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.
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July 2005
Research Article|
June 23 2005
Scanning laser system to determine the corneal shape
Gabriel Ascanio;
Gabriel Ascanio
a)
CCADET,
National University of Mexico
, P.O. Box 70-186, Mexico, DF 04510, Mexico
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Alberto Caballero-Ruiz;
Alberto Caballero-Ruiz
CCADET,
National University of Mexico
, P.O. Box 70-186, Mexico, DF 04510, Mexico
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Leopoldo Ruiz-Huerta;
Leopoldo Ruiz-Huerta
CCADET,
National University of Mexico
, P.O. Box 70-186, Mexico, DF 04510, Mexico
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Mario Gonzalez-Cardel;
Mario Gonzalez-Cardel
CCADET,
National University of Mexico
, P.O. Box 70-186, Mexico, DF 04510, Mexico
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Rufino Diaz-Uribe
Rufino Diaz-Uribe
CCADET,
National University of Mexico
, P.O. Box 70-186, Mexico, DF 04510, Mexico
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a)
Electronic mail: [email protected]
Rev. Sci. Instrum. 76, 075104 (2005)
Article history
Received:
September 30 2004
Accepted:
May 16 2005
Citation
Gabriel Ascanio, Alberto Caballero-Ruiz, Leopoldo Ruiz-Huerta, Mario Gonzalez-Cardel, Rufino Diaz-Uribe; Scanning laser system to determine the corneal shape. Rev. Sci. Instrum. 1 July 2005; 76 (7): 075104. https://doi.org/10.1063/1.1947773
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