Abstract: Methods, systems, and computer-readable media for determining a chance of success for a prospect including two or more segments. The method may include receiving seismic data indicative of a plurality of anomalies in a prospect. The prospect may include a plurality of segments. Prior probabilities of success and failure scenarios may be computed for at least one of the segments of the prospect. Likelihoods of the anomalies may be determined given the success and failure scenarios for the at least one of the segments. At least two of the segments may be classified into a direct fluid indicator dependency group. A degree of correlation may be determined between the anomalies for the direct fluid indicator dependency group. A posterior chance of success may be determined for the prospect based at least in part on the degree of correlation between the anomalies.

Abstract: A system for tracking a drill bit. The system uses a self-propelled autonomous receiver. The receiver has an antenna assembly, a processor, and a propulsion system. The antenna assembly detects the magnetic field from an underground transmitter and generates an antenna signal. The processor is programmed to receive the antenna signal and generate a command signal. The propulsion system receives the command signal and moves the receiver to a position above the transmitter. Once in the desired position, the antenna assembly measures the magnetic field to determine the location of the drill bit along borepath.

Abstract: Various embodiments are described that relate to a detector. The detector can include a loop functioning at a high frequency that emits a magnetic field. The magnetic field can be retrieved and a comparison can be made between the emitted magnetic field and the retrieved magnetic field. If there is substantially little difference between the emitted and retrieved field, then a determination can be that no object is present. Conversely, if there is a substantial difference between the emitted and retrieved field, then the determination can be that an object is present and thus the object is detected. If the object is present, the returned magnetic field can be further analyzed to determine the type of object that is detected.

Abstract: In some embodiments, an apparatus and a system, as well as a method and an article, may operate to determine apparent resistivity values of the formation associated with each of several layers comprising a set of at least three layers; to determine a resistivity correction for a selected one of the layers based on at least one of the apparent resistivity value of the selected layer, the width of the selected layer, and the apparent resistivity values in layers of the set located above and below the selected layer in the set within which the apparent resistivity value was obtained; and to generate a dip corrected resistivity value associated with the selected layer, based on the resistivity correction. Methods described herein may operate without using inversion-based or filter-based methods of dip correction. Additional apparatus, systems, and methods are disclosed.

Abstract: The present disclosure introduces a downhole tool conveyable within a tubular within a wellbore extending into a subterranean formation. The downhole tool includes a body and a member having a first end and a second end, wherein the first end is rotatably coupled to the body. A spectrometry sensor is disposed proximate the second end of the member. Embodiments also include a fluid separating component shaped such that a heavier fluid from the fluid flowing along the downhole tool is drawn away from the spectrometry window to reduce window contamination from fluid droplets, particles, and/or liquids.

Abstract: Various embodiments include apparatus and methods to acquire echo signals associated with operation of a nuclear magnetic resonance logging tool to evaluate a formation and process the echo signals taking into account motion of the nuclear magnetic resonance logging tool. Coefficients may 5 be generated that are correlated to porosity of the formation. Additional apparatus, systems, and methods are disclosed.

Abstract: An integrated stratigraphic method for determining total organic carbon (TOC) in a rock formation is provided, The method includes performing a geochemical analysis method to create a geochemical dataset; performing a chronostratigraphic method to create a chronostratigraphic dataset; performing a graphic correlation of the chronostratigaphic dataset from at least one location in the rock formation; determining a sequence stratigraphic model based on the graphic correlation; and generating a palaeogeographic reconstruction at one or more time periods by integrating the sequence stratigraphic model with the geochemical dataset to construct a predictive depositional model and determine a location and areal extent of total organic carbon within the rock formation,

Abstract: Methods and devices for inspecting liquid are disclosed. According to the method, it is firstly determined whether the package of the liquid is transparent, semi-transparent, or opaque; in a case that the package of the liquid is transparent or semi-transparent, Raman spectrum analysis is implemented by a Raman spectrum module on the inspected liquid to judge whether the inspected liquid is dangerous or is suspected; and in a case that the package of the inspected liquid is opaque, the inspected liquid are inspected by using an X-ray dual-energy scanning technology to judge whether the inspected liquid is dangerous or is suspected. The above solution has advantages that the inspection speed is high, the material can be recognized, it is suitable for various packing materials with various shapes, the accuracy of the inspection result is high or the like.

Abstract: Method and system is described to exploration and development hydrocarbon resources. The method involves operations for exploring and developing hydrocarbons with one or more unmanned vehicles. The unmanned vehicles are used to obtain one or more samples that may be used to identify hydrocarbon systems, such as hydrocarbon seeps.

Abstract: Method and system is described for marine surveying. The method involves operations for exploring and developing hydrocarbons with one or more unmanned vehicles. The unmanned vehicles are used to perform marine surveying and to obtain one or more samples that may be used to identify chemical, hydrocarbon and/or biologic information, which may be used for environmental monitoring of bodies of water.

Abstract: A person detector detects a person in an area facing one door surface. An open/close detector detects whether the door is in an open or closed state. When a detected state of the door switches from a closed state to an open state, an open-state person detection information recorder records whether the person detector is detecting a person or not. When the state of the door detected by the open and close detection sensor switches from the open state to the closed state, a closed-state person detection information recorder records whether the person detector is detecting a person or not. A room entry and exit detector detects that there occurs an entry into the room and there occurs an exit out of the room on the basis of a content recorded by the open-state person detection information recorder and the closed-state person detection information recorder.

Abstract: An integrated acoustic and induction logging tool enables efficient logging operations and reduces logging string length. In some of the disclosed embodiments, an integrated acoustic and induction logging tool includes a mandrel compatible with acoustic logging operations and induction logging operations. The integrated acoustic and induction logging tool also includes an acoustic logging transducer set and an induction logging coil set, where a plurality of transducers of the acoustic logging transducer set are interspersed among a plurality of coils of the induction logging coil set along the mandrel. A related assembly method includes obtaining a mandrel compatible with acoustic logging and induction logging. The method also includes assembling an acoustic logging transducer set and an induction logging coil set along the mandrel, where a plurality of transducers of the acoustic logging transducer set are interspersed among a plurality of coils of the induction logging coil set along the mandrel.

Abstract: Methods, computing systems, and computer-readable media for multi-scale modeling. The method includes determining a first matrix for a plurality of fine cells of a model based at least in part on a physical property value represented by respective fine cells, identifying one or more overlapped cells of the plurality of fine cells that are part of at least two of the plurality of subdomains, and determining a second matrix. Determining the second matrix includes determining an intermediate product by multiplying the first matrix by a prolongation matrix, which includes predicting a row of zeros in the intermediate product for the plurality of fine cells that are not the one or more overlapped cells and are not part of the at least two of the plurality of subdomains that include the one or more overlapped cells. Determining the second matrix also includes multiplying the intermediate product by a restriction matrix.

Abstract: A portable communication device, including a location detection unit configured to determine the location of the device, a lightning detection unit configured to determine a distance between the lightning strike and the device, and a radio frequency circuit configured to output, via a communication network, data indicative of the location of the device and the distance between the lightning strike and the device. A system, including a lightning detection database and an analysis unit configured to receive, from the device via the communication network, data indicative of the location of the device and the distance between a lightning strike and the device, determine the location of the lightning strike based in part on the distance from the lightning strike to the location of the device, and store the location of the lightning strike in the lightning detection database.

Abstract: A polarizing plate includes a polarizer and a polyester film formed on at least one surface of the polarizer. The polyester film includes a polyester base film and a primer layer formed on at least one surface of the polyester base film. The polyester film contains about 0.1 wt % to about 5 wt % of a UV absorbent. In addition, a liquid crystal display includes the polarizing plate. A method of fabricating a polarizing plate includes preparing a multilayer film containing about 0.1 wt % to about 5 wt % of a UV absorbent, stretching the multilayer film to about 2 to about 10 times its initial length in a transverse direction (TD) to prepare a polyester film, and attaching the polyester film to at least one surface of a polarizer. The multilayer film comprises a polyester base film and a primer layer on at least one surface of the polyester base film.

Abstract: There is provided an optical film including an ultraviolet light absorbent having a first peak with a maximum absorption coefficient of 0.07 to 0.10 phr?1?m?1 in a wavelength band of 290 to 320 nm and a second peak with a maximum absorption coefficient of 0.11 to 0.16 phr?1?m?1 in a wavelength band of 330 to 400 nm, and acrylic resin, wherein the content of the ultraviolet light absorbent is 0.3 to 1.0 parts by weight with respect to 100 parts by weight of the acrylic resin, and a polarizing plate including the same.

Abstract: Provided are a lenticular lens sheet capable of simultaneously achieving an improvement in visibility due to improving bonding accuracy, and low cost due to shape stabilization during processing the lens, a display apparatus and an electronic equipment including the same. The lenticular lens sheet includes a plurality of cylindrical lenses which extend in a direction parallel to each other; and an alignment mark which has two cylindrical lenses among the plurality of cylindrical lenses, a flat part disposed between the two cylindrical lenses, and a structure which is disposed on the flat part and extends between the two cylindrical lenses.

Abstract: In order to manufacture a lens array substrate including a multistage lens array which is formed on a translucent substrate, a first lens layer, a first translucent layer, a second lens layer, and a second translucent layer are stacked in order on a mother substrate. At the same time, a first metal layer is formed between the first lens layer and the first translucent layer, and in the removing of the first metal layer, the first metal layer is removed from a position overlapping with at least the center of a concavity in a plane view, and remains at least at an end portion of the mother substrate as a first buffer layer.

Abstract: When it comes to configuring the lens array substrate on which a multistage lens array is formed, a first concavity which is formed of the concave surface is formed on a first surface which is formed of a substrate surface of one of several translucent substrates. In addition, on the substrate surface of one of the translucent substrates, a first lens layer, a first translucent layer, a second lens layer, a second translucent layer, a translucent protective layer, and a common electrode are stacked in order. The first translucent layer has the same refractive index as that of the first lens layer and the second lens layer. In addition, a refractive index of the protective layer is within a range between the refractive index of the second translucent layer and the refractive index of the common electrode.

Abstract: The present invention provides a display substrate including a plurality of pixel units. Wherein, the plurality of pixel units include a plurality of oblique pixel units, and length directions of the plurality of oblique pixel units are oblique relative to a horizontal direction. The present invention further provides a display panel and a stereoscopic display device. When stereoscopic display is performed using the display panel according to the present invention, the resolutions of each parallax image in both a length direction and a width direction of the display panel decrease, i.e., the problem that the resolution of a single-eye image decreasing only in one direction when stereoscopic display is performed is avoided, thereby improving the display effect.

Abstract: An optical film having a first surface and a second surface is provided. The second surface is adjacent to the first surface and has a first area connected to the first surface, a second area connected to the first area, and a third area connected to the second area. The optical film includes a first micro-structure disposed on the first surface and a second micro-structure disposed in the first area and the second area. The first micro-structure includes a plurality of bubble structures. The second micro-structure includes a plurality of protrusions and recesses.

Abstract: Provided are a composition for light diffusion film which has satisfactory incident angle dependency in transmission and diffusion of light, does not easily undergo yellowing even if exposed to ultraviolet radiation for a long time, and has excellent weather resistance, and a light diffusion film formed by curing the composition.

Abstract: This light diffusion member includes: a substrate having light transmissivity; a plurality of light shielding layers formed on one face of the substrate; and light diffusion portions formed on the one face of the substrate at regions other than the regions where the light shielding layers have been formed. The light diffusion portions have a light-emitting end surface coming into contact with the substrate, a light incident end surface which faces the light-emitting end surface and has a larger area than the area of the light-emitting end surface, and a reflecting face coming into contact with the light-emitting end surface and the light incident end surface, and reflecting light entering from the light incident end surface. The height from the light incident end surface to the light-emitting end surface of the light diffusion portion is greater than the thickness of the light shielding layers.

Abstract: A micromirror array according to the present invention is a corner reflector type micromirror array capable of projecting a mirror image of an object to be projected sharply with high luminance. The micromirror array includes a substrate, and a plurality of unit optical elements (quadrangular prisms) formed in an array on the substrate. Each of the unit optical elements is of a protruding or recessed shape perpendicular to the surface of the substrate. The unit optical elements has two side surfaces orthogonal to each other on opposite sides of a corner of the side surfaces, and the two side surfaces are light reflecting surfaces. Each of the light reflecting surfaces is of a rectangular shape such that the ratio of the vertical length thereof as measured in a substrate thickness direction to the horizontal width thereof as measured in a substrate surface direction is not less than 1.5.

Abstract: Disclosed is a dual aperture camera which includes a dual band filter and a CMOS image sensor (CIS). The dual band filter is adapted to filter light signals to receive a light signal of a first wavelength range and receive a light signal of a second wavelength range through a pin hole included therein. The CIS is adapted to process the light signal of the first wavelength range and the light signal of the second wavelength range received through the dual band filter.

Abstract: A color filter and a fabricating method thereof, and a display apparatus are provided. The color filter includes: at least four pixel units, and each pixel unit includes a color filter layer, and the four pixel units are a first pixel unit, a second pixel unit, a third pixel unit and a fourth pixel unit, respectively. A first color filter layer is formed in the first pixel unit, a second color filter layer is formed in the second pixel unit, a third color filter layer is formed in the third pixel unit, a fourth color filter layer is formed in the fourth pixel unit, and the fourth color filter layer is formed by stacking any two materials of the first, second and third color filter layers.

Abstract: Provided is an infrared cut filter including: an infrared absorbing layer of a transparent resin containing an infrared absorber; and a selected wavelength cut layer stacked on the infrared absorbing layer, wherein the following requirements are satisfied. (i) In a spectral transmittance curve for an incident angle of 0°, an average transmittance in a 450-600 nm range is 80% or more, a transmittance in a 700-1200 nm range is 2.0% or less, and D0 represented by the following expression is less than 0.04. D0 (%/nm)=(Tmax·0?Tmin·0)/(?(Tmax·0)??(Tmin·0)) (ii) wherein a spectrum transmittance curve for an incident angle of 30°, an average transmittance in the 450 to 600 nm range is 80% or more, a transmittance in the 700-1200 nm range is 2.0% or less, and D30 represented by the following expression is less than 0.04.

Abstract: There is provided a method of manufacturing a thin polarizing plate including: forming a film laminate by attaching a non-stretched polyvinyl alcohol (PVA)-based film to a non-stretched base film, using attractive force therebetween or using an adhesive; stretching the film laminate; attaching a first protective film to the PVA-based film of the stretched film laminate; and separating the PVA-based film having the first protective film attached thereto from the base film.

Abstract: A polarization plate includes a polarizer having polarization performance; a first protective film bonded to one surface of the polarizer through an adhesive layer 1; and a second protective film bonded to the other surface of the polarizer through an adhesive layer 2, in which a modulus of elasticity of the first protective film at 25° C. and relative humidity of 60% in an absorption axis direction of the polarizer is greater than or equal to 1.0 GPa and less than 4.0 GPa, a ratio of the modulus of elasticity of the first protective film at 25° C. and relative humidity of 60% in the absorption axis direction of the polarizer to a modulus of elasticity of the first protective film at 25° C. and relative humidity of 60% in a direction orthogonal to the absorption axis of the polarizer is less than or equal to 0.8, a modulus of elasticity of the second protective film at 25° C. and relative humidity of 60% in the absorption axis direction of the polarizer is greater than or equal to 2.0 GPa and less than 5.

Abstract: An array of nanowires with a period smaller then 150 nm can be used for applications such as an optical polarizer. A hard nanomask can be used to manufacture such structures. This nanomask includes a substantially periodic array of substantially parallel elongated elements having a wavelike cross-section. The fabrication method of the nanomask may be contactless and uses ion beams.

Abstract: A device having a light guiding wire set equipped with a detachable lighting source includes a main body and a light guiding wire set equipped with a detachable lighting source. The light guiding wire set has an illuminating apparatus, a detachable connecting device and at least one light guiding wire. When the illuminating apparatus connects with the detachable connecting device, the light provided by the illuminating apparatus is transmitted via the light guiding wire to achieve the effects of displaying, guiding, alerting, illuminating or decorating.

Abstract: To provide a lateral light emitting device that can prevent coupling efficiency in a fused portion of a rod lens and a prism from being deteriorated, can set an outside diameter extremely small, and set the distance to a beam waist long. A lateral light emitting device includes an optical fiber 2, a rod lens 3, one end of which is fused to the end surface of the optical fiber 3, and a prism 4 fused to the other end of the rod lens. The prism has a base shape obtained by cutting a part of the circumference of a cylinder and forming a flat emission surface 4c parallel to an axial line. In a fused portion of the rod lens and the prism, the outside diameter of a fused end surface of the rod lens is equal to or smaller than the smallest diameter of a fused end surface of the prism. The fused end surface of the rod lens does not protrude from the fused end surface of the prism. A center O1 of the fused end surface of the rod lens and a center O2 of a circular arc of the fused end surface of the prism are offset.

Abstract: A backlight includes a plate light, guide to guide light, a light source to produce light, and a collimating reflector to substantially collimate the produced light. The collimating reflector also is to direct that collimated light into the plate light guide as guided light of the plate light guide. A portion of the guided light in the backlight is to be emitted from a surface of the backlight as emitted light.

Abstract: A backlight unit includes at least one light source configured to emit light and a light guide plate including a light incident surface and a light emitting emitting surface. The light from the light source is incident on the light incident surface and the incident light is emitted through the light emitting surface. A wavelength conversion unit is disposed between the light source and the light incident surface of the light guide plate. A lower cover is configured to cover at least part of a lower portion of a light incident surface of the wavelength conversion unit. An upper cover is configured to cover at least part of an upper portion of the light incident surface of the wavelength conversion unit.

Abstract: An optical waveguide includes a body of optically transmissive material having a width substantially greater than an overall thickness thereof. The body of material has a first side, a second side opposite the first side, and a plurality of interior bores extending between the first and second sides each adapted to receive a light emitting diode. Extraction features are disposed on the second side and the extraction features direct light out of at least the first side and at least one extraction feature forms a taper disposed at an outer portion of the body.

Abstract: Disclosed is a product comprising a luminous surface, the product comprising a light guide (10) providing said luminous surface, said light guide comprising a plurality of scattering elements (12) for producing a substantially homogeneous light output across said luminous surface; and a first solid state lighting element (20) arranged to emit a beam of light (30) into the light guide; wherein the light guide further comprises a body (40) arranged to create a region (50) in the light guide shaded from said beam.

Abstract: A display device includes a display panel, a backlight module and a reel. The backlight module faces the display panel and includes a light transmissive region, a light emitting region and a peripheral region, in which the peripheral region is disposed between the light transmissive region and the light emitting region. The light transmissive region includes a first edge extending along a first direction and a second edge extending along a second direction. The backlight module includes a first brightness enhancing film including first microstructures arranged along the first direction. The first microstructures that pass through the peripheral region without connecting to the first edge have less light gathering efficiency than the first microstructures that only pass through the light emitting region. The reel faces the light transmissive region, and the display panel and the reel are respectively located on opposing sides of the backlight module.

Abstract: Display backlight structures may provide backlight illumination that passes through display layers in the display. Computer-controlled equipment such as robotic arms with gripper structures may be used in assembling backlight layers such as a reflector, light guide plate, diffusers, and prism films into a backlight unit. The grippers may include mechanical grippers and vacuum heads. A vacuum gripper head may have a plenum to which a perforated plate and porous layer are attached for distributing the vacuum. Computer-controlled air sources may be used to blow streams of deionized air between backlight layers to separate the backlight layers during assembly. Release liners may be removed using robotic arms and grippers. Translation stages may move a backlight layer storage frame between stations. A cleaning tool with a solvent dispenser and air jets may clean backlight layers. A camera system may be used during alignment and positioning operations.

Abstract: A lighting assembly includes a light engine and a light guide. The light engine edge lights the light guide and includes a control assembly that controls light output according to one or more parameters to produce light output from the lighting assembly with a desired characteristic. Lighting assemblies are combined to form a modular lighting assembly.

Abstract: A display device that may include a bottom chassis including a base portion and one or more side portions extending at a predetermined angle from the base portion, a light guide plate on an upper surface of the bottom chassis, an optical sheet on the light guide plate, and a display panel on the optical sheet. At least one of the side portions may have a different width from the other side portions.

Abstract: Provided are a light guide plate which has a notch part formed at one edge part thereof and emits light made incident on the other edge part side from a light source through one surface thereof, such that it is possible to prevent the incident light from being irregularly reflected on the side face forming the notch part, and prevent an occurrence of stray light around the notch part, a light source device and a display apparatus. A side face forming the notch part has, on a light source side, an inclined face which is obliquely formed with respect to the incident light or a parallel face which is formed parallel to the incident light.

Abstract: A backlight device includes a backboard having a first portion and a second portion. The second portion is mounted to an outer periphery of the first portion. The first portion and the second portion together define a light mixing chamber. An insulating layer is formed on a surface of the first portion in the light mixing chamber or a surface of the second portion in the light mixing chamber. A lighting module includes at least one conductive circuit and at least one light-emitting diode electrically connected to the at least one conductive circuit. The at least one conductive circuit is formed on the insulating layer. An optical module is mounted to the backboard and is located in a top of the light mixing chamber.

Abstract: The present disclosure describes light delivery and distribution components of a ducted lighting system having a cross-section that includes at least one curved portion and a remote light source. The delivery and distribution system (i.e., light duct and light duct extractor) can function effectively with any light source (480) that is capable of delivering light which is substantially collimated about the longitudinal axis (405) of the light duct (410), and which is also preferably substantially uniform over the inlet of the light duct. A turning film (450) comprising parallel ridged microstructures intercepts and redirects light rays exiting the light output region. The light duct (410) is hollow and comprises a light transmissive region (430) which may vary in size along the longitudinal axis (405).

Abstract: An intravascular or other 2D or 3D imaging apparatus can include a minimally-invasive distal imaging guidewire portion. A plurality of thin optical fibers (804) can be circumferentially distributed about a cylindrical guidewire core (1002), such as in an spiral-wound or otherwise attached optical fiber ribbon (802). A low refractive index coating, high numerical aperture (NA) fiber, or other technique can be used to overcome challenges of using extremely thin optical fibers. Coating and ribbonizing techniques are described. Also described are nonuniform refractive index peak amplitudes or wavelengths techniques for FBG writing, using a depressed index optical cladding, chirping, a self-aligned connector, optical fiber routing and alignment techniques for a system connector, and an adapter for connecting to standard optical fiber coupling connectors.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for optical communications. In one aspect, an optical circulator array includes a plurality of stacked three port circulators each having a respective first port of a first port array, a respective second port of a second port array, and a respective third port of a third port array, wherein each of the plurality of staked three port circulators share optical components including: a first Wollaston prism coupled to the first port array, a first lens, a first half wave plate, a polarization dependent beam path separator, a second half wave plate, a second lens, a propagation direction dependent polarization rotation assembly, a second Wollaston prism coupled to the second port array, and a third Wollaston prism coupled to the third port array.

Abstract: Embodiments of the present disclosure are directed toward techniques and configurations for an optical device having a semiconductor layer to propagate light and a mirror disposed inside the semiconductor layer and having echelle grating reflective surface to substantially totally internally reflect the propagating light inputted by one or more input waveguides, to be received by one or more output waveguides. The waveguides may be disposed in the semiconductor layer under a determined angle relative to the mirror reflective surface. The determined angle may be equal to or greater than a total internal reflection angle corresponding to the interface, to provide substantially total internal reflection of light by the mirror. The mirror may be formed by an interface of the semiconductor layer comprising the mirror reflective surface and another medium filling the mirror, such as a dielectric. Other embodiments may be described and/or claimed.

Abstract: A semiconductor device for use in an optical application and a method for fabricating the device. The device includes: an optically passive aspect that is operable in a substantially optically passive mode; and an optically active material having a material that is operable in a substantially optically active mode, wherein the optically passive aspect is patterned to include a photonic structure with a predefined structure, and the optically active material is formed in the predefined structure so as to be substantially self-aligned in a lateral plane with the optically passive aspect.

Abstract: An optical waveguide directional coupler includes a base having a planar member and a ridge member and an optical waveguide in the base. The ridge member extends from the planar member and has an upper surface where the optical waveguide exposed. The optical waveguide includes a first flat side surface, a second flat side surface parallel to the first flat side surface, a third flat side surface, a fourth flat side surface parallel to the third flat side surface, and a first flat connection side surface. An included angle ?1 between the first and third flat side surfaces is an obtuse angle, an included acute angle ?1 is formed between the first flat connection side surface and the second flat side surface, and ?1 and ?1 satisfy ?1<(180°??1).

Abstract: The present disclosure provides an optical design configured to achieve an increased concentration and improved coupling of light to an optical fiber for a passive lighting system. Light may be passed through a collector lens followed by collimation and concentration to yield improved coupling of light to an optical fiber. Additionally, the optical design reduces the total number of optical fibers required to achieve effective illumination.

Abstract: The multiple channel fiber optic rotary joint of this invention can transmit an increased number of optical signals simultaneously through the de-rotating mechanism without increasing the size of the de-rotating mechanism. It also allows for the recapturing of the signals with relative ease. This is accomplished through the use of an optical condenser and/or an optical expander that reduces or expands the overall all beam structure without significantly altering the relative structure. The expanders and condensers are inverse structures in that if an optical signal is condensed when passing from right to light through the condenser it is expanded when passing left to right through the same condenser.