285B2 patent drawing
  • US9429285B2 patent drawing
  • US9429285B2 patent drawing

AI summary

A downlight auxiliary ring device and method of control and use of same is disclosed. Specifically, the downlight auxiliary ring device, comprising light-emitting diodes, allows a dimmable and reduced-glare reflected downlight. It is also an aspect of the present disclosure to provide easy-to-implement and cost-effective methods of control and use of the downlight auxiliary ring device system.