LED Lens Screw Coupling for Thermal and Optical Stability

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Solution Overview

Problem

Conventional light bulbs and fluorescent lights have short lifespans and decreasing luminance over time, necessitating frequent replacements, whereas LED lighting devices offer superior control, efficiency, and durability but require innovative stabilization and orientation solutions.

Innovation Solution

A lighting device design featuring a body with a cavity and a screw-coupled lens for physical durability and light orientation, incorporating a power supply and heat radiator for efficient heat management and electrical stability, with a substrate and heat sink for enhanced performance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Duration of action of moving object

If conventional light bulbs or fluorescent lights are used, then they are simple in structure and easy to manufacture, but they have short lifespan and decreasing luminance over time

Engineering Contradiction:
ImprovelifespanVSAvoidstructure complexity
Core Design Contradiction:
Duration of action of moving objectVSDevice complexity

Solution Approach 1:

The lighting device is divided into separate functional modules: a body housing containing the power supply, a lens assembly with LED light source, and a heat dissipation system. This modular segmentation allows each component to be optimized independently for longevity while maintaining manufacturing simplicity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

A driver circuit is introduced as an intermediary component between the power supply and LED light source, providing intelligent control and protection functions that extend the lifespan of the LED module while managing the complexity through integrated circuit design.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If LED lighting modules are used to achieve long lifespan and high efficiency, then they provide superior control and efficiency, but they require complex stabilization and orientation solutions

Engineering Contradiction:
Improvephysical durabilityVSAvoidstabilization mechanism
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The lens assembly is merged with the body housing through a screw coupling mechanism that simultaneously provides mechanical attachment, positional stabilization, and optical alignment. This integration eliminates the need for separate stabilization components while maintaining LED module reliability.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The screw coupling structure serves multiple functions: mechanical fastening of the lens assembly, precise orientation control of the LED light source, and structural reinforcement of the entire lighting device. This multi-functionality reduces overall device complexity while enhancing physical durability.

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

3Stability of the object's composition

If the lens is directly coupled to the light source, then the structure is simple, but the light orientation and physical durability are compromised

Engineering Contradiction:
Improvelight orientationVSAvoidcoupling structure
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The coupling structure extends in the axial dimension between the lens and light source, creating a spaced arrangement that allows for independent positioning and orientation adjustment. This dimensional approach enables precise light orientation control while maintaining a relatively simple overall structure.

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

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 improved mechanical and optical stability, extended lifespan, and enhanced light emission efficiency by stabilizing the LED light source and optimizing heat dissipation, addressing the limitations of conventional lighting technologies.

Implementation Method 1

a lens coupled to a body by screw coupling to stabilize physical durability and light orientation

Methodology Applied
Scientific EffectScrew coupling: Screw

Implementation Method 2

incorporating a power supply and heat radiator for efficient heat management

Methodology Applied
Scientific EffectHeat dissipation: Heat Sink

Data Source

PatentUS8967836B2Light having a lens and body with a threaded connection and a groove and a protrusion connection therebetween
Publication Date: 2015.03.03 SUZHOU LEKIN SEMICON CO LTD
  • US8967836B2 patent drawing
  • US8967836B2 patent drawing
  • US8967836B2 patent drawing

AI summary

Disclosed is a lighting device including a body having an inside wall to provide a cavity, the inside wall being provided with a first screw, a light source disposed in the cavity, a power supply disposed at one side of the body to supply power to the light source, and a lens disposed on the light source, the lens being provided with a second screw coupled to the first screw. Disclosed is also a lighting device including a body having an inside wall to provide a cavity, the inside wall being provided with a first screw, a light source disposed in the cavity, a power supply disposed in the body to supply power to the light source, and a lens disposed on the light source, the lens being provided with a second screw coupled to the first screw so that the lens is spaced from the light source.