Helmet With Embedded Light Source Using Nesting And Local Quality

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Solution Overview

Problem

Conventional luminous helmets with exposed light sources suffer from aesthetic issues and vulnerability to external impacts, as the light sources are easily damaged and detract from the helmet's appearance.

Innovation Solution

A method for manufacturing a helmet with hidden light sources involves a transparent base film, a screen printing plate with meshes, and a lightproof ink layer, where light sources are embedded within a light transmitting layer, allowing light to exit while remaining concealed, using thermoforming and injection molding techniques to create a helmet housing with a lightproof and light transmitting portion.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the light source is set on the surface or in a groove of the helmet, then the helmet can emit light for decoration and warning, but the exposed light source may be easily damaged by external impact and the appearance is compromised

Engineering Contradiction:
Improveprotection of light sourceVSAvoidcomplexity of helmet structure
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The light source is embedded within a cavity formed in the helmet shell, nesting the light-emitting component inside the protective structure of the helmet rather than exposing it on the surface. This nesting approach protects the light source from external impacts while maintaining the helmet's overall structure.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

A transparent or translucent cover layer is applied over the cavity containing the light source. This thin film allows light to pass through for visibility and decoration purposes while providing an additional protective barrier that prevents direct exposure and damage to the light source.

Inventive Principle:
Principle #30Flexible shells and thin films

2Shape

If the light source is hidden within the helmet, then the appearance is improved and the light source is protected, but the light must still be visible for its function

Engineering Contradiction:
Improveaesthetic appearance of helmetVSAvoidvisibility of light
Core Design Contradiction:
ShapeVSIllumination intensity

Solution Approach 1:

The helmet shell incorporates a transparent or translucent portion at the location of the embedded light source, creating a local difference in optical properties. This allows light to pass through the specific area where the light source is located while the rest of the helmet maintains its normal opaque appearance, thus achieving both aesthetic improvement and light visibility.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The cover layer or transparent portion of the helmet shell is designed with specific optical properties that allow light transmission. The material may have different transparency levels, colors, or optical effects that enable the hidden light source to be visible while maintaining an aesthetically pleasing appearance for the overall helmet structure.

Inventive Principle:
Principle #32Color changes

Data Source

PatentEP3342300B1Helmet with hidden light source and method for manufacturing same
Publication Date: 2019.11.13 SHENZHEN QIANHAI LIVALL IOT TECH
  • EP3342300B1 patent drawingFigure 1
  • EP3342300B1 patent drawingFigure 2
  • EP3342300B1 patent drawingFigure 3

AI summary

A method for manufacturing a helmet with hidden light source includes: providing a transparent base film (12) and a screen printing plate (13), wherein the base film comprises a first portion (121) and a second portion (122), and the screen printing plate covers and corresponds to the first portion; printing a lightproof ink layer (14) on the second portion and the screen printing plate; removing the screen printing plate; coating a light transmitting ink layer (15) on the lightproof ink layer; attaching at least one light source (60) on the light transmitting ink layer corresponding to the first portion; and forming a helmet base (50) to cover the at least one light source.