Metal Detectable Eyewear with External Marker Holder for Optical Clarity
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Solution Overview
Problem
Existing protective eyewear does not effectively maintain optical clarity while being metal detectable, as embedding metal markers in the lens body can cause distortion and are not easily detected by metal detectors.
Innovation Solution
The eyewear incorporates a metal marker housed in a marker holder with a forwardly-facing elongated groove that is not embedded in the lens body, maintaining optical clarity and ensuring detectability by metal detectors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If metal markers are embedded in the lens body, then metal detectability is improved, but optical clarity deteriorates due to distortion
Solution Approach 1:
The patent divides the metal marker system into separate components: a marker holder attached to the lens body and a metal marker contained within the holder. This segmentation allows the metal marker to be positioned away from the optical path, maintaining lens clarity while ensuring detectability. The marker holder and metal marker can be independently optimized for their respective functions.
Solution Approach 2:
The metal marker is extracted from the lens body and placed in a separate marker holder. This extraction removes the source of optical distortion from the lens, eliminating the harmful effect on optical clarity while preserving the metal detectability function through the external marker.
2Reliability
If metal markers are embedded in the lens body, then metal detectability is improved, but the marker becomes difficult to detect and retrieve
Solution Approach 1:
By separating the metal marker from the lens body into an external holder, the marker becomes accessible for inspection, removal, or replacement without damaging the lens. The modular design allows easy access to the marker while maintaining its detectability function.
Solution Approach 2:
The metal marker is taken out of the lens body and placed in an external holder, making it accessible for detection, removal, and replacement. This extraction solves the problem of marker accessibility while preserving metal detectability through the external positioning of the marker.
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 solution provides metal detectable eyewear with maintained optical clarity, allowing broken eyewear parts to be detected without distorting the lens, enhancing safety in environments with metal detection systems.
Implementation Method 1
the metal marker is metal detectable such that the protective eyewear is metal detectable upon placement near a metal detector
Data Source
AI summary
Protective eyewear includes a lens body, a metal marker, and a marker holder. The lens body has a first lens, a second lens, and a nosepiece interconnecting the first lens and the second lens. The marker holder is coupled to the lens body and formed to include a metal receiver to receive the metal marker therein so that the metal marker is detectable upon placement of the protective eyewear near a metal detector.