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17 July 2015 Lensless transport-of-intensity phase microscopy and tomography with a color LED matrix
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Proceedings Volume 9524, International Conference on Optical and Photonic Engineering (icOPEN 2015); 95241P (2015) https://doi.org/10.1117/12.2189523
Event: International Conference on Optical and Photonic Engineering (icOPEN2015), 2015, Singapore, Singapore
Abstract
We demonstrate lens-less quantitative phase microscopy and diffraction tomography based on a compact on-chip platform, using only a CMOS image sensor and a programmable color LED array. Based on multi-wavelength transport-of- intensity phase retrieval and multi-angle illumination diffraction tomography, this platform offers high quality, depth resolved images with a lateral resolution of ∼3.7μm and an axial resolution of ∼5μm, over wide large imaging FOV of 24mm2. The resolution and FOV can be further improved by using a larger image sensors with small pixels straightforwardly. This compact, low-cost, robust, portable platform with a decent imaging performance may offer a cost-effective tool for telemedicine needs, or for reducing health care costs for point-of-care diagnostics in resource-limited environments.
© (2015) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Chao Zuo, Jiasong Sun, Jialin Zhang, Yan Hu, and Qian Chen "Lensless transport-of-intensity phase microscopy and tomography with a color LED matrix", Proc. SPIE 9524, International Conference on Optical and Photonic Engineering (icOPEN 2015), 95241P (17 July 2015); https://doi.org/10.1117/12.2189523
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