Abstract: The invention relates to a method for unambiguously identifying an object (1, 2, 3) having one or both of the following features a), b): a) at least one unambiguous identification means (4, 5, 6) is arranged on or in an object (1, 2, 3) that is in the form of a space projectile (1, 2); a transmission signal (11) having electromagnetic waves is sent from a transmission station (7) to the identification means (4, 5, 6) of the space projectile (1, 2) that is in space (15); an identification signal (12) having electromagnetic waves that are returned by the identification means (4, 5, 6) of the space projectile (1, 2) in response to the transmission signal (11) is received in a reception station (9); the space projectile (1, 2) is unambiguously identified using the identification signal (12); b) at least one unambiguous identification means (4, 5, 6) that is set up for directional reflection of an identification signal (12) in response to a transmission signal (11) with a defined reflection direction is arranged

Abstract: A device for laser-optical generation of mechanical waves for processing and/or examining a body includes a laser light source for generation of laser light and a modulator, on which a generated laser light falls and with which, from an incident laser light, a predetermined laser light intensity distribution can be generated on or in the body, in such a way that mechanical waves are excited on or in the body, with which the body is processed and/or with which, via detection of said waves, the body can be examined. According to certain aspects of the invention, the modulator is formed as a diffractive optical element wherein a height profile structure is formed on the surface of the diffractive optical element, with which the phase of the incident laser light is varied, thus generating a predetermined laser light intensity distribution.

Abstract: A method and a device for inspecting the quality of a formed thermoplastic fiber-reinforced plastic component wherein the component is tested by means of a sensor unit with a downstream electronic evaluation unit for analysis of the measuring result acquired by sensor technology by means of sample comparison, wherein by means of the optical sensor unit the surface roughness of the plastic component is measured after forming, which surface roughness is analyzed by means of the evaluation unit by a comparison with a stored reference pattern in such a manner that increased surface roughness is interpreted as increased internal materials porosity.

Abstract: A method and a device for inspecting the quality of a formed thermoplastic fiber-reinforced plastic component wherein the component is tested by means of a sensor unit with a downstream electronic evaluation unit for analysis of the measuring result acquired by sensor technology by means of sample comparison, wherein by means of the optical sensor unit the surface roughness of the plastic component is measured after forming, which surface roughness is analyzed by means of the evaluation unit by a comparison with a stored reference pattern in such a manner that increased surface roughness is interpreted as increased internal materials porosity.

Abstract: A device for laser-optical generation of mechanical waves for processing and/or examining a body includes a laser light source for generation of laser light and a modulator, on which a generated laser light falls and with which, from an incident laser light, a predetermined laser light intensity distribution can be generated on or in the body, in such a way that mechanical waves are excited on or in the body, with which the body is processed and/or with which, via detection of said waves, the body can be examined. According to certain aspects of the invention, the modulator is formed as a diffractive optical element wherein a height profile structure is formed on the surface of the diffractive optical element, with which the phase of the incident laser light is varied, thus generating a predetermined laser light intensity distribution.

Abstract: The invention relates to a device and method for displaying a static or moving picture, wherein the inventive device comprises a laser light source and a screen and is characterized in that said screen has a structure at which the illuminated parts simultaneously reflect or transmit light in different directions inside a beam width.

Abstract: The invention relates to a device and method for displaying a static or moving picture, wherein the inventive device comprises a laser light source and a screen and is characterized in that said screen has a structure at which the illuminated parts simultaneously reflect or transmit light in different directions inside a beam width.

Abstract: A method for the self-calibration of a tunable, diode pumped solid state laser in which the frequency or the wavelength of the laser radiation of the fundamental frequency and/or doubled frequency is changed by of changing the optical cavity length by means of a piezo-actuator or Brewster window over the total amplification bandwidth of the laser-active material. According to the method, the performance curves during the tuning of an etalon or corresponding optical elements arranged in the cavity are recorded and stored and a tuning function for the respective optical element or optical elements is generated (derived) from these curves by a microcontroller or computer. An optimum working point for the optical element or optical elements for maximum suppression of side modes is adjusted by a digital or analog regulator with the help of a learning curve (learning characteristic).

Abstract: A method for the self-calibration of a tunable, diode pumped solid state laser in which the frequency or the wavelength of the laser radiation of the fundamental frequency and/or doubled frequency is changed by of changing the optical cavity length by means of a piezo-actuator or Brewster window over the total amplification bandwidth of the laser-active material. According to the method, the performance curves during the tuning of an etalon or corresponding optical elements arranged in the cavity are recorded and stored and a tuning function for the respective optical element or optical elements is generated (derived) from these curves by a microcontroller or computer. An optimum working point for the optical element or optical elements for maximum suppression of side modes is adjusted by a digital or analog regulator with the help of a learning curve (learning characteristic).