Abstract: An optical device wherein an optical waveguide is formed on a dielectric substrate, the optical device includes an input part and an output part where the optical waveguide and corresponding optical fibers are connected. A stress layer is provided for at least one of the input part and the output part. The stress layer applies a stress to the optical waveguide so that an index of refraction of the optical waveguide is reduced.

Abstract: A method is disclosed for forming a photonic crystal in a homogeneous layer of material. The method enables the fabrication of 1D, 2D, or 3D photonic crystals. Photonic crystals in accordance with embodiments of the present invention exhibit low temperature sensitivity and low device curvature. In some embodiments, photonic crystals in accordance with embodiments of the present invention are integrated with mechanical elements, such as micromechanical, nanomechanical, microelectronic, and microfluidics devices and systems.

Abstract: A liquid droplet ejection head comprises an ejector, a liquid viscosity-increase prevention structure and a liquid viscosity-increase prevention controller. The ejector includes a nozzle for ejecting a liquid droplet, a pressure chamber communicating with the nozzle through a communication path, and an actuator for applying pressure to a liquid in the pressure chamber. The liquid viscosity-increase prevention structure prevents an increase of viscosity of the liquid in the ejector. The liquid viscosity-increase prevention controller changes the operation frequency of the liquid viscosity-increase prevention structure between when the liquid droplet is ejected from the nozzle and when ejection of the liquid droplet is paused and no liquid droplet is being ejected from the nozzle.

Abstract: An interface converter is provided for mechanically and optically coupling a non-ruggedized fiber optic connector with a ruggedized adapter port. In a preferred embodiment, the interface converter attaches to an SC fiber optic connector and together form a converted fiber optic connector compatible with the ruggedized adapter port. In certain embodiments, a retractable release sleeve may be removed from the SC fiber optic connector prior to attaching the interface converter. In certain embodiments, the interface converter may be inserted into the ruggedized adapter port prior to being attached to the SC fiber optic connector.

Abstract: A fiber optic sensing system comprises a housing disposed in a flow path, and a fiber optic sensor. The fiber optic sensor comprises an optical fiber secured in the housing, a Bragg grating, a light source for transmitting light to the optical fiber, and a detector for detecting light filtered by the Bragg grating of the optical fiber and monitoring wavelength changes of the detected light. The fiber is substantially perpendicular to the flow path. The housing defines an opening at an upstream side to allow flow through the flow path to exert a pressure on the optical fiber and cause a deformation of the Bragg grating.

Abstract: The present disclosure relates to a replaceable printing component for use in a printing system including print mechanism configured to receive the replaceable printing component. The replaceable printing component includes an electrical storage device responsive to printing system control signals for selectively storing information received from the print mechanism, the electrical storage device includes a storage portion containing data associated with the replaceable printing component, and first and second validation fields configured to store error detection codes relatable to the data contained in the storage portion to determine whether the data is valid.

Abstract: An apparatus comprising a planar optical structure that includes an input coupler, first and second planar waveguides and an output coupler, all on a planar substrate. The input coupler is configured to divide an incoming light into two input light beams. Each of the first and second waveguides is configured to receive one of the two input light beams. The first waveguide has a first core with a width that is greater than a width of a second core of the second waveguide. At least one of the first or second planar waveguides is birefringent. The output coupler is configured to receive the light beams after passage through the first and second waveguides. A first output light beam from the output coupler is substantially TE polarized light and a second output light beam from the output coupler is substantially TM polarized light.

Abstract: A control and display unit for differentiated colored marking of texts or symbols provided with a monochrome LC-display and a backlight of the LC-display. A film, which is provided with a microstructure on at least one side, is arranged between the backlight and the LC-display.

Abstract: An interface converter is provided for mechanically and optically coupling a fiber optic connector with an adapter port. In a preferred embodiment, the interface converter attaches to an SC fiber optic connector and together form a converted fiber optic connector compatible with the adapter port. In certain embodiments, a retractable release sleeve may be removed from the SC fiber optic connector prior to attaching the interface converter. In certain embodiments, the interface converter may be inserted into the adapter port prior to being attached to the SC fiber optic connector.

Abstract: A printer includes a holding unit, a printer head, a supporting device, a movement controller and a printing controller. The holding unit is configured to hold a print substrate having a surface to be printed. The axes X and Y pass through the print substrate. The movement controller is configured to move the holding unit and the printer head relative to each other in the directions of the axes X, Y and Z which are substantially perpendicular to each other and configured to rotate the holding unit about the axes X and Y relative to the printer head. The printing controller is configured to control ejection of the ink from the printer head according to a relative position of the holding unit and the printer head.

Abstract: Provided are a printing apparatus and a conveying-error controlling method capable of printing a high-quality image by correction reflecting the conveying amount of a printing medium. A provided inkjet printing apparatus prints images by printing scans for actual printing and by conveying the printing medium with a roller orthogonally to the printing-scan direction. In each printing scan, the printing medium is scanned with a print head having an array of nozzles from which the ink is ejected. The print head moving direction differs from the arranging direction of the nozzles in the array. The apparatus includes a conveying controller to control the conveying of the printing medium on the basis of a correction value used to correct a conveying error of the roller. The conveying controller changes the correction value to be applied in accordance with the conveying amount of the printing medium between two scans with the print head.

Abstract: An electronic apparatus includes a plurality of semiconductor storage devices, each of which includes an access determination unit that determines whether the semiconductor storage device is accessed, an input terminal and an output terminal used for connection checking, a normally-closed switching element that electrically disconnects the input terminal from the output terminal when the access determination unit determined that the semiconductor storage device is accessed, and a bypass circuit that electrically connects the input terminal to a reference point through predetermined impedance.

Abstract: An image forming apparatus includes a transport belt, a carriage, a reflection sensor, and a control unit. The transport belt transports a recording sheet in a sub-scanning direction. The carriage, mounting a recording head, reciprocally moves in a main scanning direction to record an image on the recording sheet. The reflection sensor, mounted on the carriage, receives light reflected from the transport belt to detect a leading edge of the recording sheet, and outputs a detection signal corresponding to the received light. The control unit controls a contamination check process. The control unit instructs the carriage to move to a given position over the transport belt and to drive the transport belt for one rotation while maintaining the carriage at the given position. The control unit determines whether contamination exists on the transport belt based on the detection signal output from the reflection sensor.

Abstract: Examples of a computer system packaged in a three-dimensional stack of dies are described. The package includes an electrical die and an optical die coupled to and stacked with the electrical die. The electrical die includes circuitry to process and communicate electrical signals, and the optical die includes structures to transport optical signals. The electrical die has a smaller area than the optical die so that the optical die includes an exposed mezzanine which is configured with optical input/output ports. Additionally, the packaging can be configured to provide structural support against insertion forces for external optical connections.

Abstract: An inkjet head driving apparatus, wherein serial data indicating emission or non emission of nozzles respectively for a plurality of heads, is latched and memorized, and the nozzles are driven respectively based on the data memorized, the inkjet head driving apparatus having: an emission timing signal outputting device disposed in common for a plurality of heads so as to output a plurality of emission timing signals in one emission cycle; a setting device disposed respectively for the plurality of the heads so as to select the sequential emission timing signals at which emission starts synchronously, among the emission timing signals outputted from the emission timing signal outputting device in one emission cycle.

Abstract: A liquid ejection control device controlling a liquid ejecting mechanism having a plurality of liquid ejection heads, includes a dividing unit to which image data consisting of a plurality of pixels is inputted and which divides the image data into a plurality of pieces of divided image data, each corresponding to pixels which undergo a liquid ejection, of each of the liquid ejection heads, a correction data acquiring unit which acquires correction data eliminating a deviation of liquid ejection locations of the plurality of liquid ejection heads, a correcting unit which corrects the divided image data on the basis of the correction data, and a liquid ejection controlling unit which performs liquid ejection control by which each of the liquid ejection heads is driven on the basis of the divided image data which is corrected.

Abstract: A method of assembling an optical fiber connector includes the steps of providing a ferrule with an internal through passage, and using a gas for treating a surface of the internal through passage to enhance a bonding capability of the surface. Adhesive is introduced into at least a portion of the internal through passage and at least one optical fiber is secured to the surface of the internal through passage by the adhesive. Another method includes the steps of providing the ferrule with an internal through passage including a shoulder, a window that extends through a side surface, and a cap having at least a portion inserted into the window. Adhesive is introduced into at least a portion of the internal through passage and is in engagement with the shoulder for providing an axial stop for securing at least one optical fiber with respect to the internal through passage.

Abstract: A recording apparatus is provided. The recording component includes a plurality of recording portions arranged in a first direction and moves relatively to a recording medium at a speed V in a second direction intersecting with the first direction. The reading component reads an image recorded on the recording medium in a reading cycle T by a plurality of reading sections arranged at a predetermined pitch in the first direction. The control component controls, on the recording medium by the recording component, recordation of a detection mark having a size W in the first direction of twice or more than twice the predetermined pitch and a size L in the second direction in which L?(n+1)·V·T (where n is an integer of 1 or more) and calculate a barycenter position of the detection mark in the first direction based on a reading result of the detection mark.

Abstract: Optical systems for sensing radiation emissions from radiological and nuclear matter. An example system includes a light source, a light sensor, a processing device in signal communication with the light source and the light sensor, and a fiber optic cable that receives light from the light source and delivers light to the light sensor. The fiber optic cable includes an optical fiber core region surrounded by a cladding region. The optical fiber is a single mode optical fiber having a mode field diameter greater than 25 ?m. The optical fiber cladding region includes a plurality of lengthwise holes positioned to provide single mode light propagation properties. The plurality of lengthwise holes have a diameter between 0.1-5 ?m.

Abstract: An ink supply system for an inkjet printer. The ink supply system includes: an upstream ink conduit for connection with an ink inlet of a printhead; a pressure-regulating chamber having an outlet port connected to the upstream ink conduit, the chamber containing ink at a first level below the printhead, wherein a headspace above the first level of ink is open to atmosphere; and a downstream ink conduit for connection with an ink outlet of the printhead, the downstream ink conduit extending above the first level of ink and being open to atmosphere. The downstream ink conduit has a loop section passing below the first level of ink, such that, in a printing configuration, a second level of ink in the loop section is equal to the first level of ink in the chamber.