Abstract: An optical ferrule adapted to receive and transmit light is described. The optical ferrule includes first and second alignment features for mating with corresponding alignment features of a mating optical ferrule. One of the first and second alignment features may be compressible, expandable or compliant. An optical ferrule having first and second alignment features is described, wherein the ferrule is adapted such that the mating/unmating to/from a corresponding ferrule can be effected along two orthogonal dimensions of the ferrule. Additionally an optical ferrule having first and second alignment features is described, wherein the first and second alignment features are located at substantially different first and second locations/contact regions along the ferrule mating direction; the contact regions may also be offset along the thickness direction of the ferrule.

Abstract: A unitary optical ferrule is molded to include one or more elements for receiving and securing one or more optical waveguides one or more elements for affecting one or more characteristics of light from the optical waveguide while propagating the light within the ferrule. The optical ferrule also includes one or more first alignment features and one or more second alignment features that, when the ferrule is mated with a mating ferrule, each controls alignment of the ferrule with the mating ferrule along three mechanical degrees of freedom. The surface of the optical ferrule can be divided along the thickness axis into a first section and an opposing second section, wherein the first section of the surface includes the receiving and securing elements, the light affecting elements, and the first alignment features and the second section of the surface includes the second alignment features.

Abstract: Ferrules, alignment frames and connectors having at least one flexing element are provided. A ferrule or an alignment frame may include a body and first and second flexible arms, and a connector may include the ferrule or the alignment frame. A ferrule may have a first flexible arm that has a first fixed end attached to a first side of the body of the ferrule and an opposite first free end, and may have a second flexible arm having a second fixed end attached to a second side of the body, opposite the first side, and an opposite second free end. When the ferrule is mated with a mating ferrule, the first and second flexible arms are flexed away from the respective first and second sides of the body, and the first and second free ends contact the mating ferrule.

Abstract: A supply circuit adapted to provide a continuous power supply for a string of serially connected light emitting elements driven with a current source, said supply circuit including: a voltage supply capacitor connected to said string and being adapted to provide a supply voltage for a driving control unit configured to control the light emitting elements of said string; and a capacitor bypass switch connected in parallel with said voltage supply capacitor and being controlled by a local control circuit of said driving control unit, wherein said capacitor bypass switch is switched off by said local control circuit to charge said voltage supply capacitor with a charging current to maintain a continuous power supply without disturbing the current to said string of light emitting elements.

Abstract: A modular optical connector includes a plurality of coupled optical ferrule support modules. Each optical ferrule support module comprises module connecting features configured to couple each ferrule support module with one or more neighboring ferrule support modules of the plurality of ferrule support modules. One or more optical ferrules are disposed and configured to rotate within the ferrule support module. Each optical ferrule includes a first attachment area configured to attach to one or more optical waveguides. One or more passageways are disposed within the ferrule support module. Each passageway is configured to receive the one or more optical waveguides. The passageway comprises a second attachment area configured to attach to the optical waveguides that are attached to the optical ferrule at the first attachment area. The passageway is dimensioned to constrain the optical waveguides to bend within the housing between the first attachment area and the second attachment area.

Abstract: A marker composition and a package using same. The marker composition can include retroreflective particles and a dispersion medium, the blending ratio of the retroreflective particles being from 50 to 90 mass % on the basis of the total marker composition.

Abstract: A supply circuit adapted to provide a continuous power supply for a string of serially connected light emitting elements driven with a current source, said supply circuit including: a voltage supply capacitor connected to said string and being adapted to provide a supply voltage for a driving control unit configured to control the light emitting elements of said string; and a capacitor bypass switch connected in parallel with said voltage supply capacitor and being controlled by a local control circuit of said driving control unit, wherein said capacitor bypass switch is switched off by said local control circuit to charge said voltage supply capacitor with a charging current to maintain a continuous power supply without disturbing the current to said string of light emitting elements.

Abstract: Optical connectors are provided for connecting sets of optical waveguides (110), such as optical fiber ribbons to each other, to printed circuit boards, or to backplanes. The provided connectors include a waveguide alignment member (105) for receiving and aligning a plurality of optical waveguides (110) such that central light rays of light exiting the plurality of optical waveguides propagate along a same incident direction (115) in a same incident plane XY. The optical connectors also include a light redirecting side that comprises a plurality of segments (130) forming a row of segments (130a, 130b, . . . ), each segment corresponding to a different optical waveguide. A first segment (130a) redirects light along a first redirected direction (140a) and a second segment (130b) redirects light along a second redirected direction (140b) different from the first redirected direction. Other segments redirect light to either a first redirected direction or a second redirected direction.

Abstract: Particles comprising a composite core and a continuous inorganic coating covering the composite core, wherein the composite core comprises a continuous non-metallic inorganic matrix, ligands, and quantum dots, wherein the matrix comprise up to 40 volume percent, and wherein the coating has an average thickness up to 5 micrometers; and method of making the particles. Particles described here are useful, for example, to make articles (e.g., film).

Abstract: A connector is disclosed that includes a light coupling unit designed to receive light from an input side of the light coupling unit and transmit the received light to a mating connector from an output side of the light coupling unit along a direction different than the mating direction of the connector. The light coupling unit rotates when the connector mates with the mating connector.

Abstract: A connector is disclosed that includes a housing and first and second attachment areas located in the housing and spaced apart from each other along the mating direction of the connector. The second, but not the first, attachment area is designed to move relative to the housing. The connector further includes an optical waveguide that is permanently attached to, and under a first bending force between, the first and second attachment areas. The connector also includes a light coupling unit located in the housing for receiving light from the optical waveguide and transmitting the received light to a mating connector along a direction different than the mating direction of the connector. The mating of the connector to the mating connector causes the optical waveguide to be under a greater second bending force between the first and second attachment areas.

Abstract: The disclosure generally relates to individual optical waveguides, sets of optical waveguides such as optical fiber ribbons, and fiber optic connectors useful for connecting individual optical waveguides or multiple optical fibers such as in optical fiber ribbon cables. In particular, the disclosure provides an efficient, compact, and reliable optical fiber connector that exhibits a low insertion loss for use with multimode optical waveguides. The optical connectors incorporate a unitary light coupling unit combining the features of optical fiber alignment, along with redirecting and shaping of the optical beam.

Abstract: Optical connectors are provided for connecting sets of optical waveguides (104), such as optical fiber ribbons to each other, to printed circuit boards, or to backplanes. The provided connectors (100) include a housing (110) that has an attachment area (102) for receiving and permanently attaching a plurality of optical waveguides. Additionally, the provided connectors include a light coupling unit (120) disposed in and configured to move with the housing. The provided connectors also include a second attachment area (108) for receiving and permanently attaching to the plurality of optical waveguides that causes each optical waveguide to be bent between the two attachment areas. The provided connectors utilize expanded beam optics with non-contact optical mating resulting in relaxed mechanical precision requirements. The provided connectors can have low optical loss, are easily scalable to high channel count (optical fibers per connector) and can be compatible with low insertion force blind mating.

Abstract: Lightguides are disclosed. In particular, lightguides including extractors with directionally dependent extraction efficiency are disclosed. The lightguide may include a series or array of directionally dependent light extractors. Certain configurations enabling the display of indicia and exemplary light extractor shapes are also disclosed.

Abstract: A system for making flexible circuit films includes an inelastic conveyor, a web handling apparatus configured to pass a flexible substrate around the inelastic conveyor, an image acquisition apparatus configured to measure positions of a first set of alignment marks on the flexible substrate at a first conveyor location, an exposure apparatus configured to patternwise expose a photosensitive material on the flexible substrate at a second conveyor location, and an image processor configured to receive the measured positions of the first set of alignment marks, and to compare the measured positions with reference positions of the first set of alignment marks. The exposure apparatus is configured to patternwise expose the photosensitive material based on the comparison between the measured positions and the reference positions.

Abstract: Light emitting systems are described. Particularly, light emitting systems and light converting components utilized within these systems are described. The light emitting system and components are formed such that dark-line defects do not interfere with the light emitting system efficiency.

Abstract: An optical communication subassembly includes one or more optoelectronic devices, one or more optical elements, and a transceiver light coupling unit. Each optical element is configured to change a divergence of the outgoing light relative to a divergence of the incoming light and is spaced apart from and optically aligned with a corresponding optoelectronic device. The transceiver light coupling unit has a mating surface configured for mating with a connector light coupling unit attached to an optical waveguide. A mating direction of the optical light coupling unit forms an angle with the mating surface of the transceiver light coupling unit such that when the connector light coupling unit mates with the transceiver light coupling unit, the angle between the mating direction of the connector light coupling unit and the mating surface of the transceiver light coupling unit causes the optical waveguide to bend.

Abstract: Solar cells exhibiting improved conversion efficiency are disclosed. Particularly, multi-pn junction solar cells that contain a current spreading layer as well as concentrating photovoltaic modules that include such a solar cell and light concentrating optics are disclosed. The multi-pn junctions in question may generally be made up of III-V semiconductor materials, while the current spreading layer may generally be made up of II-VI semiconductor materials.

Abstract: Re-emitting semiconductor constructions (RSCs) for use with LEDs, and related devices, systems, and methods are disclosed. A method of fabrication includes providing a semiconductor substrate, forming on a first side of the substrate a semiconductor layer stack, attaching a carrier window to the stack, and removing the substrate after the attaching step. The stack includes an active region adapted to convert light at a first wavelength ?1 to visible light at a second wavelength ?2, the active region including at least a first potential well. The attaching step is carried out such that the stack is disposed between the substrate and the carrier window, which is transparent to the second wavelength ?2. The carrier window may also have a lateral dimension greater than that of the stack. The removal step is carried out so as to provide an RSC carrier device that includes the carrier window and the stack.

Abstract: An electronic vehicle fluid pump includes an electronically commutated drive motor. The electronically commutated drive motor includes an electronic motor control unit which includes a first main board, a second main board, at least one flexible conduction band, at least one intermediate board arranged between the first main board and the second main board and electrically connected with the first main board and the second main board via the at least one flexible conduction band, and at least one electronic component arranged on the at least one intermediate board. The first main board, the second main board, and the at least one intermediate board are respectively arranged at a different spatial level.