Lens Presence Detection by Edge Light Transmission
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Solution Overview
Problem
Conventional methods for determining the presence and condition of lenses in consumer electronics, such as gaming systems, often rely on indirect measurements, leading to potential false inferences and safety risks due to the lack of direct verification of lens installation and integrity.
Innovation Solution
A method involving a light emitter directing light through a translucent object, such as a lens, with a light detector measuring the intensity at the opposing edge to determine the presence and condition, using a voltage signal comparison to assess the lens's integrity and safety compliance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If conventional proxy-based detection methods are used to determine lens presence and condition, then the device complexity is reduced, but the measurement precision and reliability of lens condition detection deteriorate due to potential false inferences
Solution Approach 1:
The patent introduces an intermediary translucent object (such as a test pattern or calibration target) placed between the light source and the lens. This intermediary object modulates the light in a known pattern that can be detected by the sensor, providing direct information about lens presence and condition without requiring complex proxy-based inference systems.
Solution Approach 2:
The patent replaces mechanical or complex optical detection systems with a simplified light-based detection method. By using a light source, intermediary object, and sensor arrangement, the system directly measures lens condition through light transmission characteristics, eliminating the need for complex mechanical detection mechanisms.
2Reliability
If direct measurement of lens presence and condition is implemented, then the reliability of safety compliance verification is improved, but the device complexity increases due to additional components required for direct detection
Solution Approach 1:
The patent designs the light source and sensor arrangement to serve multiple functions: it detects lens presence, verifies lens condition, and can potentially detect other optical path obstructions. This multi-functionality reduces the need for separate dedicated sensors for each detection task, thereby limiting the increase in device complexity while maintaining high reliability.
Solution Approach 2:
The system uses the existing optical path components (light source, optical elements, sensor) to perform self-verification of lens condition. The same components that are part of the functional optical path are utilized for safety verification, eliminating the need for entirely separate verification subsystems.
3Object-affected harmful factors
If continuous real-time detection of lens condition is implemented, then the safety protection against laser eye injury is improved, but the use of energy increases due to continuous operation of detection components
Solution Approach 1:
The patent implements periodic detection cycles where the light source and sensor operate in alternating intervals between detection and normal operation. During detection phases, the system verifies lens condition; during normal phases, the system operates its primary function. This periodic operation provides continuous safety monitoring while significantly reducing energy consumption compared to truly continuous operation.
Solution Approach 2:
The system performs detection at sufficient frequency to ensure safety (partial action) rather than truly continuous monitoring. The detection frequency is optimized to provide adequate safety protection while minimizing energy consumption, using just enough detection activity to maintain safety compliance without excessive energy use.
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 approach provides continuous, real-time detection of lens presence and condition, ensuring safety compliance by accurately determining if the lens is present and undamaged, thereby preventing potential eye injuries from laser exposure.
Implementation Method 1
a light is emitted that is directed at a first edge of a translucent object to pass through the translucent object
Implementation Method 2
An intensity of the light is detected proximate an opposing, second edge of the translucent object
Data Source
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AI summary
In embodiments of object presence and condition detection, a light (108) is emitted that is directed at a first edge (110) of a translucent object (106) to pass through the translucent object, such as a lens. An intensity of the light is detected proximate an opposing, second edge (112) of the translucent object. A presence and/or a condition of the translucent object can then be determined based on the detected intensity of the light that passes through the object. The translucent object can be implemented as a multi-lens array, and a laser light is directed through optic surfaces of the multi-lens array with a laser. The presence and the condition of the multi-lens array can be continuously determined as a safety compliance of the laser light being directed through the multi-lens array.