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Proceedings Paper

Influence of pinhole size and fiber optic imaging bundle on resolution in confocal endoscopic imaging system
Author(s): Huayong Ge; Qiushi Ren; Baohua Wang; Wangrong Li
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Paper Abstract

A novel confocal endoscopic imaging system is designed for imaging thick sample. The lateral and axial detected image intensity is deduced and calculated based on point spread function (PSF). The analysis of influence of pinhole and fiber on resolution is given. Our researches show that the lateral resolution improvement is much more sensitive to pinhole size than the axial resolution. Confocal system has narrower half width at half maximum (HWHM) and higher lateral and axial resolution for smaller pinhole. At last a criterion for pinhole size is introduced first of all to ensure confocal imaging and maximize signal-to-noise ratio, which is very helpful in the practical design of confocal endoscopic imaging system.

Paper Details

Date Published: 20 January 2005
PDF: 8 pages
Proc. SPIE 5633, Advanced Materials and Devices for Sensing and Imaging II, (20 January 2005); doi: 10.1117/12.575698
Show Author Affiliations
Huayong Ge, Shanghai Jiaotong Univ. (China)
Shanghai Univ. (China)
Qiushi Ren, Shanghai Jiaotong Univ. (China)
Baohua Wang, Shanghai Univ. (China)
Wangrong Li, Shanghai Jiaotong Univ. (China)

Published in SPIE Proceedings Vol. 5633:
Advanced Materials and Devices for Sensing and Imaging II
Anbo Wang; Yimo Zhang; Yukihiro Ishii, Editor(s)

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