LED Bulb Light Guide Body Glyphs and Wavy Surface

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Solution Overview

Problem

Current LED bulbs with light guide bodies face issues of inadequate light distribution and decorative effect, high production costs, and complex manufacturing processes, limiting their ability to meet both lighting and aesthetic requirements.

Innovation Solution

An LED bulb design featuring a hollow cylindrical light guide body with engraved glyphs, a wavy top surface, and a heat dissipation mechanism, which enhances light distribution, provides a decorative effect, and simplifies the manufacturing process by reducing costs and extending bulb lifespan.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Illumination intensity

If a light guide body is made of optical materials such as acrylic polyester, polycarbonate, epoxy resin, and glass, then the light guide effect is improved, but the lighting requirement cannot be met and only decorative use is possible

Engineering Contradiction:
Improvelight guide effectVSAvoidlighting requirement fulfillment
Core Design Contradiction:
Illumination intensityVSEase of manufacture

Solution Approach 1:

The light guide body incorporates light guide plates with specific optical properties at strategic locations to enhance light distribution while maintaining the decorative aesthetic. This localized application of optical enhancement materials allows the bulb to meet lighting requirements without compromising the overall decorative design or requiring complete material replacement.

Inventive Principle:
Principle #3Local quality

2Shape

If incandescent bulbs are used to achieve decorative effect, then the decorative effect is improved, but the service life is short and production cost is high

Engineering Contradiction:
Improvedecorative effectVSAvoidservice life
Core Design Contradiction:
ShapeVSDuration of action of stationary object

Solution Approach 1:

The invention introduces a light guide body as an intermediary component between the LED light source and the external environment. This light guide body, with its decorative surface features and optical properties, replicates the aesthetic qualities traditionally associated with incandescent bulbs while the LED technology provides the long service life and energy efficiency.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Illumination intensity

If ordinary LED bulbs are used to meet lighting requirement, then the lighting requirement is met, but the decorative effect and production efficiency are reduced

Engineering Contradiction:
Improvelighting requirementVSAvoidproduction efficiency
Core Design Contradiction:
Illumination intensityVSProductivity

Solution Approach 1:

The invention merges the lighting function and decorative function into a single integrated LED bulb design. The light guide body is molded as an integral part of the bulb structure, combining light transmission capabilities with decorative surface features. This integration eliminates the need for separate decorative components and simplifies the manufacturing process, thereby improving production efficiency while maintaining both lighting performance and aesthetic appeal.

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 design achieves improved light distribution and decorative effects, ensuring even and soft lighting while reducing production costs and extending bulb lifespan compared to incandescent and ordinary LED bulbs.

Implementation Method 1

A bottom of the light guide body is in contact with a luminous body, and depending on total internal reflection, light is transmitted in the light guide body

Methodology Applied
Scientific EffectTotal internal reflection: Total Internal Reflection

Implementation Method 2

a top of the light guide body is in a wavy shape and may have a light gathering effect, thereby resolving a problem of glowing at the top of the light guide body, and making the entire bulb body glow evenly and softly

Methodology Applied
Scientific EffectLight scattering: Scattering

Data Source

PatentEP3444521B1LED bulb having light guide body
Publication Date: 2021.05.05 CHANGZHOU FUXING ELECTRICAL APPLICANCE CO LTD
  • EP3444521B1 patent drawingFigure 1
  • EP3444521B1 patent drawingFigure 2
  • EP3444521B1 patent drawingFigure 3

AI summary

The invention discloses an LED bulb having a light guide body, including a bulb holder (10), a bulb shell (6), a luminous body (3), a power source (1), a connector (7), and a light guide body (4). The connector (7) is fixedly connected to the bulb holder (10), the bulb shell (6) is fixed on the connector (7), the luminous body (3) and the power source (1) are located in the bulb holder (10), the luminous body (3) and the power source (1) are connected by using a wire, a lower end of the light guide body (4) is plugged with the connector (7), and a bottom of the light guide body (4) is in contact with the luminous body (3), where the light guide body (4) is engraved with glyphs (5). The LED bulb having a light guide body of the invention can both provide light and have a decorative effect.