Globular Illuminant Device Omnidirectional Lighting

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Solution Overview

Problem

Conventional LED lighting devices have a narrow angular lighting range and high power consumption when multiple LEDs are used to achieve omnidirectional lighting, making them less energy-efficient and more expensive than traditional light sources.

Innovation Solution

A globular illuminant device comprising a hemispherical carrier, circuit layer, LED dies, enclosure resin, and hemispherical cover, where the LED dies are placed within a spherical transparent body to provide omnidirectional lighting, with optional phosphor layers and substrates to enhance light distribution and color conversion.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Illumination intensity

If multiple LEDs are assembled and arranged to centralize light, then the angular lighting range is improved, but the power consumption is increased

Engineering Contradiction:

Improveangular lighting rangeVSAvoidpower consumption

Core Design Contradiction:

Illumination intensityVSUse of energy by moving object

Solution Approach 1:

The patent employs a spherical transparent body instead of a flat or conventional structure to house the LED array. This spherical configuration allows light to be distributed omnidirectionally in all directions, achieving wide angular lighting range without requiring multiple separate LED modules. The curvature of the sphere enables uniform light distribution across the entire 360-degree field of view.

Inventive Principle:

Principle #14Spheroidality (Curvature)

Solution Approach 2:

The patent integrates multiple LED dies into a single unified structure within one spherical transparent body, combining their light-emitting functions into one integrated illuminant device. This merging approach maintains the omnidirectional lighting capability while reducing the total number of separate components and power requirements compared to using multiple discrete LED modules.

Inventive Principle:

Principle #5Merging (Combining)

2Illumination intensity

If multiple LEDs are assembled and arranged to centralize light, then the angular lighting range is improved, but the device cost is increased

Engineering Contradiction:

Improveangular lighting rangeVSAvoiddevice cost

Core Design Contradiction:

Illumination intensityVSEase of manufacture

Solution Approach 1:

The spherical transparent body serves as a single integrated housing that accommodates multiple LED dies, eliminating the need for complex assemblies of separate LED modules. This unified spherical structure simplifies manufacturing processes and reduces assembly complexity, thereby lowering production costs while maintaining omnidirectional lighting coverage.

Inventive Principle:

Principle #14Spheroidality (Curvature)

Solution Approach 2:

By combining multiple LED dies into a single integrated spherical device, the patent reduces the number of separate components that need to be manufactured, sourced, and assembled. This consolidation simplifies the supply chain and manufacturing process, reducing overall device cost while achieving the desired wide angular lighting range.

Inventive Principle:

Principle #5Merging (Combining)

3Measurement precision

If LEDs are used to provide short-distance and small area lighting, then the lighting precision is improved, but the lighting coverage area is limited

Engineering Contradiction:

Improvelighting precisionVSAvoidlighting coverage area

Core Design Contradiction:

Measurement precisionVSArea of stationary object

Solution Approach 1:

The spherical transparent body acts as an omnidirectional light distributor that expands the lighting coverage area in all directions from the central LED array. The sphere's curvature enables light to reach the maximum possible distance and coverage area while maintaining the precision and control characteristics of LED lighting, effectively resolving the trade-off between precision and coverage.

Inventive Principle:

Principle #14Spheroidality (Curvature)

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 enables efficient omnidirectional lighting with reduced power consumption and lower costs by utilizing a spherical design that maintains light intensity across a wider area, while also allowing for adjustable light distribution and color adjustment through phosphor layers.

Implementation Method 1

A light emitting diode (LED) is a kind of semiconductor device, which exploits the property of direct-bandgap semiconductor material to convert electric energy into light energy efficiently

Methodology Applied

Scientific EffectElectroluminescence: Electroluminescence

Implementation Method 2

the phosphor layer can adjust light color, enhancing the overall lighting effect

Methodology Applied

Scientific EffectPhosphorescence: Phosphorescence

Data Source

PatentUS9228726B2Globular illuminant device

Publication Date: 2016.01.05 LEDIAMOND OPTO

AI summary

A globular illuminant device includes a hemispherical carrier, a circuit layer, a plurality of LED dies, an enclosure resin, and a hemispherical cover. The hemispherical carrier includes a carrying surface, a first cambered surface, and a first protrusion including a first surface. The circuit layer is placed on the first surface and the carrying surface. The LED dies are electrically connected to the circuit layer. The enclosure resin covers the LED dies. The hemispherical cover includes a joining surface, a second cambered surface, and a recess formed on the joining surface and concave toward second cambered surface. The hemispherical cover is assembled with the hemispherical carrier such that the joining surface is in contacted with the carrying surface while the LED dies and the enclosure resin are disposed within the recess.