Thermal endoscope based on cost-effective LWIR camera cores.

Area of Science:

• Engineering
• Medical Devices
• Thermal Imaging

Background:

• Traditional thermography equipment is often too large for confined spaces or minimally-invasive procedures.
• There is a need for compact, versatile thermal imaging tools for specialized applications.

Purpose of the Study:

• To report the development and implementation of a miniaturized thermal endoscope.
• To enable thermal imaging in previously inaccessible areas and surgical settings.

Main Methods:

• Utilized Lepton Long-Wave Infrared (LWIR) camera cores and custom miniaturized electronics.
• Developed two Printed Circuit Board (PCB) configurations for frontal and lateral thermal vision.
• Integrated the sensor into a protective case (15mm diameter) with a Germanium optical window.
• Controlled the endoscope using a Raspberry Pi and specialized Infrared Vision Software for thermographic calculations.

Main Results:

• Successfully implemented a compact thermal endoscope with frontal or lateral viewing capabilities.
• The device allows for thermographic calculation of object temperature based on emissivity and environmental parameters.
• Demonstrated compatibility with confined space diagnostics and robotic-assisted surgery.

Conclusions:

• The miniaturized thermal endoscope is a viable tool for non-destructive diagnostics in confined engineering applications.
• Its dimensions make it suitable for integration into minimally-invasive surgical procedures, broadening the scope of thermal imaging.
• The developed system provides a flexible platform for advanced thermography in restricted environments.