Perforated Reflecting Optical Structure for Preserving 3D Depth

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Solution Overview

Problem

Conventional optical structures that stereoscopically display 3D shapes lose depth information between bars, resulting in a representation that differs from the actual 3D shape.

Innovation Solution

An optical structure with a frame motif composed of perforated reflecting segments, each with a uniformly tilted reflecting mirror, varying tilt angles between segments, and openings, creating a stereoscopic effect by varying light reflection directions and intensities.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If a 3D shape is divided into sawtooth structures to stereoscopically display an image, then the stereoscopic display is achieved with great ease, but depth information between bars is lost

Engineering Contradiction:
Improveease of stereoscopic displayVSAvoiddepth information
Core Design Contradiction:
Ease of manufactureVSLoss of information

Solution Approach 1:

The optical structure is divided into multiple perforated reflecting segments, each containing reflecting mirrors with specific tilt angles. This segmentation allows different regions to reflect light in different directions, preserving depth information while maintaining ease of manufacture through modular design

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different regions of the optical structure are assigned different local properties by varying the tilt angles of reflecting mirrors in different perforated reflecting segments. This creates position-dependent reflection characteristics that encode depth information while keeping the overall manufacturing process simple

Inventive Principle:
Principle #3Local quality

2Reliability

If the actual 3D shape is deeper than the thickness of the display medium, then the original reflection information is retained, but the representation differs from the actual 3D shape

Engineering Contradiction:
Improvereflection information retentionVSAvoidshape accuracy
Core Design Contradiction:
ReliabilityVSManufacturing precision

Solution Approach 1:

The invention creates an optical copy of the 3D shape's reflection properties by using perforated reflecting segments with carefully controlled tilt angles. This copying approach preserves the essential reflection information while adapting it to the constraints of the display medium thickness, maintaining both reliability and shape accuracy

Inventive Principle:
Principle #26Copying

3Reliability

If multiple layers are laminated to achieve different reflection effects, then the stereoscopic effect is enhanced, but the device complexity increases

Engineering Contradiction:
Improvestereoscopic effectVSAvoidstructure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

Instead of using multiple static layers, the invention achieves enhanced stereoscopic effect through dynamic light reflection control by tilting mirrors in different perforated reflecting segments. This dynamic approach manipulates reflection angles to create depth perception without adding physical layers, thereby enhancing the stereoscopic effect while controlling structure complexity

Inventive Principle:
Principle #15Dynamics

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 structure maintains depth information and provides a realistic stereoscopic representation by continuously moving reflections, enhancing the perceived depth and designability of the image.

Implementation Method 1

each including one or more first reflecting mirrors having a reflective layer uniformly tilted relative to the structure formation surface, the tilt angle of the first reflecting mirror is different between adjacent perforated reflecting segments so as to gradually change over a plurality of adjacent perforated reflecting segments

Methodology Applied
Scientific EffectReflection: Reflection

Data Source

PatentEP3637172B1Optical structure
Publication Date: 2025.09.10 TOPPAN HOLDINGS INC
  • EP3637172B1 patent drawingFigure 1~2
  • EP3637172B1 patent drawingFigure 3(a)~3(b)
  • EP3637172B1 patent drawingFigure 4(a)~5A

AI summary

In an optical structure for displaying a stereoscopic frame image on a structure formation surface, a frame motif that displays a frame image in which reflection moves is formed on a structure formation surface, the frame motif is made up of a plurality of perforated reflecting segments, each including one or more first reflecting mirrors having a reflective layer uniformly tilted relative to the structure formation surface, the tilt angle of the first reflecting mirror is different between adjacent perforated reflecting segments so as to gradually change over a plurality of adjacent perforated reflecting segments, and at least one of the plurality of perforated reflecting segments surrounds an opening provided with no first reflecting mirror.