1 August 2007 A special laser device for dielectric breakdown generation used in ophthalmology
Author Affiliations +
Proceedings Volume 6785, ROMOPTO 2006: Eighth Conference on Optics; 67851P (2007); doi: 10.1117/12.757884
Event: ROMOPTO 2006: Eighth Conference on Optics, 2006, Sibiu, Romania
Abstract
To solve some microsurgical procedures in the anterior and posterior chambers using the photo disruptive effect, a special Nd:YAG nanosecond laser device is presented. The Nd:YAG laser is q-switched (Cr4+:YAG). The laser beam is expanded. After expansion, the laser beam is passed through a circular variable filter which is rotated by a processor, allowing energy to be set at any value in the range of 0.5-10 mJ. Two infrared LED-phototransistor pairs are used to position the filter. The laser beam is focused by the objective at 150 microns behind the object plane to avoid the damage of the Intraocular Lens.
© (2007) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
D. Savastru, E. Ristici, Marina Mustata, S. Miclos, M. Rusu, V. Savu, C. Radu, D. Tenciu, "A special laser device for dielectric breakdown generation used in ophthalmology", Proc. SPIE 6785, ROMOPTO 2006: Eighth Conference on Optics, 67851P (1 August 2007); doi: 10.1117/12.757884; https://doi.org/10.1117/12.757884
PROCEEDINGS
4 PAGES


SHARE
KEYWORDS
Optical filters

Nd:YAG lasers

Ophthalmology

Pulsed laser operation

Laser systems engineering

Light emitting diodes

Q switched lasers

Back to Top