Abstract
The techniques for temperature measurement within the human body are important for clinical applications. A method for noncontact local infrared (IR) radiation measurements was investigated deep within an object to simulate how the core human body temperature can be obtained. To isolate the IR light emitted from a specific area within the object from the external noise, the radiating IR light was detected using an IR point detector, which comprises a pinhole and a thermopile positioned at an imaging relation with the region of interest within the object. The structure of the helical filament radiating IR light inside a light bulb was thermally imaged by scanning the bulb in two dimensions. Moreover, this approach was used to effectively measure IR light in the range of human body temperature using a glass plate placed in front of the heat source, mimicking the ocular fundus.
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Acknowledgements
I am very grateful to K. Nakano, R. Imai and S. Minami for their valuable cooperation in our experiments.
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Hisaka, M. Noncontact localized internal infrared radiation measurement using an infrared point detector. Opt Rev 25, 397–402 (2018). https://doi.org/10.1007/s10043-017-0394-z
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DOI: https://doi.org/10.1007/s10043-017-0394-z