Indoor Illuminator with Adjustable LED Strips for Uniform Lighting

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Solution Overview

Problem

Conventional indoor lighting devices with matrix arrangements of light emitting diodes struggle to provide uniform illumination in complex spaces like office buildings or factories, leading to either increased luminous flux that can harm human vision or dark ripples, and redundant illumination that wastes light.

Innovation Solution

An indoor illuminator with a casing, adjustable portions, and illuminating strips featuring light emitting diodes that can adjust their emitting angles by pivoting or bending, allowing for a reflective top plate to optimize lighting field distribution, thereby providing a uniform and adaptable illumination.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Illumination intensity

If the projecting angle of conventional illuminating units is decreased and projected area is reduced, then quantitative luminous flux per unit area is increased, but human visual organs are easily injured

Engineering Contradiction:
Improvequantitative luminous fluxVSAvoidhuman visual perception injury
Core Design Contradiction:
Illumination intensityVSObject-affected harmful factors

Solution Approach 1:

The patent applies dynamics by making the illuminating unit's projection angle adjustable through a rotating mechanism. The illuminating strip can rotate relative to the casing, allowing dynamic adjustment between concentrated and dispersed lighting modes. This resolves the contradiction by enabling the system to adapt luminous flux distribution to different operational requirements, preventing visual injury when high intensity is not needed.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent changes the parameter of projection angle from fixed to variable. By providing an adjustable illuminating unit where the illuminating strip's angle relative to the casing can be modified, the system can optimize luminous flux distribution. This parameter change allows avoiding excessive concentration of light that would harm human vision while maintaining the ability to provide sufficient illumination when required.

Inventive Principle:
Principle #35Parameter changes

2Object-affected harmful factors

If the projecting angle of conventional illuminating units is increased and projected area is increased, then dark ripples are formed between adjacent projected areas, but human visual perception comfort is improved

Engineering Contradiction:
Improvevisual perception comfortVSAvoiduniformity of lighting field
Core Design Contradiction:
Object-affected harmful factorsVSIllumination intensity

Solution Approach 1:

The adjustable rotation mechanism enables dynamic optimization of the projection angle to eliminate dark ripples. By adjusting the angle, the illuminating strips can be positioned to ensure overlapping coverage between adjacent units, dynamically eliminating the dark ripple problem while maintaining visual comfort.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent creates a multi-functional illuminating unit that can serve different lighting needs through angle adjustment. The same unit can provide either wide coverage to eliminate dark ripples or concentrated light for specific tasks, making the system universally applicable to various lighting scenarios without sacrificing uniformity or comfort.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Illumination intensity

If more conventional illuminating units are used to solve dark ripples, then illumination uniformity is improved, but redundant illumination is projected on walls and energy is wasted

Engineering Contradiction:
Improveuniformity of lighting fieldVSAvoidredundant illumination waste
Core Design Contradiction:
Illumination intensityVSLoss of energy

Solution Approach 1:

The patent segments the illumination function into multiple adjustable illuminating strips within a single unit rather than using more fixed units. Each strip can be independently angled to direct light precisely where needed, eliminating the need for additional units and preventing redundant illumination on walls while maintaining uniformity through coordinated adjustment of the strips.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The dynamic adjustability of each illuminating strip's angle allows precise control over light direction. This enables the system to achieve uniform illumination coverage without projecting redundant light onto walls, as each strip can be oriented to illuminate only the required area, thereby reducing energy waste.

Inventive Principle:
Principle #15Dynamics

4Area of stationary object

If matrix arrangement of illuminator units is used, then coverage area is increased, but adaptability to complex indoor spaces is reduced

Engineering Contradiction:
Improvecoverage areaVSAvoidadaptability to complex spaces
Core Design Contradiction:
Area of stationary objectVSAdaptability or versatility

Solution Approach 1:

The patent introduces dynamic angle adjustment capability to each illuminating unit, transforming the fixed matrix arrangement into an adaptable system. The illuminating strips can be rotated to direct light into compartments and complex spatial configurations, maintaining wide coverage while significantly improving adaptability to various indoor space layouts.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent applies local quality by allowing each illuminating unit to be independently adjusted according to local spatial requirements. Different units or strips within units can be angled differently to suit specific compartment configurations, enabling the system to adapt to complex indoor spaces while maintaining overall coverage.

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 allows for adjustable lighting fields that can be tailored to specific environments, reducing glare, minimizing shadows, and optimizing light usage, ensuring comfortable and efficient illumination without the need for additional diffusion sheets.

Implementation Method 1

The top plate is provided for reflecting function

Methodology Applied
Scientific EffectReflection: Reflection

Data Source

PatentUS8628213B2Indoor illuminator for adjusting lighting field
Publication Date: 2014.01.14 NATIONAL CHUNG CHENG UNIV
  • US8628213B2 patent drawing
  • US8628213B2 patent drawing
  • US8628213B2 patent drawing

AI summary

An indoor illuminator for adjusting lighting field includes a casing, two adjusting portions and two illuminating strips. The casing has a top plate and two side plates. Each adjusting portion includes a bottom plate and a base plate. The base plate is mounted on the bottom plate. The two illuminating strips are respectively and correspondingly disposed on the two adjusting portions. Each illuminating strip includes an elongated loading plate and an elongated positioning plate. The loading plate has multiple light emitting diodes mounted on the loading plate. The positioning plate is respectively connected with the loading plate and the base plate of a corresponding adjusting portion to be enclosed as a triangular tube. The loading plate is pivotable relative to the base plate such that a projecting angle of the loading plate is adjustable and the lighting field is adjustable.