Printed Facets for Lenticular Image Manufacturing

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Solution Overview

Problem

Current methods for printing lenticular images are limited in their ability to efficiently create faceted surfaces with interlaced images that change appearance when viewed from different angles, often requiring complex processes and materials that are not adaptable to various print media or cost-effective for large runs.

Innovation Solution

A method and device for printing simplex lenticular images using a faceted surface with interlaced strips of complementary images, where the lenticular lenses are formed over the ridges between the facets, allowing for adaptable printing on diverse media and achieving the desired optical effects through iterative layering of transparent or translucent materials with specific optical properties.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If complex processes and materials are used to print lenticular images, then the quality of lenticular effect is improved, but the manufacturing cost and process complexity increase

Engineering Contradiction:
Improvelenticular effect qualityVSAvoidprocess complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The printing process is segmented into distinct operational phases: forming the faceted surface structure, applying interlaced image strips to specific facets, and curing the transparent/translucent material. This segmentation allows each phase to be optimized independently, reducing overall process complexity while maintaining lenticular effect quality.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The faceted surface structure is pre-formed on the print media before the lenticular image strips are applied. This preliminary action creates a ready-made optical framework that guides the subsequent image application process, simplifying the overall manufacturing sequence and reducing the need for complex post-processing steps.

Inventive Principle:
Principle #10Preliminary action

2Reliability

If traditional lenticular printing methods are used, then optical effects are achieved, but adaptability to various print media is limited

Engineering Contradiction:
Improveoptical effectVSAvoidmedia adaptability
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The printing system is designed with universal applicability across multiple print media types including paper, cardstock, and durable materials. The faceted surface formation process and material application method are configured to accommodate varying substrate properties, allowing the same system to reliably produce lenticular effects on diverse media without requiring media-specific process adjustments.

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

Solution Approach 2:

The system accommodates different print media by adjusting key process parameters such as material viscosity, curing conditions, and facet geometry. These parameter changes enable the same fundamental process to adapt to the specific properties of each media type, maintaining optical effect reliability across paper, cardstock, and durable materials with different surface characteristics and flexibility.

Inventive Principle:
Principle #35Parameter changes

3Manufacturing precision

If conventional printing processes are used for lenticular images, then image fidelity is maintained, but cost-effectiveness for large runs deteriorates

Engineering Contradiction:
Improveimage fidelityVSAvoidcost-effectiveness
Core Design Contradiction:
Manufacturing precisionVSProductivity

Solution Approach 1:

The system employs self-aligning mechanisms where the interlaced image strips are designed to automatically register with the faceted surface structure during application. This self-service alignment eliminates the need for complex external alignment equipment and manual adjustment processes, reducing manufacturing costs while maintaining image fidelity across large production runs.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

Multiple operational functions are merged into a single integrated printing process: faceted surface formation, image strip application, and material curing occur in one continuous operation. This merging eliminates the need for separate processing steps and intermediate handling, improving productivity and cost-effectiveness for large production runs while preserving image fidelity through consistent process control.

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

Enables the creation of lenticular images that transition between component images when viewed from different angles, offering a cost-effective and versatile solution for printing on various media, including paper, cardstock, and durable materials, with the ability to produce visually appealing effects like movement or modulation.

Implementation Method 1

The lenses in such arrays can be cylindrical so as to magnify different aspects of an image at different angles

Methodology Applied
Scientific EffectRefraction: Refraction

Implementation Method 2

A layer of UV-curable polymer resin is formed between the sheet and the surface and cured to form a lenticular array above the stereoscopic image

Methodology Applied
Scientific EffectPhotopolymerisation: Photopolymerisation

Data Source

PatentEP3325277B1Printed facets
Publication Date: 2022.06.22 HP INDIGO BV
  • EP3325277B1 patent drawingFigure 1
  • EP3325277B1 patent drawingFigure 2
  • EP3325277B1 patent drawingFigure 3

AI summary

Examples described herein include methods and devices for a lenticular image product that includes a print media, a printed faceted surface disposed on the print media, an interlaced image printed on the printed faceted surface, and a printed lenticular lens printed on the printed interlaced image and the printed faceted surface. The lenticular lens can be disposed over the print media selectively.