Abstract: A device for beam forming includes at least two laser light sources capable of emitting laser radiation and an optical device capable of influencing the laser radiation such that the laser radiation has an intensity distribution in a working plane that at least partially corresponds to a top-hat distribution at least with regard to one direction. The laser beam may be at least partially overlapped by the optical device. The laser beam is a single-mode laser beam at least with regard to a direction perpendicular to the distribution direction.

Abstract: An apparatus for homogenizing light, including a lens array (5, 7, 8) with a plurality of lenses (6, 9, 10) through which the light to be homogenized can pass. The apparatus has at least two different center-to-center distances of the lenses (6, 9, 10) of the lens array (5, 7, 8), wherein the center-to-center distances of the lenses (6, 9, 10) decrease or increase from the inside to the outside.

Abstract: Device for illuminating an area, in particular for illuminating a mask (14), for example for a lithographic application, with at least one light source (1) for producing light (3) that can be used for the illumination, optics means (2) for shaping the light (3) produced by the at least one light source (1), and separation means (4, 4?, 4?) capable of dividing the light (3) to be used for the illumination into several mutually separated partial beams (5), so that these partial beams (5) can illuminate the area to be illuminated with a spacing therebetween. The present invention also relates to a device for applying light to a work area.

Abstract: A device for beam forming includes at least two laser light sources capable of emitting laser radiation and an optical device capable of influencing the laser radiation such that the laser radiation has an intensity distribution in a working plane that at least partially corresponds to a top-hat distribution at least with regard to one direction. The laser beam may be at least partially overlapped by the optical device. The laser beam is a single-mode laser beam at least with regard to a direction perpendicular to the distribution direction.

Abstract: An apparatus for forming laser radiation. The apparatus can form the laser radiation such that the laser radiation can enter an optical fiber. The apparatus contains a first lens device for deflection and/or imaging or collimation of the laser radiation with respect to a first direction, and a second lens device for deflection and/or imaging or collimation of the laser radiation with respect to a second direction. The first and the second lens devices are provided in or on a component.

Abstract: An apparatus for homogenizing light, including a lens array (5, 7, 8) with a plurality of lenses (6, 9, 10) through which the light to be homogenized can pass. The apparatus has at least two different center-to-center distances of the lenses (6, 9, 10) of the lens array (5, 7, 8), wherein the center-to-center distances of the lenses (6, 9, 10) decrease or increase from the inside to the outside.

Abstract: A device for homogenizing light has a first lens array provided with a number of convex lenses, and at least one second lens array disposed at a distance from the first lens array in the beam scattering direction and through which the light refracted by the first lens array can pass. The second lens array is formed with a number of first lenses that are respectively arranged at a distance from each other. At least one of the first lenses of the second lens array is associated with each convex lens of the first lens array. The convex lenses of the first lens array have a smaller curvature than the first lenses of the second lens array associated with said convex lenses.

Abstract: An optical irradiation device for the polarization of alkali metal atoms for the hyperpolarization of noble gases by spin exchange includes at least one semiconductor laser device which can generate laser light which, with regard to its wavelength, is suitable for the polarization of the alkali metal atoms. A polarizer effects circular polarization of the laser light generated by the semiconductor laser device. A device for introducing the laser light into a working region in which the alkali metal atoms to be polarized can be present, and a device for defining a wavelength of the laser light, which can couple part of the laser light back into the semiconductor laser device in order thereby to define the wavelength of the laser light at a predetermined wavelength or a predetermined wavelength range.

Abstract: A device for homogenizing light has a first lens array provided with a number of convex lenses, and at least one second lens array disposed at a distance from the first lens array in the beam scattering direction and through which the light refracted by the first lens array can pass. The second lens array is formed with a number of first lenses that are respectively arranged at a distance from each other. At least one of the first lenses of the second lens array is associated with each convex lens of the first lens array. The convex lenses of the first lens array have a smaller curvature than the first lenses of the second lens array associated with said convex lenses.

Abstract: Device for splitting a light beam (1), including at least one lens array (3) with a plurality of lenses (3a-3i) of which at least two have a mutually differing, positive focal length, wherein the light beam (1) that is to be split can pass through the at least one lens array (3) and form at least some mutually separated, at least partially convergent subbeams (1a-1i) after passing through the plurality of lenses (3a-3i), and deflecting means (4) with a plurality of deflecting elements that are arranged downstream of the at least one lens array (3) and can deflect at least some of the subbeams (1a-1i), wherein at least two of the deflecting elements have a different spacing (da-di) from the at least one lens array (3).

Abstract: Device for illuminating an area, in particular for illuminating a mask (14), for example for a lithographic application, with at least one light source (1) for producing light (3) that can be used for the illumination, optics means (2) for shaping the light (3) produced by the at least one light source (1), and separation means (4, 4?, 4?) capable of dividing the light (3) to be used for the illumination into several mutually separated partial beams (5), so that these partial beams (5) can illuminate the area to be illuminated with a spacing therebetween. The present invention also relates to a device for applying light to a work area.

Abstract: An optical irradiation device for the polarization of alkali metal atoms for the hyperpolarization of noble gases by spin exchange includes at least one semiconductor laser device which can generate laser light which, with regard to its wavelength, is suitable for the polarization of the alkali metal atoms. A polarizer effects circular polarization of the laser light generated by the semiconductor laser device. A device for introducing the laser light into a working region in which the alkali metal atoms to be polarized can be present, and a device for defining a wavelength of the laser light, which can couple part of the laser light back into the semiconductor laser device in order thereby to define the wavelength of the laser light at a predetermined wavelength or a predetermined wavelength range.

Abstract: A device for homogenizing light contains at least one homogenizer device having an entrance surface and an exit surface for the light that is to be homogenized. An array of cylinder lenses is disposed on the input surface and an array of cylinder lenses is disposed on the output surface of the at least one homogenizer. Cylinder axes of the cylinder lenses of the at least one homogenizer are oriented in a parallel manner in relation to each other. A configuration for illuminating a surface and to a configuration for focussing the light from a laser light source into a linear focussing area use the device for homogenizing.

Abstract: Apparatus for illuminating a surface, having at least one semiconductor laser bar with a plurality of emitters in the case of which the spacing of the individual emitters from one another is smaller than the extent of the emitters in the first direction (X), beam transforming means for transforming the laser light emerging from the emitters that are designed in such a way that they can exchange the divergence of the laser light with regard to the first direction (X) with the divergence with regard to the second direction (Y), the beam transforming means having such a spacing from the laser diode bar that at least the laser light from two directly adjacent emitters overlaps with one another upon impinging on the beam transforming means in the first direction (X).

Abstract: The invention relates to a pump chamber (2), in which laser active medium is stored. The pump light is introduced into said pump chamber (2), by means of one or several fluid light guides (12), whereby the fluid used as a light guide is used as coolant for the laser active medium (1).