Optical Key Authentication Using Multi-Position Refraction Patterns
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing access control systems are vulnerable to duplication and mimicking due to their ease of replicating key or card properties, leading to unauthorized access, as they rely on identifiable characteristics that can be copied or mimicked by knowledgeable individuals.
Innovation Solution
A highly secure optical key access control system utilizing an optical key with unique refraction properties and an access module featuring a light source, image catching array, and electronic processor, where the optical element is positioned in multiple prearranged positions to produce a set of unique refraction images that must match preauthorized patterns for access, with adjustable light source and image catching array positions to enhance security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional hardware keys or electro-optical cards are used for access control, then the system is easy to operate and cost effective, but the keys or cards can be copied or mimicked by studying their distinctive properties
Solution Approach 1:
The patent replaces traditional mechanical or electro-optical key systems with an optical system that uses refraction patterns. Instead of using physical keys or cards with identifiable characteristics, the system uses transparent optical elements that refract light in unique patterns, making duplication extremely difficult while maintaining ease of operation.
Solution Approach 2:
The patent changes the fundamental parameter being verified from physical or electromagnetic properties to optical refraction patterns. By measuring how light bends through transparent materials with unique internal structures, the system creates a security parameter that is extremely difficult to replicate, thus improving security against duplication.
2Reliability
If optical prisms and light sources are placed inside the key in fixed positions, then the system provides difficult copying of optical properties, but the scatter pattern can still be mimicked by studying the key
Solution Approach 1:
The patent extracts the light source from the key and places it in the lock mechanism. This separation means the key only contains the transparent optical element, while the light source and detection systems are in the lock. This extraction prevents complete replication of the optical system and protects the scatter pattern information.
Solution Approach 2:
The patent moves the verification process to a different dimension by using optical refraction patterns rather than physical or electromagnetic properties. The three-dimensional refraction patterns created by light passing through the transparent element at multiple angles provide a much harder-to-copy security parameter.
3Ease of operation
If a single scatter pattern is used for authentication, then the system is simple to operate, but it is vulnerable to mimicking the authorized pattern
Solution Approach 1:
The patent segments the authentication process into multiple measurements taken at different angles and positions. Instead of relying on a single scatter pattern, the system collects multiple refraction pattern measurements, which must all match the authorized patterns. This segmentation makes mimicking extremely difficult while the process remains automated and simple to operate.
Solution Approach 2:
The patent uses periodic action by rotating or moving the optical key through multiple positions during authentication. The light source and detectors take measurements at regular intervals as the key is positioned differently, creating a series of refraction patterns that must all match. This periodic measurement approach enhances security while maintaining operational simplicity through automation.
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 system significantly enhances security by requiring a set of unique refraction images to match preauthorized patterns, making it difficult for forgers to replicate the optical key and ensuring secure access to premises and databases, as the initial position and direction of the light beam within the access module are unknown, thus preventing unauthorized access.
Implementation Method 1
utilizing unique optical refraction properties of non-duplicatable transparent objects
Data Source
AI summary
A highly secure optical key access control system utilizing unique optical refraction properties of non-duplicatable transparent objects to secure premises or computer databases is disclosed. The said access control system includes an optical key containing an optical element with unique refraction properties and an access module comprising a light source, an image catching array and an electronic processor. The optical element of the optical key is inserted into the access module between the light source and the image catching array at the initial and then several following prearranged positions and a resulting set of unique refraction images appearing on the surface of the image catching array is processed with the electronic processor for comparison against preauthorized sets of refraction images to grant or deny access to the protected premises or protected computer databases.