Optical Device Enclosure Thermal Management and Electrical Isolation
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Solution Overview
Problem
Existing protective enclosures for optical devices fail to adequately address the challenges of thermal management, electrical isolation, and environmental protection, particularly in harsh conditions such as high temperatures, static discharge, and moisture exposure.
Innovation Solution
The enclosure comprises a thermally conductive, electrically isolating material shaped to match the optical device, a Faraday cage-like bezel and cover construction, and sealing elements like gaskets and a transparent optical window, along with a thermally conductive, electrically isolating material to dissipate heat and protect against electrical discharges and moisture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a protective enclosure is provided for the optical device, then the device is protected from environmental factors, but heat dissipation becomes problematic
Solution Approach 1:
The enclosure incorporates a cooling fan and heat sink structure specifically positioned to address thermal management in critical areas, while other portions of the enclosure provide environmental protection. This localized approach allows simultaneous achievement of protection and heat dissipation without compromising either function.
2Reliability
If the enclosure provides electrical isolation, then static discharge protection is improved, but thermal conduction is hindered
Solution Approach 1:
The patent employs an intermediary cooling structure (heat sink with fan) that acts as a thermal bridge between the optical device and the enclosure. This intermediary allows heat to be conducted away from the device while the enclosure itself maintains electrical isolation properties for static discharge protection.
3Reliability
If the enclosure is sealed for environmental protection, then moisture resistance is improved, but optical access is limited
Solution Approach 1:
The enclosure incorporates a transparent optical window that acts as a flexible barrier - it allows optical signals to pass through while maintaining the sealed environment for moisture protection. This thin film approach resolves the contradiction by providing both protection and optical access simultaneously.
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 solution provides effective thermal management, electrical isolation, and water resistance, enabling the optical device to operate reliably in various environmental conditions, including high temperatures and exposure to moisture and static discharge.
Implementation Method 1
the thermally conductive, electrically isolating, material provides electrical isolation of the optical device from the cover and conducts heat from the optical device to the top and side surfaces of the cover
Implementation Method 2
The bezel and the cover protect the optical device from discharge currents
Data Source
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AI summary
In accordance with an example embodiment, there is disclosed herein, an apparatus, comprising a bezel, a cover, and a thermally conductive, electrically isolating material. The cover comprises top and side surfaces, a cavity for receiving an optical device, a first opening for the optical device to obtain an image, and a second opening for allowing an electrical conductor to be coupled with the optical device. The thermally conductive, electrically isolating, material, is shaped in accordance with the shape of the optical device. The bezel and the cover protect the optical device from discharge currents. The thermally conductive, electrically isolating, material provides electrical isolation of the optical device from the cover and conducts heat from the optical device to the top and side surfaces of the cover.