Coherent narrow-band light source for miniature endoscopes
| Autor: | Shao-Yu Lee, Chih-Cheng Hsieh, Jinchang Ren, Po-Wei Yi, Stephen Marshall, Ankur Gogoi, Ming-Kuan Lu, Yuan Tsai-Lin, Fu Jen Kao, Zhan-Yu Chen |
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| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Physics
CMOS sensor Optical fiber Pixel business.industry Color image TK 02 engineering and technology Laser Atomic and Molecular Physics and Optics law.invention 020210 optoelectronics & photonics Optics law Computer Science::Computer Vision and Pattern Recognition 0202 electrical engineering electronic engineering information engineering Monochrome RGB color model Electrical and Electronic Engineering business Image resolution |
| ISSN: | 1077-260X |
| Popis: | In this work, we report the successful implementation of a coherent narrow-band light source for miniature endoscopy applications. An RGB laser module that provides much higher luminosity than traditional incoherent white light sources is used for illumination, taking advantages of the laser light's high spatial coherence for efficient light coupling. Notably, the narrow spectral band of the laser light sources also enables spectrally resolved imaging, to distinguish certain biological tissues or components. A monochrome CMOS camera is employed to synchronize with the time lapsed RGB laser module illumination for color image acquisition and reconstruction, which provides better spatial resolution than a color CMOS camera of comparable pixel number, in addition to spectral resolving. |
| Databáze: | OpenAIRE |
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