12 January 2018 Portable smartphone based quantitative phase microscope
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To realize portable device with high contrast imaging capability, we designed a quantitative phase microscope using transport of intensity equation method based on a smartphone. The whole system employs an objective and an eyepiece as imaging system and a cost-effective LED as illumination source. A 3-D printed cradle is used to align these components. Images of different focal planes are captured by manual focusing, followed by calculation of sample phase via a self-developed Android application. To validate its accuracy, we first tested the device by measuring a random phase plate with known phases, and then red blood cell smear, Pap smear, broad bean epidermis sections and monocot root were also measured to show its performance. Owing to its advantages as accuracy, high-contrast, cost-effective and portability, the portable smartphone based quantitative phase microscope is a promising tool which can be future adopted in remote healthcare and medical diagnosis.
© (2018) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Xin Meng, Xin Meng, Xiaolin Tian, Xiaolin Tian, Wei Yu, Wei Yu, Yan Kong, Yan Kong, Zhilong Jiang, Zhilong Jiang, Fei Liu, Fei Liu, Liang Xue, Liang Xue, Cheng Liu, Cheng Liu, Shouyu Wang, Shouyu Wang, } "Portable smartphone based quantitative phase microscope", Proc. SPIE 10620, 2017 International Conference on Optical Instruments and Technology: Optoelectronic Imaging/Spectroscopy and Signal Processing Technology, 1062009 (12 January 2018); doi: 10.1117/12.2292034; https://doi.org/10.1117/12.2292034

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