Colored Contact Lens Packaging for Light Blocking and Visibility

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Solution Overview

Problem

Conventional contact lens packaging containers are colorless and transparent, lacking variety in appearance and unable to block specific types of light, limiting their application range.

Innovation Solution

A contact lens packaging container formed by a plastic material with a dispersed color powder material, achieving a light blocking rate of at least 20% across a wavelength range of 380 to 780 nanometers, allowing for various colors and light blocking capabilities.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If a colorless plastic material is used for the contact lens packaging container, then the container maintains good transparency and visibility, but the appearance is dull and lacks variety in color

Engineering Contradiction:

Improveappearance varietyVSAvoidlight blocking capability

Core Design Contradiction:

Ease of manufactureVSIllumination intensity

Solution Approach 1:

The patent applies composite materials by combining color powder material with plastic material to create a packaging container that simultaneously achieves color variety and light blocking capability. The color powder material is dispersed in the plastic material at specific concentrations (50-5000 ppm) to form a composite structure that provides both aesthetic variety and functional light protection for contact lenses.

Inventive Principle:

Principle #40Composite materials

2Object-affected harmful factors

If the color powder material concentration is increased to enhance light blocking rate, then the light blocking rate increases, but the transparency and visibility of container contents decreases

Engineering Contradiction:

Improvelight blocking rateVSAvoidcontent visibility

Core Design Contradiction:

Object-affected harmful factorsVSIllumination intensity

Solution Approach 1:

The patent applies parameter changes by precisely controlling the concentration of color powder material within specific ranges (50-5000 ppm, preferably 100-2000 ppm) to optimize the balance between light blocking rate and content visibility. This parameter optimization ensures the container blocks harmful UV light while maintaining sufficient transparency for users to verify contact lens quality and storage conditions.

Inventive Principle:

Principle #35Parameter changes

3Object-affected harmful factors

If the container thickness is increased to improve light blocking rate, then the light blocking rate increases, but the container size and volume increase

Engineering Contradiction:

Improvelight blocking rateVSAvoidcontainer volume

Core Design Contradiction:

Object-affected harmful factorsVSVolume of moving object

Solution Approach 1:

The patent applies parameter changes by modifying the chemical composition parameters (color powder concentration) rather than physical dimensions (thickness) to achieve light blocking. This allows maintaining standard container thickness (0.5-1.5 mm) while achieving 20-90% light blocking rate through optimized color powder material concentration, thus avoiding increased container volume.

Inventive Principle:

Principle #35Parameter changes

4Object-affected harmful factors

If color powder material is added to the plastic material, then the container gains color variety and light blocking capability, but the manufacturing complexity increases

Engineering Contradiction:

Improvelight blocking capabilityVSAvoidmanufacturing process complexity

Core Design Contradiction:

Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The patent applies merging by integrating the color powder material directly into the plastic material during the injection molding process. The color powder and plastic materials are mixed and processed together in a single manufacturing step, eliminating the need for separate coloring or coating operations. This unified approach maintains manufacturing efficiency while achieving the desired light blocking and aesthetic properties.

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 container provides aesthetic variety while protecting light-sensitive active ingredients and maintaining visibility of contents, with a light blocking rate that enhances its applicability.

Implementation Method 1

The contact lens packaging container has a light blocking rate of not less than 20% under a wavelength measurement range between 380 nanometers and 780 nanometers

Methodology Applied

Scientific EffectLight absorption: Absorption (EM radiation)

Data Source

PatentUS12514350B2Contact lens packaging container and contact lens product

Publication Date: 2026.01.06 PEGAVISION CORP

AI summary

A contact lens packaging container and a contact lens product are provided. The contact lens packaging container is formed by a plastic material and a color powder material dispersed in the plastic material. The contact lens packaging container has a light blocking rate of not less than 20% under a wavelength measurement range between 380 nanometers and 780 nanometers through a spectrophotometer.