Reflective Fishing Lure Structure for Stronger Multi-Angle Light Return

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Solution Overview

Problem

Existing fishing lures fail to effectively attract fish eaters due to weak or diffused light reflection, which reduces their attractiveness and fish-catching efficiency.

Innovation Solution

Incorporating high refractive index glass beads and specular beads into the lure's design to enhance light reflection by reducing attenuation and directing light in multiple directions, utilizing their refractive properties to increase luminance and visibility.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Illumination intensity

If a small piece of tool with a reflector is used, then the structure is simple, but the reflected light is weak and does not reach the fish eater effectively

Engineering Contradiction:
Improvereflected light intensityVSAvoidstructure complexity
Core Design Contradiction:
Illumination intensityVSDevice complexity

Solution Approach 1:

The lure body is divided into multiple sections with different reflective elements positioned at specific locations (front, middle, rear portions) to create comprehensive light reflection coverage that reaches fish eaters from various angles and distances

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Multiple types of reflective materials (reflectors, high refractive index glass beads, specular beads) are combined within the lure body to create synergistic light reflection effects that enhance overall visibility and attraction

Inventive Principle:
Principle #40Composite materials

2Illumination intensity

If a diffusely reflecting layer is used, then the light is scattered in many directions, but the reflected light is not strong and the lure is hard for fish eaters to notice

Engineering Contradiction:
Improvereflected light luminanceVSAvoidfish eater detection ease
Core Design Contradiction:
Illumination intensityVSEase of operation

Solution Approach 1:

Different regions of the lure have different reflective properties - some areas use diffuse reflection while others use specular reflection or high refractive index beads - to create localized light effects that collectively enhance overall visibility and attraction to fish eaters

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

Spherical high refractive index glass beads and specular beads are used to refract and reflect light in specific patterns that create bright, noticeable reflections visible to fish eaters, replacing flat diffuse reflecting surfaces

Inventive Principle:
Principle #14Spheroidality (Curvature)

3Illumination intensity

If multiple types of reflective elements are added to enhance light reflection, then the light reflection effectiveness improves, but the manufacturing complexity and cost increase

Engineering Contradiction:
Improvelight reflection effectivenessVSAvoidmanufacturing process simplicity
Core Design Contradiction:
Illumination intensityVSEase of manufacture

Solution Approach 1:

Multiple reflective elements (reflectors, glass beads, specular beads) are integrated into a single lure body structure, allowing them to work together as one unit during manufacturing and fishing, simplifying the overall manufacturing process while maintaining enhanced light reflection effectiveness

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 lure attracts fish eaters more reliably and strongly by reflecting light in a wider range, enhancing fish-catching effectiveness with an easy and cost-effective manufacturing process.

Implementation Method 1

having at least one high refractive index glass bead and/or at least one specular bead capable of reflecting external light

Methodology Applied
Scientific EffectLight reflection: Reflection

Implementation Method 2

utilizing their refractive properties to increase luminance and visibility

Methodology Applied
Scientific EffectRefraction: Refraction

Data Source

PatentEP4233540B1Fishing lure
Publication Date: 2025.12.17 DAIWA SEIKO CORPORATION
  • EP4233540B1 patent drawingFigure 1
  • EP4233540B1 patent drawingFigure 2
  • EP4233540B1 patent drawingFigure 3

AI summary

A fishing lure (1) according to an embodiment of the invention comprises a main body portion (2) having an interior portion (11) provided with a cavity. The cavity is partially or completely visible from outside. At least one high refractive index glass bead and/or at least one specular bead (4) capable of reflecting external light is disposed in an outer surface of the main body portion, in an inner surface of the main body portion, and/or inside the cavity. The external light is reflected by the at least one high refractive index glass bead and/or the at least one specular bead disposed in the outer surface, in the inner surface, and/or inside the cavity.