Tube-leaky fiber bundle for infrared thermal image transmission
| Project/Area Number |
16K14241
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Electron device/Electronic equipment
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| Research Institution | Tohoku University |
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Principal Investigator |
Matsuura Yuji 東北大学, 医工学研究科, 教授 (10241530)
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| Co-Investigator(Kenkyū-buntansha) |
木野 彩子 東北大学, 医工学研究科, 学術研究員 (30536082)
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| Project Period (FY) |
2016-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2017: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2016: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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| Keywords | 中空光ファイバ / フォトニック結晶ファイバ / 赤外サーモグラフィー / 赤外光ファイバ / 熱画像伝送 / フォトニッククリスタルファイバ / イメージ伝送 |
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| Outline of Final Research Achievements |
A tube-leaky fiber bundle that is fabricated by a glass drawing technique is proposed for endoscopic, infrared thermal image transmission. A fiber bundle that has 245 cores and each pixel sizes are less than 80 um was fabricated. By setting the thickness of glass wall to a quarter-wavelength optical thickness, light is confined in the air core as a leaky mode with a low loss owing to the interference effect of the thin glass wall. From measurement of the transmission losses, it was found that bundled tube-leaky fibers have reasonably low transmission losses in spite of the small pixel size. Considering applications with rigid endoscopes, an imaging system composed of a 30-cm long fiber bundle and a half-ball lens with a diameter of 2 mm that can be inserted into an endoscope was fabricated. By using this imaging system, it was shown that the minimum detected temperature was 32.0 ℃ and the temperature resolution of the system was around 0.7 ℃ in the body temperature range.
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Report
(3 results)
Research Products
(15 results)
