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Proceedings Paper

Slit-lamp dual-beam interferometer
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Paper Abstract

A modified slit lamp is described which makes axial eye length measurements with optical interferometry available to the clinic. A separate partial coherence Doppler interferometer is coupled to the slit lamp optics by a monomode fiber and a slit lamp attachment. As compared with the more common ultrasonic echo-impulse technique the main advantages of this technique are its high accuracy and resolution and its noncontact operation. The instrument is described and first results are presented. A standard deviation of +/- 21 micrometers has been obtained.

Paper Details

Date Published: 1 February 1994
PDF: 6 pages
Proc. SPIE 2083, Microscopy, Holography, and Interferometry in Biomedicine, (1 February 1994); doi: 10.1117/12.167412
Show Author Affiliations
Adolf Friedrich Fercher, Univ. Wien (Austria)
Haicang Li, Shanghai Institute of Laser Technology (China)
Christoph K. Hitzenberger, Univ. Wien (Austria)


Published in SPIE Proceedings Vol. 2083:
Microscopy, Holography, and Interferometry in Biomedicine
Adolf Friedrich Fercher; Aaron Lewis; Halina Podbielska; Herbert Schneckenburger; Tony Wilson, Editor(s)

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