Ldt-gmbh & Co. Laser-display-technologie Kg

Ltd Gmbh & Co. Laser-display-technologie Kg

Richard Wallenstein

Christhard Deter

Klaus Hiller

Juergen Kraenert

Frank Goepfert

Wolfram Biehlig

Joerg Wunderlich

In a process for generating at least three laser beams of different wavelengths for displaying color video pictures, a pulsed laser is used to generate light. The light output of the pulsed laser is released in a pulse and is introduced into a medium with nonlinear optical characteristics for generating a laser beam. In addition to the laser beam generated by excitation, this medium releases an additional laser beam whose frequency is given by the sum or difference frequencies of the exciting laser beam and the excited laser beam due to the nonlinear optical characteristics of the medium. The laser beams generated by the medium in this way and the exciting laser beam are used directly, or after frequency conversion, to display monochromatic partial images of a color video picture. An apparatus according to the invention contains suitable devices for carrying out the process.

Process and apparatus for generating at least three laser beams of different wavelength for the display of color video pictures

Device with a laser for image presentation

Process and apparatus for generating at least three laser beams of

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Gruenstadt, Germany

Richard Wallenstein