Information Recording Object Angle Assessment via Layered Reflectivity
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Solution Overview
Problem
Existing information recording objects require adjusting the read angle of embedded information, making it difficult to assess the correct viewing angle for reading embedded information, such as authenticity determination in printed matters.
Innovation Solution
An information recording object is designed with a combined image of a lustrous layer and a transparent layer, where the lustrous layer and transparent layer have different reflected light quantities based on the viewing angle, allowing the transparent layer to be easily recognizable in the regular reflection region and the lustrous layer in the diffusible reflection region, with the transparent layer forming a pattern and being positioned differently on the lustrous layer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If embedded information is made difficult to estimate from copies using angle-dependent visibility, then security and authenticity determination are improved, but it becomes difficult to assess the correct read angle for reading the embedded information
Solution Approach 1:
A guide pattern is introduced as an intermediary element that mediates between the security requirement (hard to read embedded information) and the usability requirement (easy to assess read angle). The guide pattern consists of transparent layers with specific refractive indices that create visible guidance marks at certain angles, helping users locate and assess the correct reading angle without revealing the embedded authentication information
Solution Approach 2:
The information recording object is segmented into functionally distinct components: guide patterns for angle assessment and embedded authentication information for security verification. The guide patterns use transparent layers with different refractive indices arranged in specific configurations, while the authentication information uses opaque or differently indexed layers, allowing each component to fulfill its specific function independently
2Ease of operation
If the embedded information is made visible at specific angles for easy reading, then readability is improved, but the security against copying and estimation is reduced
Solution Approach 1:
Different regions of the information recording object have different optical properties: guide patterns use transparent layers with specific refractive indices visible at certain angles, while authentication information regions use opaque layers or layers with different refractive indices that remain hidden at those same angles. This local differentiation allows simultaneous optimization of readability for guide patterns and security for authentication information
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
This design enables easy assessment of the read angle for embedded information, ensuring that the authenticity information is difficult to visually understand while allowing for easy reading of the embedded code by adjusting the viewing angle, thus enhancing the security and readability of the information recording object.
Implementation Method 1
each of the first and second images is configured so as to have a different reflected light quantity depending on an viewing angle
Data Source
AI summary
Provided is an information recording object designed such that a read angle of embedded information is easily assessed. An information recording object, which comprises a combined image including an image C1 and an image C2 formed on the image C1, is configured so that the image C1 and the image C2 are different patterns generated according to specific rules and so that the reflected light quantities differ due to respective viewing angles, and the image C1 and/or the image C2 can be recognized in the combined image in accordance with the viewing angle, and the combined image has an angle-specifying area formed using a material having the same reflected light quantity as the image C2.