Dual-Diffusion Light Source Structure for Soft Even Illumination

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Solution Overview

Problem

Existing light source products face issues with direct bright lighting, uneven brightness, inadequate heat dissipation, and complex assembly processes, which affect their suitability for dual lighting functions and aesthetic appearance.

Innovation Solution

A light source structure comprising an outer diffusion cover, transparent plastic shell, and colored inner diffusion cover, with a heat sink housing a main and backlight source assembly, where the backlight source emits light towards the inner diffusion cover to create soft lighting, and the heat sink ensures even heat dissipation, while a simplified electrical connection system is used.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a two-layer cover structure is set for a main light source with a separate backlight source, then dual lighting functions are achieved, but the assembly process becomes complex

Engineering Contradiction:
Improvedual lighting functionsVSAvoidassembly process
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent combines the main light source assembly and backlight source assembly into a single integrated light source structure. The main light source and backlight source are mounted on the same circuit board and housed within a unified structure, eliminating the need for separate assemblies and reducing assembly complexity while maintaining dual lighting functions.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The integrated light source structure serves multiple functions: it provides both main lighting and backlighting capabilities, acts as a unified heat dissipation system, and simplifies the overall assembly process. The single structure replaces what would otherwise require multiple separate components and assembly steps.

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

2Illumination intensity

If direct bright lighting is used, then illumination intensity is high, but the lighting becomes harsh and uneven

Engineering Contradiction:
ImprovebrightnessVSAvoidharsh lighting
Core Design Contradiction:
Illumination intensityVSObject-affected harmful factors

Solution Approach 1:

The patent introduces a diffusion plate as an intermediary element between the light source and the environment. This diffusion plate scatters the direct light from both the main light source and backlight source, transforming harsh direct lighting into soft, uniform ambient lighting while maintaining high illumination intensity.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Device complexity

If conventional heat dissipation methods are used, then heat management is simple, but heat dissipation effectiveness is insufficient

Engineering Contradiction:
Improveheat dissipation structureVSAvoidheat dissipation effectiveness
Core Design Contradiction:
Device complexityVSTemperature

Solution Approach 1:

The patent merges the heat dissipation function with the light source housing structure. The housing is designed with integrated heat dissipation features including ventilation openings and heat-conductive materials, combining structural support and thermal management into a single system that improves heat dissipation without adding separate complex heat sinks or cooling mechanisms.

Inventive Principle:
Principle #5Merging (Combining)

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 structure achieves dual lighting functions with even brightness and softness, improved heat dissipation, and streamlined assembly, enhancing the lighting experience and appearance of light sources.

Implementation Method 1

a heat sink is arranged inside the inner diffusion cover

Methodology Applied
Scientific EffectThermal conduction: Conduction (thermal)

Implementation Method 2

the heat sink ensures even heat dissipation

Methodology Applied
Scientific EffectConvection: Convection

Implementation Method 3

outer diffusion cover and colored inner diffusion cover... the backlight source emits light towards the inner diffusion cover to create soft lighting

Methodology Applied
Scientific EffectLight diffusion: Scattering

Data Source

PatentUS20260049705A1Light source structure
Publication Date: 2026.02.19 XIAMEN TOPSTAR LIGHTING
  • US20260049705A1 patent drawing
  • US20260049705A1 patent drawing
  • US20260049705A1 patent drawing

AI summary

A light source structure includes an outer diffusion cover, a transparent plastic shell, and a colored inner diffusion cover. The plastic shell is provided with a first opening, the plastic shell is sleeved outside the inner diffusion cover, the outer diffusion cover is arranged at the first opening in a covering manner, a heat sink is arranged inside the inner diffusion cover, a main light source assembly is arranged on one side face of the heat sink, and a backlight source assembly is arranged on the other side face of the heat sink, thus realizing dual functions of conventional lighting and soft atmosphere lighting.