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Light Beam Delivery System With Power, Wavelength And Spot Size Control

  • US 20100097682A1
  • Filed: 10/16/2008
  • Published: 04/22/2010
  • Est. Priority Date: 10/16/2008
  • Status: Active Grant
First Claim
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1. A beam delivery system for treating target tissue, comprising:

  • an input for receiving a light beam;

    a plurality of optical elements for delivering the light beam from the input to target tissue;

    one or more pick-off optical elements for directing a first portion of the light beam to a first power detector for measuring a power level of the light beam first portion, and for directing a second portion of the light beam to a second power detector for measuring a power level of the light beam second portion;

    a first filter positioned to filter out or diffract certain wavelengths of light from the light beam first portion before reaching the first detector; and

    a controller for determining any difference between the power levels measured by the first and second detectors, and for taking a predetermined action if the determined difference exceeds a predetermined value.

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