Carl Zeiss Meditec Ag

Thomas Hollerbach

Claus Goder

Eckhard Schroeder

Juergen Kuehnert

Torsten Feige

A device for shaping objects by removal of material from the surface thereof with a pulsed laser beam and a deflecting device through which the laser bean is guided over the surface of the object. An optical device is provided for changing the distribution of the radiation intensity inside the laser beam cross section. After the passage of the laser beam through this optical device, the radiation intensity has a bell-shaped or Gaussian distribution, or a distribution similar to a bell-shaped or Gaussian distribution, in at least one cross-sectional direction through the laser beam.

Object figuring device

A device for shaping objects by removal of material from the surface thereof with a pulsed laser beam and a deflecting device through which the laser beam is guided over the surface of the object. An optical device is provided for changing the distribution of the radiation intensity inside the laser beam cross section. After the passage of the laser beam through this optical device, the radiation intensity has a bell-shaped or Gaussian distribution, or a distribution similar to a bell-shaped or Gaussian distribution, in at least one cross-sectional direction through the laser beam.

Object shaping device

A method for measuring at least one of an energy and a position of a pulsed laser beam, notably in an ophthalmologic excimer laser. The pulsed laser beam is intermittently directed at a sensor, which measures its energy and/or position. In addition, a device for measuring at least one of an energy and a position of a pulsed laser beam. The device includes a sensor configured to measure at least one of the energy and the position of the pulsed laser beam, and a beam deflection device, which is configured to guide the pulsed laser beam and to intermittently direct the pulsed laser beam at the sensor.

Method and device for monitoring the energy and/or the position of a pulsed and scanned laser beam

A device for figuring objects by means of material erosion of the surface thereof, comprising a pulsed laser beam and a deflection device through which the laser beam is directed at the object surface and via which the object surface is guided. The invention is suitable for figuring natural optical lenses made from a biological substance or artificial optical lenses. The inventive device is provided with an optical device to modify the distribution of the radiation intensity inside the laser beam cross section. The radiation intensity, once the laser beam has passed through the optical device, has a bell-shaped or Gaussian-like distribution in at least one cross sectional direction through the laser beam.

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Jena, Germany

Thomas Hollerbach