Abstract: An optical contact element for coupling a laser processing device to an object to be processed is described, wherein the laser processing device focuses a scanned laser beam through a surface of the object into a certain region of the object and the contact element comprises an entrance side for receiving the scanned laser radiation and an exit side imparting a defined surface curvature to the surface of the object upon contact therewith, wherein a diffractive optical element is provided on the entrance side, which element reduces the angle of incidence of the laser radiation on the surface of the object.

Abstract: A microscope objective system is provided, comprising an objective (3), which comprises an illumination beam path via which illumination radiation from a source (2) is directed onto an object (7) to be examined, as well as a partial detection beam path surrounding at least part of the illumination beam path and, together with the illumination beam path, forms a detection beam path via which radiation to be detected and coming from the sample (7) is guided towards a detector (6).

Abstract: The invention is directed to an optical unit for a head-up display comprising an image generator, a mirror and a cover plate which are arranged in a housing one behind the other in the direction of light propagation. The beam path is directed to a windshield. The invention is wherein that the mirror is a rear-surface mirror whose reflection surface has a light-bundling action. The rear-surface mirror has, in addition, a refractive action that can be generated by the refractive index of the mirror material and a material thickness which changes between the reflection surface and the transmissive surface.

Abstract: Apparatus for inspecting objects especially masks in microlithography that are disposed in a vacuum chamber. The apparatus includes a converter for converting illuminating radiation emitted from the object into a radiation of a higher wavelength. A sensor for recording images is disposed outside the vacuum chamber and arranged as an optical interface from the vacuum chamber to the sensor of the converter or at least one part of an image lens is arranged as a window in the vacuum chamber.

Abstract: The invention is directed to a projection unit for a head-up display comprising an image generator and a first mirror and second mirror for optical imaging which are arranged in a housing one after the other in the light propagation direction in such a way that the beam path is folded twice. It is wherein one of the mirrors has a light-scattering surface shape, the other mirror h/as a light-collecting surface shape, and the two mirrors combined have a common focal point on the image generator.

Abstract: The invention is directed to a projection unit for a head-up display comprising an image generator, a mirror and a refractive lens which are arranged in a housing one behind the other in the light propagation direction. The beam path is directed to a windshield. The invention is characterized in that the mirror has a concave reflection surface, and the lens has a free-form surface at least on one of the optically active surfaces (D-U and/or D-O).

Abstract: The present invention is directed to an arrangement by which the image field of the illumination components and irradiation components of ophthalmic instruments for diagnosis and therapy is improved. In the arrangement according to the invention, one or more diffractive optical elements is/are arranged additionally in the illumination beam path for deliberate shaping of the image plane in the eye to be irradiated. These diffractive optical elements can be located on the surface of other optical elements, swiveled into the illumination beam path, and their wavelength changed by filters. The image plane can be adapted to the spherical contour of the eye so that the projected characters and structures have a uniformly high image quality in the center and in the edge area of the eye. The present invention is applicable for variable illumination for diagnosis and treatment of the eye, in particular for irradiation of the eye lens and other parts of the eye such as the cornea or retina.

Abstract: Imaging system for a microscope based on extreme ultraviolet (EUV) radiation. The present invention is directed to a reflective imaging system for an x-ray microscope for examining and object in an object plane, wherein the object is illuminated by rays of a wavelength of less than 100 nm, particularly less than 30 nm, and is imaged in a magnified manner in an image plane. In the imaging system, according to the invention, for a microscope based on extreme ultraviolet (EUV) radiation with wavelengths in the range of less than 100 nm, with a magnification of 0.1× to 1000× and a structural length of less than 5 m, at least one of the imaging optical elements 2 and 3 in the beam path has a diffractive-reflective structure which is arranged on a spherical or plane area and has a non-rotationally symmetric, asymmetric shape. The arrangement according to the invention provides an imaging system which avoids the disadvantages of the prior art and ensures a high imaging quality.

Abstract: Imaging system for a microscope based on extreme ultraviolet (EUV) radiation. The present invention is directed to a reflective imaging system for an x-ray microscope for examining an object in an object plane, wherein the object is illuminated by rays of a wavelength of less than 100 nm, particularly less than 30 nm, and is imaged in a magnified manner in an image plane. In the imaging system, according to the invention, for a microscope based on extreme ultraviolet (EUV) radiation with wavelengths in the range of less than 100 nm, with a magnification of 0.1× to 1000× and a structural length of less than 5 m, at least one of the imaging optical elements 2 and 3 in the beam path has a diffractive-reflective structure which is arranged on a spherical or plane area and has a non-rotationally symmetric, asymmetric shape. The arrangement according to the invention provides an imaging system which avoids the disadvantages of the prior art and ensures a high imaging quality.

Abstract: In an objective, in particular a microscope objective, wherein the objective has a first optics group on the object side with positive refractive power and a second optics group with negative refractive power following the first optics group, and wherein the first optics group contains a plurality of refractive elements, the first optics group contains at least one diffractive element with a refraction-increasing and achromatizing effect.

Abstract: An arrangement for the detection of biomolecular reactions and interactions using the RS screening method and comprises a specimen plate or microtiter plate (PP or MTP), a white light source with subsequently arranged illumination beam path, a splitter plate on which the PP or the MTP is set for generating a detection beam path, and optical means for imaging the measurement beam path and reference beam path on a spatially resolving detector array of a CCD camera which is connected with an evaluating unit or with a computer for determining measurement values.

Abstract: A microscope with an exchangeable intermediate tube that is inserted between the microscope objective and an ocular eyepiece instead of the tube lens and which is adjustable in a defined manner with respect to its height and has relay or transfer optics with an essentially constant intersection length, comprising, in the observation direction, a first lens group with a long focal length, preferably greater than 10 m, and a second lens group with a short focal length whose common focal length corresponds to the focal length of a standard tube lens, preferably approximately 164 mm, wherein the distance between the first and second lens group is adjustable.

Abstract: A process and a device are described for detecting physical, chemical, biological or biochemical reactions and interactions on biochemically or chemically functionalized specimen carriers in the form of layers or films from the spectral reflection after irradiation of the specimens with light of different wavelengths. In so doing, parameters for the nature of the specimens are determined in an economical and highly accurate manner and with a high degree of parallelism in the measurements. According to the process, the specimens are arranged on a substrate plate with a carrier layer of a carrier plate and are irradiated with light.