80 results about "Annular aperture" patented technology

Functional yet decorative luminaires intended to create distinctive environments within specific areas of a space in which one or more luminaires are used, the luminaires of the invention visually tie to architectural elements of the space by providing a customizable glow of color surrounding a typically white light that acts to illuminate the space functionally. A downlighting luminaire configured according to the invention as one example is typically configured to utilize two separate reflectors, usually reflectors having concave reflective surfaces and being mounted concentrically within a housing, an inner reflector directing light centrally through an aperture of the luminaire with the light so directed typically being white light useful for illumination intended to facilitate usual activities within the space. An outer reflector is spaced from the inner reflector with a transparent or translucent disc, such as an acrylic plastic disc, being held between the reflectors, the disc having a colored film adhered preferably to lower surfaces thereof to cause portions of the light emanating from lamping disposed above the disc to be colored by passage through the colored film, the disc being readily removable and replaced with a disc having a different color adhered thereto so that a particular luminaire can be customized as to color selection depending on user choice at any given time. An annulus of glowing, colored light exits the periphery of the luminaire aperture outwardly of the inner cone, the reflective surfaces of the outer reflector directing at least portions of the colored light passing through the disc and colored film through an annular aperture of the luminaire, thereby creating a distinctive appearance of a central, white shaft of light emanating from the inner reflector and a glowing annulus of colored light surrounding the white shaft of light. Peripheral edges of the inner reflector can be positioned flushly with the luminaire aperture or can extend to one or more positions outwardly of the luminaire aperture and thus “proud” of a ceiling or the like within which the luminaire is recessed, surface-mounted or pendently mounted inter alia.

Multifocal and single focus lenses are defined by nonconical aspheric optical surfaces. Various alternative surface shapes provide one or more vision regions bounded by optical steps. Each optical step has rapidly and smoothly changing power in the radial direction which creates an induced aperture through which the cortical elements of the human vision system are induced to concentrate. The induced aperture results in increased clarity and enhanced vision. In various configurations, the induced aperture decreases spherical aberration to further enhance vision. To increase correction intensity at one or more powers, redundant power regions are provided in repeated optical steps or annular apertures. In several embodiments, the redundant power regions create multiple induced apertures at one or more optical powers directed at one or more vision distances.

A system for transferring torque between a pair of independently, concurrently rotating shafts of a turbofan engine includes a magnetic gearbox. The magnetic gearbox has a first ring structure, a second ring structure and an intermediate ring structure. Each ring structure has an annular aperture therethrough and a plurality of permanent magnets embedded therein. The intermediate ring structure is disposed between the first and the second ring structures. Each ring structure is coaxially concentric with, and independently rotatable with respect to the remaining ring structures. The first and second ring structures are each coupled to separate ones of the rotating engine shafts, and the intermediate ring is operable to transfer torque between the pair of shafts. Preferably, the intermediate ring structure is coupled to a rotating machine. The rotating machine has a controller, and is operable for adjusting a ratio of torque transferred between the pair of shafts.

A coupling apparatus having coupling body with a mechanical latch assembly. The mechanical latch assembly includes a modified latch plate. The latch plate defines a main portion having a top end and a bottom end and includes an annular aperture disposed between the top and bottom ends. A lever portion is disposed proximate the top end. The lever portion enables the latch plate to move within a coupling body, so as to operate the mechanical latch assembly in a released position and a latched position. A raised edge is disposed about a portion of the annular aperture. The raised edge is disposed proximate the bottom end and extends radially inward of the inner edge defined by the annular aperture. A pin opening is disposed proximate the bottom end opposite of the lever portion. The pin opening is positioned radially outward from the annular aperture, and defines a separate enclosed edge.

A self-checking anchor bolt suspension assembly includes an array of suspension segments each including equally sized openings distributed in a spaced relationship therein for engaging in suspension resilient tubular caps provided with annular tapered cavities communicating through annular apertures at the lower ends thereof. The aperture size and the cavity taper are selected so that the threaded shank of an anchor bolt of only a singular dimensional increment is receivable and resiliently grasped therein and the caps are each color coded in accordance with the shank size of the bolt. In this manner the color coding provides a quick visual assurance that only the properly sized anchor bolts are deployed for immersion into the poured concrete.

Systems for highly efficient, in-vivo collection of modulated infra-red light are presented. Specifically, these devices are arranged in an important format with a view to integration with a wristwatch or other wearable device. An optical aperture of large surface area, specially distributed in an annular ring, receives radiation having been modulated in a tissue test site by blood flow. Radiation received about the annular aperture is redirected by a blazed grating or similar optical element at near perpendicular angles, into a radially distributed, condensing light pipe array and further toward a common axis. Radiation converges on the axis, thus increasing the energy density of the collected signal, before it is further directed via a conic element to a detector such as a photodiode. In some versions, these highly specialized optical paths may be formed into a single element of inexpensive plastic or other rigid substrate.

Liquid crystal cell process for in-plane switching mode liquid crystal display devices. A process for forming an in-plane switching liquid crystal display device includes: defining a first liquid crystal cell region having a first size and a second liquid crystal cell region having a second size on a first bare glass, wherein the first bare glass Above, the first longer side of the first liquid crystal cell area is arranged along the first direction, and the second longer side of the second liquid crystal cell area is arranged along the second direction; in the first and second liquid crystal cell areas of the first bare glass forming a plurality of array elements including a plurality of thin film transistors, a plurality of common electrodes and a plurality of pixel electrodes, wherein the common electrodes and pixel electrodes define a plurality of concentric annular holes; grinding the first array element having the plurality of array elements along a first grinding direction a bare glass; forming a color filter layer on a second bare glass in which a liquid crystal cell region corresponding in size to the first and second liquid crystal cell regions is defined; and in a direction opposite to the first grinding direction The second grinding direction grinds the second bare glass with the color filter.

Disclosed is an etching termination detection method whereby the position of termination of etching of an SOI substrate can be accurately detected irrespective of the aperture width. In a method of etching termination detection when etching an annular aperture wherein, on an SOI substrate where a silicon layer is arranged on an insulating layer, the time point at which the aforementioned insulating layer on the aforementioned silicon layer has been reached is detected, a first electrode layer is formed on the surface of an island region surrounded by the aperture formed by the aforementioned etching, an etching termination detection region is formed by forming a second electrode layer in a region outside the insulating region, the electrical resistance between the aforementioned first electrode layer and the aforementioned second electrode layer is measured, and the time point where the etching termination position has been reached is identified when a preset threshold value of the electrical resistance thereof is exceeded.

This invention relates to a process and an extruder nozzle for extruding tubular products, particularly blown plastic foil hoses (T). This process comprises the steps of feeding a pressurized material into an extruder nozzle through an inlet, and forcing this material flow through a duct formed between an outer and an inner nozzle components, then shaping the tubular product by pressing the material flow through an annular aperture at the duct end. The essence lies in that the material flow entering the extruder nozzle is distributed first by feeding into an annular expansion chamber, the cross-section of which is selected much greater, that of the inlet. When the expansion chamber has been completely filled up by the material whose pressure has become higher than the flow resistance of an homogenizing ring channel having a cross-section narrowed to and connected to the annular expansion chamber then in the homogenizing ring channel the material flow is forced to move in cross direction to the entering direction thereof, and it is homogenized by the relative rotation of surfaces partly delimiting at least the homogenizing ring channel. The material flow is led to a drawing aperture by way of a helical forced movement.