Did You Know...
...that several people are credited with the invention of the flush toilet? Most people have heard of Thomas Crapper (1837-1910), the sanitary engineer who invented the valve-and-siphon arrangement that made the modern toilet possible. Another claimant to "the throne" was British inventor Alexander Cumming who patented a toilet in 1775. Then there's a nameless Minoan (a native of ancient Crete) who lived 4,000 years ago who supposedly was ahead of his time and created the first flush toilet!
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| Number | Title | Issue Date |
| 7400342 | Optical observation apparatus with video device An optical observation apparatus includes: an optical system which produces an image of an object being observed and a video device (7) for recording the image and producing an image signal. The video device (7) includes a first memory (71) for ... | 07/15/2008 |
| 7335223 | Apparatus for the treatment of body tissue An apparatus for treating body tissue includes a treatment instrument 1 for treating the body tissue and a measuring unit 3 for measuring the actual value of a parameter of the body tissue at at least one measuring point. An identifier 4 is conn... | 02/26/2008 |
| 7276718 | System and method for determining a position or/and orientation of two objects relative to each other as well as beam guiding arrangement, interferometer arrangement and device for changing an optical path length for use in such a system and method A system and a method for determining a position of two objects relative to each other is suggested, comprising: a source 43 of coherent radiation, a beam guidance for providing a measuring branch 49 for a measuring beam, which has an optical path leng... | 10/02/2007 |
| 6859515 | Illumination system, particularly for EUV lithography There is provided an illumination system for light having wavelengths ≦193 nm. The system includes (a) a first raster element for receiving a first diverging portion of the light and directing a first beam of the light, (b) a second raster element for receiving a ... | 02/22/2005 |
| 6829107 | Device for mounting an optical element, for example a lens element in a lens A device for mounting an optical element (1), for example for a lens element in a lens, especially in an exposure lens (2) in micro lithography, is provided with the following features: the optical element (1) is provided in its edge zone... | 12/07/2004 |
| 6788465 | Littrow grating and use of a littrow grating A Littrow grating (1) comprises a multiplicity of parallel diffraction structures (3) succeeding one another periodically. The latter are arranged on a support (2) defining a base area (4). A diffraction structure (3) comprises a b... | 09/07/2004 |
| 6781668 | Optical arrangement An optical arrangement, in particular a microlithographic projection printing installation, has in particular a slot-shaped image field or rotationally non-symmetrical illumination. An optical element (5) is therefore acted upon in a rotationally non-symmetri... | 08/24/2004 |
| 6768600 | Temperature compensation apparatus for thermally loaded bodies of low thermal conductivity In a temperature compensation apparatus for thermally loaded bodies made from materials of low specific thermal conductivity, a heat-distributing device having one or more heat-distributing bodies is adapted to surfaces of the thermally loaded body such that there r... | 07/27/2004 |
| 6741948 | Method and apparatus for fixing a location A method is disclosed for fixing at least one location in an examination field (9) with respect to a coordinate system (13). The method includes determining, in response to a request (65), coordinates of a first location (59) as a first c... | 05/25/2004 |
| 6709106 | Method for the manufacture of a spectacle lens, spectacle lens and spectacle lens family This disclosure relates to a spectacle lens family and methods of manufacturing the same, which in one embodiment has a multifocal property such that along a line between a far-vision reference point and a near-vision reference point spaced apart therefrom a mean sp... | 03/23/2004 |
| 6603615 | Precision positioning apparatus for positioning a component especially an optical component An apparatus for the precision positioning of an optical component a group of lenses or mirror, in the axial direction and/or for tilting the component and has an axial adjustment device and/or a tilting device. The axial adjustment device has an adjustin... | 08/05/2003 |
| 6600602 | Diffraction grating and uses of a diffraction grating A diffraction grating (1) has a multiplicity of parallel diffraction structures succeeding one another periodically. The latter are arranged on a support (2) and each incorporate a slat (3) extending from a base area (4) of the support (2). Said slat has ... | 07/29/2003 |
| 6598972 | Stereomicroscopy system A stereomicroscopy system is disclosed for viewing an object and/or an intermediate image produced of an object, in microsurgery. The stereomicroscopy system includes an objective system with an object plane for positioning the object and/or the intermedi... | 07/29/2003 |
| 6597763 | Spectrometer arrangement A spectrometer arrangement is disclosed for the determination of a radiation wavelength of radiation emitted from a radiation source to be measured. The arrangement includes a diffraction grating on which the radiation of the radiation source to be measur... | 07/22/2003 |
| 6580570 | Mounting apparatus for an optical element In the case of a mounting apparatus, an optical element having an inner mount and an outer mount, in particular a lens in a projection lens system for semiconductor lithography, the inner mount is connected to the outer mount via three circumferentially d... | 06/17/2003 |
| 6552862 | Mounting device for an optical element A mounting device for an optical element in an assembly has a support member 3 with two or more gear elements 1. The support member 3 is connected, on the one hand, to an external mounting structure 30 and, via base points 2, to the gear elements 1. Via t... | 04/22/2003 |
| 6535274 | Projection exposure device A projection exposure device, in particular for micro-lithography, serves to produce an image of an object in an image plane positioned in an object plane. This happens with the aid of a light source emitting projection light and illumination optics posit... | 03/18/2003 |
| 6535273 | Microlithographic illumination system with depolarizer An illumination system for microlithography, has an excimer laser with an emission wavelength, a beam expanding system, a light mixer system and an illumination plane. In the system, an optical element made of a double refracting material is arranged in a... | 03/18/2003 |
| 6523796 | Pivot mounting assembly A pivot mounting assembly is provided including a pivot arm (5) hinged to a pivot base (3) for mounting a load in a vertically adjustable manner. A first force-providing device (13) is hinged with its first operative end to the pivot arm and is supported ... | 02/25/2003 |
| 6521877 | Optical arrangement having improved temperature distribution within an optical element An optical arrangement, in particular a microlithographic projection printing installation, has in particular a slot-shaped image field or rotationally non-symmetrical illumination. A refractive optical element, e.g. a lens (2), is heated by the rotationa... | 02/18/2003 |
| 6522484 | Projection objective A projection objective, particularly for microlithography at 248 nm or 193 nm has, after two bulges and two waists, a pronounced lens arrangement that preferably contains a further waist and the system diaphragm (AS). This is markedly set back from the ne... | 02/18/2003 |
| 6522392 | Optical systems and methods of compensating rotationally non-symmetrical image defects in an optical system An optical system, in particular a microlithographic projection printing installation, has in particular a slot-shaped image field or rotationally non-symmetrical illumination. The system comprises a light source (30) as well as at least one optical eleme... | 02/18/2003 |
| 6515739 | Apparatus and process for spatially resolved refractive power determination Apparatus for the spatially resolved determination of the refractive power distribution of an optical element, with a light source unit for illuminating the optical element with an extended pencil of rays, includes a first multi hole screen for the produc... | 02/04/2003 |
| 6504597 | Optical arrangement An optical arrangement, in particular a microlithographic projection printing installation, has in particular a slot-shaped image field or rotationally non-symmetrical illumination. An optical element (1) is therefore acted upon in a rotationally non-symm... | 01/07/2003 |
| 6503383 | Galvanoplastic optical mounting An optical mounting for an optical component includes an inner, preferably multi-part, portion that abuts the optical component and an outer frame, which are connected together by a plurality of spring hinge beams. The spring hinge beams and other portion... | 01/07/2003 |
| 6496306 | Catadioptric optical system and exposure apparatus having the same A projection exposure lens system has an object side catadioptric system, and intermediate image and a refractive lens system. The refractive lens system from its intermediate image side and in the direction of its image plane has a first lens group of po... | 12/17/2002 |
| 6473239 | Imaging system with a cylindrical lens array The invention relates to an imaging system for optical automatic analysers, especially fluorescence readers. On the sample side, the imaging system contains a cylindrical lens array and a prism array, which is arranged upstream of the cylindrical lens arr... | 10/29/2002 |
| 6473119 | Photogrammetic camera A photogrammetric camera for airborne or spaceborne terrain recording includes several electro-optical sensors that can be arranged at a distance from each other in the flight direction. The electro-optical sensors scan the overflown terrain and record ea... | 10/29/2002 |
| 6466382 | Optical arrangement An optical arrangement, in particular a projection exposure system for microlithography, has, in particular, a slit-shaped image field or a non-rotational-symmetric illumination. As a result, an optical element (101) is exposed in a non-rotational-symmetr... | 10/15/2002 |
| 6466380 | Iris diaphragm An iris diaphragm, in particular for an exposure lens in semiconductor lithography, is provided with a diaphragm base (2) and a grooved ring (1) which can be rotated relative to one another, having a multiplicity of leaves (4) which in each case are mount... | 10/15/2002 |
| 6453005 | SiO2-coated mirror substrate for EUV Mirror substrate consisting of crystal, especially silicon crystal, on which an amorphous layer, especially a quartz glass layer, is applied.... | 09/17/2002 |
| 6445442 | Projection-microlithographic device An illuminating device of a projection-microlithographic device includes a light source, an objective, and a device which produces a particular image field configuration. The device has fields which, in the direction of scanning movement, are separated at... | 09/03/2002 |
| 6437353 | Particle-optical apparatus and process for the particle-optical production of microstructures The invention relates to a particle-optical apparatus for particle-optical mask projection. According to the invention, an energy filter is used, by which particles which are inelastically scattered in a mask plane are separated from particles which are e... | 08/20/2002 |
| 6429897 | Confocal microscope with a motorized scanning table A confocal microscope has a motorized scanning table for moving the sample perpendicularly to the optical axis of the microscope. The object is illuminated simultaneously at many places by means of a light source array. The light reflected or scattered at... | 08/06/2002 |
| 6430433 | Apparatus for image-supported treatment of a work object In an apparatus for the image-supported treatment of a work object with a work object data unit and a display unit for the display of work object data from the work object data unit, the display unit makes possible a simultaneous visual sensing, with free... | 08/06/2002 |
| 6419360 | Scanner A scanner for optical coherence tomography for linear scanning of an object with electromagnetic radiation, in which the scanning direction runs transversely of the direction of propagation of the electromagnetic radiation, includes a deflecting element r... | 07/16/2002 |
| 6408530 | Coordinate measuring instrument or machining equipment A coordinate measuring instrument or machining equipment has a component that is mounted at its one end, movably on two guides, by a component foot. In order to be able to compensate rotation errors of the component, the component foot is arranged such th... | 06/25/2002 |
| 6392825 | Assembly comprising an optical element and a mount An assembly is provided with a mount (1)and an optical element (7). The optical element (7) is connected via elastic connecting elements directly or via one or more intermediate elements to the mount (1). The connecting elements have at least one membrane... | 05/21/2002 |
| 6392796 | Changeover system for optical components The invention relates to a changeover system for optical components such as filters, reflectors, polarizers and lens systems in optical equipment, particularly microscopes, a so-called reflector revolving nosepiece. The elements carrying the optical compo... | 05/21/2002 |
| 6392824 | Soldering process for optical materials to metal mountings, and mounted assemblies An assembly includes a part made of transparent material, in particular, quartz glass or calcium fluoride, and a metal part soldered. The following layer structure is present in the region of a solder joint: a transparent material of the transparent mater... | 05/21/2002 |
