Flexible Wire LED String Lights with Convex Lens Optical Imaging

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Solution Overview

Problem

Existing LED string lights are bulky, difficult to store and transport, and lack dynamic light and shadow effects, with SMD LED versions being too rigid to conform to objects or spaces effectively.

Innovation Solution

Flexible wire LED string lights with SMD LEDs connected to conducting wires, wrapped in light-transmitting colloid with convex lenses, and a control chip for luminance and flicker control, allowing for compact design and dynamic light patterns.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If direct insertion mode is adopted for LED slides, then the structure is simple, but the volume becomes large and difficult to store and transport

Engineering Contradiction:
Improvestructure simplicityVSAvoidstorage volume
Core Design Contradiction:
Device complexityVSVolume of moving object

Solution Approach 1:

The patent uses a flexible wire structure with SMD LEDs mounted directly on the wire conductors, eliminating the need for rigid LED slide components. This flexible wire design reduces the overall volume significantly while maintaining structural simplicity, making the string lights compact for storage and transport yet easy to install.

Inventive Principle:
Principle #30Flexible shells and thin films

2Reliability

If SMD LEDs are placed in a flexible tube, then the structure is protected, but the lights become too rigid to press closely according to the outline

Engineering Contradiction:
Improvestructural protectionVSAvoidflexibility to conform to outlines
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent eliminates the rigid flexible tube entirely, using only a thin flexible wire structure with SMD LEDs mounted on the conductors. This design provides sufficient flexibility to conform closely to any outline or surface while the SMD LED encapsulation provides the necessary structural protection and reliability.

Inventive Principle:
Principle #30Flexible shells and thin films

Solution Approach 2:

The patent extracts and removes the flexible tube component from the design, keeping only the essential flexible wire structure with mounted SMD LEDs. This extraction eliminates the rigidity problem while retaining the protective function through the SMD LED encapsulation alone.

Inventive Principle:
Principle #2Taking out (Extraction)

3Illumination intensity

If traditional LED string lights are used, then the illumination function is achieved, but the light and shadow effect is static and easy to become weary

Engineering Contradiction:
Improveillumination functionVSAvoiddynamic light and shadow effect
Core Design Contradiction:
Illumination intensityVSAdaptability or versatility

Solution Approach 1:

The patent incorporates a control chip that enables dynamic control of the SMD LEDs, allowing for variable luminance, flicker frequency adjustment, and multiple lighting modes including dynamic light and shadow effects. This transforms the static illumination into a dynamic, engaging display that prevents viewer fatigue.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The control chip provides multiple lighting modes and effects (dynamic light and shadow, various flicker patterns, adjustable luminance) within a single system, making the LED string lights versatile for different decorative scenarios while maintaining the basic illumination function.

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

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 simplifies the structure, reduces volume, and enhances light and shadow effects with dynamic color and flicker capabilities, making the lights more versatile and aesthetically appealing while being easier to handle and store.

Implementation Method 1

the light-transmitting colloid is a single-sided convex lens, which comprises a film disposed thereon and a second single-sided convex lens disposed on the film

Methodology Applied
Scientific EffectRefraction: Refraction

Implementation Method 2

a single-sided convex lens, which comprises a film disposed thereon and a second single-sided convex lens disposed on the film

Methodology Applied
Scientific EffectLens focusing: Lens

Implementation Method 3

a surface-mount device (SMD) LED being located between the first and second conducting wires; the SMD LED having a positive terminal being welded to the light welding position of the first conducting wire

Methodology Applied
Scientific EffectLight-emitting diode effect: Light Emitting Diode

Data Source

PatentUS10281094B2Flexible wire LED string lights for festivals, production method thereof, and apparatus made therefrom
Publication Date: 2019.05.07 DONGGUAN HAOTA OPTOELECTRONICS TECH CO LTD
  • US10281094B2 patent drawing
  • US10281094B2 patent drawing
  • US10281094B2 patent drawing

AI summary

A flexible wire LED string lights for festivals, comprising: LED luminous flexible wire string lights, a control chip and a power supply; the LED luminous flexible wire string lights including a first conducting wire and a second conducting wire disposed axially in parallel, light welding positions provided on the corresponding position on the first and second conducting wires, a SMD LED being located between the first and second conducting wires; the light welding positions of the SMD LED, first conducting wire, and second conducting wire being wrapped by light-transmitting colloid; the flexible wire LED string lights utilizing an optical imaging structure to project the pattern of the film using an optical lens imaging principle and to illuminate to the outside through the second one-sided convex lens.