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Proceedings Paper

Modelling of a laser-pumped light source for endoscopic surgery
Author(s): Valerie J. Nadeau; Daniel S. Elson; George B. Hanna; Mark A. A. Neil
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Paper Abstract

A white light source, based on illumination of a yellow phosphor with a fibre-coupled blue-violet diode laser, has been designed and built for use in endoscopic surgery. This narrow light probe can be integrated into a standard laparoscope or inserted into the patient separately via a needle. We present a Monte Carlo model of light scattering and phosphorescence within the phosphor/silicone matrix at the probe tip, and measurements of the colour, intensity, and uniformity of the illumination. Images obtained under illumination with this light source are also presented, demonstrating the improvement in illumination quality over existing endoscopic light sources. This new approach to endoscopic lighting has the advantages of compact design, improved ergonomics, and more uniform illumination in comparison with current technologies.

Paper Details

Date Published: 23 September 2008
PDF: 9 pages
Proc. SPIE 7103, Illumination Optics, 71030J (23 September 2008); doi: 10.1117/12.797630
Show Author Affiliations
Valerie J. Nadeau, Imperial College London (United Kingdom)
Daniel S. Elson, Imperial College London (United Kingdom)
George B. Hanna, Imperial College London (United Kingdom)
Mark A. A. Neil, Imperial College London (United Kingdom)

Published in SPIE Proceedings Vol. 7103:
Illumination Optics
Tina E. Kidger; Stuart R. David, Editor(s)

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