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US 5,688,262 AGranted
Laser microscope adaptor apparatus with auto-focus
AssigneeLaser Industries, Ltd.
InventorMartin David Abraham
Life of this patent
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Abstract
A laser micromanipulator for surgical applications includes an adaptor attachable to a laser and to a microscope which automatically maintains, preferably using phase detection, the laser beam in focus on tissue during any changes in the working distance by the surgeon manipulating the microscope.
Claims1
A mirror-based laser micromanipulator comprising:
- a laser source outputting both a CO.sub.2 treatment laser beam and a HeNe visible aiming laser beam;
- a planar reflector having first and second silvered sides, with a conical hole drilled in the center of said planar reflector;
- said planar reflector positioned to receive the treatment and aiming beams, and reflect said beams from said first silvered side to reach a concave hyperbolic focussing mirror;
- said concave hyperbolic focusing mirror receiving, reflecting, and focusing the treatment and aiming beams such that said beams pass through said conical hole in said planar reflector to reach a concave spherical focusing mirror;
- said concave spherical focusing mirror reflecting said treatment and aiming beams to reach said second silvered side of said planar reflector;
- said planar reflector receiving said treatment and aiming beams, and reflecting said treatment and aiming beams from said second silvered side to reach a manipulable mirror,
- said manipulable mirror receiving said treatment and aiming beams, and reflecting said laser beams to reach a working plane.
4 more elements
Dependencies are inferred from the claim text.