Abstract: A storage stores data of charging electric potentials at two or more points on a surface of an image carrier, and coordinates thereof expressed using a main-scanning position and a sub-scanning position thereof. A determination unit determines a correction value of a light power from the data of charging electric potentials at two or more points and coordinates thereof that have been read out from the storage unit. The correction value is applied to the light source so as to reduce the charging electric potential or the charging electric potential unevenness of coordinates on the surface of the image carrier. A correction unit uses the determined charging electric potential or correction value to correct the light power of the light source so as to mitigate an influence of charging unevenness at each set of coordinates.

Abstract: An optical waveguide device which is free from interference with an optical path between a light emitting element and an optical waveguide thereof, and to provide a method of manufacturing the optical waveguide device. A light emitting element (5) is provided on an upper surface of a first under-cladding layer (21), and a second under-cladding layer (22) is provided on the upper surface of the first under-cladding layer (21), covering the light emitting element (5). A core 3 which receives light emitted from the light emitting element (5) through the second under-cladding layer (22) is provided on an upper surface of the second under-cladding layer (22). The core (3) is located in a position such that the light emitted from the light emitting element (5) is incident on the core (3).

Abstract: Systems and methods for monitoring signals in an optical fiber amplifier system are provided. The optical amplifier system includes a tapered fiber bundle which couples optical energy into the cladding of an optical amplifier. A signal passing through the optical amplifier is amplified. To monitor the amplified signal, a single fiber of a tapered fiber bundle may be used as a monitor fiber. Alternatively, a monitor or coupler may be integrated into the tapered fiber bundle during manufacturing. The systems and methods disclosed allow for monitoring the amplified signal without increasing the length of the amplified signal's path, thus minimizing the introduction of additional non-linearities.

Abstract: An image forming apparatus wherein a photosensitive drum is located such that its circumferential surface is exposed to light at a position between an image surface of light that is emitted from an LED at a distance of a half of a pitch of a plurality of rod lenses from a first rod lens of the plurality of rod lenses and that passes through the first rod lens and an image surface of light that is emitted from an LED at a distance of the pitch of the plurality of rod lenses from a second rod lens of the plurality of rod lenses and that passes through the second rod lens.

Abstract: A system and method for cancellation of RF interference in the optical domain. The system and method utilize two Mach-Zehnder electrooptic modulators biased for parallel counter-phase modulation. The method of signal subtraction is referred to as incoherent optical subtraction, since two independent laser sources serve as the optical carrier waves. The system has produced the broadband cancellation result while simultaneously recovering a 50 dBm signal which was initially “buried” under the broadband interference. The cancellation depths achieved by the system are due to the accurate channel tracking and precise time delays attainable with modern optical devices—unattainable with state-of-the-art electronic devices at the time of this writing.

Abstract: A connector assembly that includes a receptacle connector and a light pipe. The connector is configured to receive a removable device inserted along a longitudinal axis. The connector has a side surface that extends along a plane defined by the longitudinal axis and a vertical axis that is perpendicular to the longitudinal axis. The connector includes a ledge and a positive stop that project laterally outward from the side surface. The ledge has a ledge surface that joins the side surface. The light pipe extends substantially along the longitudinal axis. The light pipe has an inward-facing surface that is substantially flat throughout and abuts the side surface of the connector. The light pipe rests upon the ledge surface and the positive stop is positioned on the side surface to block the light pipe from moving in at least one direction along the longitudinal axis.

Abstract: A light source driver mounted on a rectangular-shaped substrate includes a plurality of output parts that output driving signals to drive a plurality of light-emitting bodies. The plurality of output parts are disposed in a vicinity of the two sides of the substrate, the two sides of the substrate forming a corner of the substrate.

Abstract: Optical signals are transmitted via fiber optic cables. The cable ends have connectors that connect to fiber-optic adapters. The interface between a connector and its adapter typically creates unwanted signal reflections. These unwanted signal reflections are mitigated by including an eight degree angle-offset of one face of an optical fiber within the adapter itself, the other face of the optical fiber having no angle offset, and the adapter being contained within a rigid housing. The angle offset of the fiber optic face in the adapter is mated with a complementary angle offset of the optical fiber in the cable connector. Embodiments of the present invention avoid cable management issues presented by previous adapters that included flexible cable between its input and output the previous adapters being designed primarily as jumpers and not suitable for use in tight, crowded spaces.

Abstract: There is provided an exposure device including: a light-emitting element array at which a plurality of light-emitting elements, that emit light that passes through an optical path of diffused light, are arrayed one-dimensionally or two-dimensionally on a substrate; and a hologram element array at which a plurality of hologram elements are formed at positions, that respectively correspond to the plurality of light-emitting elements, of a hologram recording layer disposed on the substrate, so as to diffract and collect, at an outer side of illumination regions of all of the plurality of light-emitting elements, respective lights that are emitted from the plurality of light-emitting elements respectively.

Abstract: An optical waveguide device which is free from interference with an optical path between a light emitting element and an optical waveguide thereof, and to provide a method of manufacturing the optical waveguide device. A light emitting element (5) is provided on an upper surface of a first under-cladding layer (21), and a second under-cladding layer (22) is provided on the upper surface of the first under-cladding layer (21), covering the light emitting element (5). A core 3 which receives light emitted from the light emitting element (5) through the second under-cladding layer (22) is provided on an upper surface of the second under-cladding layer (22). The core (3) is located in a position such that the light emitted from the light emitting element (5) is incident on the core (3).

Abstract: An image display device includes a display panel, a first substrate over the display panel, a plurality of first electrodes on the first substrate, a plurality of second electrodes alternately arranged with the plurality of first electrodes, a second substrate facing the first substrate, a replica layer on the second substrate and having a concave pattern of half-cylinder shape, the concave pattern facing the second electrode, and a liquid crystal layer in the concave pattern.

Abstract: A liquid crystal lens includes: a first substrate; a second substrate disposed facing the first substrate and separated from the first substrate by a predetermined distance; a first electrode on an inner surface of the first substrate; a second electrode on an inner surface of the second substrate, the second electrode including a first opening that has a first width; a third electrode on the second electrode, the third electrode including a second opening that has a second width; and a liquid crystal layer disposed between the first and third electrodes.

Abstract: Provided are a 2-dimensional and 3-dimensional image display device and a method of manufacturing the same. The display device includes: an image display panel including first and second substrates with a first liquid crystal layer interposed therebetween; a switching panel including third and fourth substrates with a second liquid crystal layer interposed therebetween; and a backlight unit for supplying light to the image display panel and the switching panel.

Abstract: A cable exit trough is mountable to a lateral trough section either during initial assembly of the cable routing system, or at a later date. The exit trough includes a bracket portion mountable to the top edge of one of the sides of the lateral trough section. Two lead-ins are provided to lead the cable in an upward direction from the lateral trough section to the exit trough. The exit trough includes an exit trough portion extending from the bracket portion upwardly away from the lateral trough section. The exit trough portion includes a convexly curved bottom trough surface, and two convexly curved upstanding sides. The exit trough portion and the lead-ins define a cable pathway from the lateral trough section to an exit point of the exit trough portion which can either lead downwardly relative to the lateral trough section, or horizontally.

Abstract: A fiber distribution hub (FDH) provides an interface between an incoming fiber and a plurality of outgoing fibers. The FDH includes a cabinet, at least one door pivotably mounted to the cabinet, and a frame pivotably mounted within the cabinet. The doors wrap around the sides and the front of the cabinet to provide access to both the front and sides of the frame when the doors are open. The frame can pivot out of the cabinet through the open doors to enable access to the rear of the cabinet and the rear side of the frame. The frame includes a termination region and a splitter region. The frame can include a storage region and/or a pass-through region.

Abstract: An optically coupled device and an optical module including the optically coupled device are provided that can appropriately and efficiently perform position measurement of an optical surface, and allow a product having superior overall efficiency to be stably manufactured at a low cost. An optically coupled device main body 15 is formed having a shape that allows both first lens surface 5 and second lens surface 8 to be viewed simultaneously from a surface normal direction of at least one of a first surface portion 2a and a second surface portion 3a.

Abstract: A light emitting element array includes a plurality of light emitting elements each having a first terminal, a second terminal, and a third terminal. The light emitting elements are arranged next to each other to form a group. The first terminal receives a drive signal, the second terminal is connected to ground, and the third terminal has a threshold voltage or a threshold current controllable from outside so that the light emitting elements are driven in a time division way.

Abstract: An optical scanner includes a light source, a scan-deflecting portion including a resonance mirror to scan and deflect along a scan line, a plurality of light receiving sensors for synchronous detection provided on the scan line, a phase controller, an amplitude controller, and an offset controller. The phase controller obtains a difference between a true phase and a target phase, and generates a drive signal incorporating the difference between the true phase and the target phase. The amplitude controller incorporates the difference between a value equivalent of a true amplitude and a value equivalent of a target amplitude into the drive signal generated by the phase controller. The offset controller calculates an offset value by obtaining the difference between each of the time intervals, incorporates the difference between the offset value and a target offset value in the amplitude-controlled drive signal, and supply the drive signal to a driving device.

Abstract: An image forming apparatus includes a light beam output unit configured to output a light beam, a deflection unit for deflection scanning in a main scanning direction of a photosensitive member by reflecting the light beam from the light beam output unit, a timing information detection unit configured to detect timing information of the deflection scanning by the deflection unit, a calculation unit configured to calculate a correction amount of the main scanning direction for a next scan based on the timing information, a light beam modulation control unit configured to generate a light beam modulation signal based on image data and the correction amount, and a drive unit configured to drive the light beam output unit based on the light beam modulation signal.

Abstract: A recording apparatus includes a liquid droplet discharging head and a tank. The liquid droplet discharging head discharges a liquid droplet. The tank supplies a liquid to the liquid droplet discharging head. The liquid droplet discharging head includes a liquid droplet discharging head circuit board including a board substrate and a writing pattern. The wiring pattern is located on the board substrate to supply power and includes a plurality of divided wiring patterns formed by dividing at least a part of the wiring pattern in a width direction of the wiring pattern.