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Proceedings Paper

Characterization of low cost optical imaging system based on optical holography
Author(s): M. Darwiesh; Ashraf F. El Sherif
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Paper Abstract

Optical imaging systems are widely used in different applications including tracking for portable scanners; input pointing devices for laptop computers, cell phones, and cameras; and fingerprint-identification scanners. Also in optical navigation (military target tracking where tracking sensors follow airplanes, missiles, and other targets [1-4]. Since the two main parameters affecting the performance of the optical imaging systems are the optical source and the surface nature. So; The aim of the paper is to study how the optical source affects the performance of the optical imaging systems by exchange the operating surface of the optical imaging system with a standard diffuse object (Gabbor holograms) to study and analyze laser speckle pattern and Circular interference fringes produced by illuminating these standard diffusers using different optical sources [coherent (3mW diode laser, and 10mW He-Ne laser) or partially coherent light (LEDs)]. The Circular interference fringes were used to display the relations between the fringes order and its radii. From these relations we found that the electronic sensor can deliver the same accuracy of laser diodes when replacing it by commercial LEDs. So, we can design a new cheaper, high performance optical imaging system using commercial LED sources.

Paper Details

Date Published: 4 March 2013
PDF: 16 pages
Proc. SPIE 8641, Light-Emitting Diodes: Materials, Devices, and Applications for Solid State Lighting XVII, 86411U (4 March 2013); doi: 10.1117/12.974895
Show Author Affiliations
M. Darwiesh, Military Technical College (Egypt)
Ashraf F. El Sherif, Military Technical College (Egypt)


Published in SPIE Proceedings Vol. 8641:
Light-Emitting Diodes: Materials, Devices, and Applications for Solid State Lighting XVII
Klaus P. Streubel; Heonsu Jeon; Li-Wei Tu; Martin Strassburg, Editor(s)

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