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Laser indication light configuration

  • US 20020141460A1
  • Filed: 03/19/2002
  • Published: 10/03/2002
  • Est. Priority Date: 03/20/2001
  • Status: Active Grant
First Claim
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7. A method of ensuring that an operator wearing protective eyewear tuned to a primary wavelength is aware that the laser is on or off, comprising the steps of:

  • providing a source of indicator light other than the primary wavelength;

    co-injecting the indicator light into the laser beam to form a co-propagating beam; and

    viewing light from the co-propagating beam through the protective eyewear.

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