Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/90192
Title: Design and simulation of GRIN objective lenses for an imaging fiber based speckle metrology system
Authors: Prasad, A. S. Guru
Haridas, Aswin
Chan, Kelvin H. K.
Murukeshan, V. M.
Prabhathan, P.
Keywords: DRNTU::Engineering::Mechanical engineering
Speckle Imaging
Fiber Optic Metrology
Issue Date: 2016
Source: Prabhathan, P., Prasad, A. S. G., Haridas, A., Chan, K. H. K., & Murukeshan, V. M. (2016). Design and simulation of GRIN objective lenses for an imaging fiber based speckle metrology system. Second International Seminar on Photonics, Optics, and Its Applications (ISPhOA 2016), 10150, 1015008-. doi:10.1117/12.2243778
Abstract: Gradient-Index (GRIN) lenses are characterized by its small diameter and length, enabling them to be an effective lens for an integrated probe based imaging system. For a speckle-based surface metrology system, the imaging lens plays an important role in deciding the statistical dimensions of the speckles. In such cases, the design and simulation of the lens system would be a key process to better the performance of the lensed imaging fiber probe. In this context, this paper focuses on the design of lensed fiber probes for a speckle-based surface metrological imaging system that can find intra cavity interrogation applications. Different optical properties of GRIN lenses and imaging fibers are considered while designing the final probe distal end to meet the targeted specifications. Singlet GRIN lens configuration is analyzed for a front view configuration and a parameter optimization has been carried out to obtain the specifications including the field-of-view, resolution, working distance and magnification.
URI: https://hdl.handle.net/10356/90192
http://hdl.handle.net/10220/47209
DOI: http://dx.doi.org/10.1117/12.2243778
Rights: © 2016 Society of Photo-optical Instrumentation Engineers (SPIE). This paper was published in Second International Seminar on Photonics, Optics, and Its Applications (ISPhOA 2016) and is made available as an electronic reprint (preprint) with permission of Society of Photo-optical Instrumentation Engineers (SPIE). The published version is available at: [http://dx.doi.org/10.1117/12.2243778]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law.
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