Surgery – Instruments – Light application
Patent
1995-03-20
1997-06-03
Shay, David M.
Surgery
Instruments
Light application
606 4, 606 13, 351213, A61N 506
Patent
active
056349238
ABSTRACT:
The invention is directed to a safety filter for an ophthalmic therapeutic and/or diagnostic unit into which a laser beam is coupled for therapeutic purposes. The safety filter is optically dimensioned in such a way that no change in the focal intercept results when the filter is swung into the viewing beam path. The filter largely absorbs the particular laser wavelength.
REFERENCES:
patent: 4520816 (1985-06-01), Schachar et al.
patent: 4753525 (1988-06-01), Gaul et al.
patent: 4865441 (1989-09-01), Reis
patent: 5042939 (1991-08-01), Zayek
patent: 5300062 (1994-04-01), Ueno
patent: 5342351 (1994-08-01), Blaha et al.
Brenner Roland
Reimer Peter
Schlosser Josef
Carl-Zeiss-Stiftung
Ottesen Walter
Shay David M.
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