Scanning laser system to determine the corneal shape

The development and tests of a scanning system to be used to determine the corneal topography with the laser deflectometry method are presented. In this equipment, a He-Ne laser beam scans the cornea by describing a spiral trajectory generated by two components: radial and angular. The first compone...

Full description

Saved in:
Bibliographic Details
Published in:Review of scientific instruments 2005-07, Vol.76 (7), p.075104-075104-5
Main Authors: Ascanio, Gabriel, Caballero-Ruiz, Alberto, Ruiz-Huerta, Leopoldo, Gonzalez-Cardel, Mario, Diaz-Uribe, Rufino
Format: Article
Language:English
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The development and tests of a scanning system to be used to determine the corneal topography with the laser deflectometry method are presented. In this equipment, a He-Ne laser beam scans the cornea by describing a spiral trajectory generated by two components: radial and angular. The first component is produced by the displacement of a plane mirror moved by a linear pneumatic actuator. The second component is produced by passing the beam through a Dove prism which is rotating by means of a belt drive coupled to a high-speed electric motor. Tests were first performed by analyzing both components independently and then they were characterized by combining the two components. Results are discussed and compared to those of an earlier cited work.
ISSN:0034-6748
1089-7623
DOI:10.1063/1.1947773