Abstract: A fan has a fan housing (2) which is formed with a pot-shaped recess (4) and it has an external-rotor drive motor (103) having an internal stator (22) and an external rotor (34), separated from each other by an air gap (52). The internal stator (22) is mounted on a bearing support tube (24) which is connected to a base part (46). The arrangement of bearing support tube (24) and base part (46) form, together with the pot-shaped recess portion (4) of fan housing (2), a substantially fluid-tight annular space (54) enclosing the inner stator (22). A wall (56) defining this annular space (54) extends in the manner of a canned motor through the air gap (52) between inner stator (22) and external rotor (34).

Abstract: A method of hot forming of at least a part of an article is provided. The article includes a material selected from the group consisting of transparent and semitransparent materials. The method includes semi-homogeneously heating at least a part of the article by radiation and forming the heated part of the article.

Abstract: The invention relates to a transparent arrangement for a display device, in particular for an analog and/or digital display, having a fiber-optic arrangement which transmits light from an entry face into an exit face, wherein regions, in particular pixels, of an image field lying in front of the entry face are visible on the exit face of the fiber-optic arrangement, and regions visible on the exit face, in particular pixels are spatially offset relative to the image field at least by an offset V.

Abstract: An illuminable image-conducting optical assembly includes an illuminable image-transporting optical fiber bundle having (i) an inner image-conducting bundle with opposed image-input and image-output faces and (ii) a plurality of illumination conduits disposed peripherally about the image-conducting bundle. The illumination conduits include light-emission ends that combine to define a light-output face. A translucent optics housing includes light-entrance and light-exit ends and an inside surface defining an optics channel for housing at least one optical element.

Abstract: The invention relates to a display device having a fiber-optic plate and a display with an image plane on which the image information of the display is generated, the fiber-optic plate comprising a fiber bundle with a multiplicity of fiber cores extending beside one another, which are enclosed by a cladding material and which transmit light from an entry face of the fiber-optic plate, facing the display, to an exit face of the fiber-optic plate, wherein the entry face of the fiber-optic plate lies further away from the image plane than the lateral dimension of the smallest image information representable by the display.

Abstract: Well plates adaptable for specimen sampling in the biological, chemical and pharmaceutical sciences are fabricated by dissolving fusedly-retained cores from the cladding material of a fused fiber plate to define a capillary plate including first and second faces and a plurality of through-voids into which fluidic samples may be deposited for analysis. Closed-bottom wells are defined by bonding one of the first and second faces to a base plate or by securing into well-sealing positions over the open ends of selected through-voids optical elements, each of which optical elements exhibits a predetermined optical property. Cladding material including reducible ions is exposed to a reducing atmosphere in order to blacken selected regions of a well plate, thereby enhancing sample analysis by reducing such disadvantageous phenomena as autofluorescence.

Abstract: The invention relates to a display device having a fiber-optic plate and a display with an image plane on which the image information of the display is generated, the fiber-optic plate comprising a fiber bundle with a multiplicity of fiber cores extending beside one another, which are enclosed by a cladding material and which transmit light from an entry face of the fiber-optic plate, facing the display, to an exit face of the fiber-optic plate, wherein the entry face of the fiber-optic plate lies further away from the image plane than the lateral dimension of the smallest image information representable by the display.

Abstract: An illuminable image-conducting optical assembly includes an illuminable image-transporting optical fiber bundle having (i) an inner image-conducting bundle with opposed image-input and image-output faces and (ii) a plurality of illumination conduits disposed peripherally about the image-conducting bundle. The illumination conduits include light-emission ends that combine to define a light-output face. A translucent optics housing includes light-entrance and light-exit ends and an inside surface defining an optics channel for housing at least one optical element.

Abstract: A mesh (36) is placed around a bundle (32) of fused glass fibers. The bundle is then immersed in a leaching bath (44). The ends of the bundle are protected from the bath fluid by furrules (34). Some of the glass of the bundle is leached out, so as to provide a flexible fiber bundle.

Abstract: A graded-refractive-index optical fiber is fabricated by providing an elongated core rod of a first material including a concentration of high-refractive-index ions and a cladding tube of a second material including a lower concentration of the high-refractive-index ions present in the core rod material. The core rod is axially introduced into the cladding tube and the core rod and cladding tube are heated and vertically drawn in the furnace of a fiber drawing tower to cause the collapse of the cladding tube about the core rod and the radially outward diffusion of high-refractive-index ions into the cladding tube to yield an optical fiber exhibiting a radially graded refractive index that decreases with displacement from the rod axis. In various implementations, fused image-conducting fiber bundles are fabricated by bundling, heating and drawing a plurality of constituent-GRIN-optical-fiber pre-forms.

Abstract: Well plates adaptable for specimen sampling in the biological, chemical and pharmaceutical sciences are fabricated by dissolving fusedly-retained cores from the cladding material of a fused fiber plate to define a capillary plate including first and second faces and a plurality of through-voids into which fluidic samples may be deposited for analysis. Closed-bottom wells are defined by bonding one of the first and second faces to a base plate or by securing into well-sealing positions over the open ends of selected through-voids optical elements, each of which optical elements exhibits a predetermined optical property. Cladding material including reducible ions is exposed to a reduction atmosphere in order to blacken selected regions of a well plate, thereby enhancing sample analysis by reducing such disadvantageous phenomena as autofluorescence.

Abstract: A leached fiber bundle with the light outlet points positioned as accurately as possible is provided, in which the end faces are not completely fused together, but rather are only fused together at their contact surfaces. The interstices formed are permanently filled with adhesives with the aid of a pressure reduction. To protect the optical fibers from mechanical load, adhesives are introduced into the transition region between the fixed end region and a flexible region. This allows the leached fiber bundles to be produced more economically and also improves their service life.

Abstract: A light-conductive rod element includes a solid rod-shaped body having a side surface extending along a longitudinal rod axis between a first light-input end and a second light-redirecting end. The rod element is fabricated from a material exhibiting a refractive index greater than the refractive index of air in order to facilitate total internal reflection. The light-redirecting end includes at least a first planar face extending along a first plane definable by a first normal that is pitched with respect to the rod axis such that light propagating by total internal reflection between the first and second ends that impinges on the interface defined by the rod-element material and air at the first planar face is redirected by at least one of (i) reflection and (ii) refraction. Refracted components of light exit the rod body through the first planar face and reflected components of light exit the rod body through the side surface.

Abstract: Methods of fabricating extra-mural absorption elements adapted for incorporation in an image-conducting optical fiber array include fabricating various constituent components to be included in an optical fiber bundle from one or more reducible-ion-containing glasses. Various components fabricated from a reducible-ion-containing glass are selectively exposed to a reducing atmosphere such that they are reduction-blackened prior to at least one heating and drawing step relative to the bundle into which they are to be fusedly incorporated. Such “pre-blackened” components function as extra-mural absorption media throughout the length of an image-conducting optical fiber array and alternatively include fiber claddings and substitutional and interstitial extra-mural absorption elements.

Abstract: The invention relates to an optical lowpass filter that has a plurality of light guiding optical fibers, and to a method for producing such an optical lowpass filter.

Abstract: A method of mounting electro-optical devices on an optical element using an auxiliary substrate is provided herein. Electro-optical fiber optic assemblies are also described herein.

Abstract: A leached fiber bundle with the light outlet points positioned as accurately as possible is provided, in which the end faces are not completely fused together, but rather are only fused together at their contact surfaces. The interstices formed are permanently filled with adhesives with the aid of a pressure reduction. To protect the optical fibers from mechanical load, adhesives are introduced into the transition region between the fixed end region and a flexible region. This allows the leached fiber bundles to be produced more economically and also improves their service life.

Abstract: A leached fiber bundle with the light outlet points positioned as accurately as possible is provided, in which the end faces are not completely fused together, but rather are only fused together at their contact surfaces. The interstices formed are permanently filled with adhesives with the aid of a pressure reduction. To protect the optical fibers from mechanical load, adhesives are introduced into the transition region between the fixed end region and a flexible region. This allows the leached fiber bundles to be produced more economically and also improves their service life.

Abstract: The invention relates to an optical lowpass filter that has a plurality of light guiding optical fibers, and to a method for producing such an optical lowpass filter.

Abstract: A method of hot forming of at least a part of an article is provided. The article includes a material selected from the group consisting of transparent and semitransparent materials. The method includes semi-homogeneously heating at least a part of the article by radiation and forming the heated part of the article.