Patent application number | Description | Published |
20120224594 | WAVELENGTH TUNABLE FILTER AND WAVELENGTH TUNABLE LASER MODULE - A wavelength tunable filter and a wavelength tunable laser module are a codirectional coupler type whose characteristics do not vary significantly with a process error. They are structured so as to include a semiconductor substrate which has a first optical waveguide and a second optical waveguide. The first and the second optical waveguides are extended from a first side of the semiconductor substrate to an opposing second side thereof. The first optical waveguide includes a first core layer, which has a planar layout having periodic convexes and concaves, and a pair of electrodes, which vertically sandwich the first core layer. The second optical waveguide includes a second core layer, which has a lower refractive index than the first core layer. Further, a layer having the same composition and film thickness as the second core layer is placed under the first core layer. | 09-06-2012 |
20120314725 | OPTICAL DEVICE, MODULATOR MODULE, AND METHOD FOR MANUFACTURING THE OPTICAL DEVICE - An optical device includes a ridge-like optical waveguide portion, a mesa protector portion that is arranged in parallel to the optical waveguide portion, a resin portion that covers upper parts of the mesa protector portion and is disposed at both sides of the mesa protector portion, an electrode that is disposed on the optical waveguide portion, an electrode pad that is disposed on the resin portion located at an opposite side to the optical waveguide portion with respect to the mesa protector portion, and a connection portion that is disposed on the resin portion and electrically connects the electrode to the electrode pad. | 12-13-2012 |
20130051725 | OPTICAL DEVICE, OPTICAL MODULE, AND METHOD FOR MANUFACTURING OPTICAL DEVICE - An optical device includes a substrate and a first optical waveguide including a mesa. The mesa includes a first lower clad layer portion, a first core layer portion, and a first upper clad layer portion. The first lower clad layer portion, the first core layer portion, and the first upper clad layer portion are disposed in this order from the substrate side. The optical device also includes a first etch stop layer configured to stop etching when the first optical waveguide is formed. The first etch stop layer being laminated over the substrate. The first optical waveguide is laminated on the first etch stop layer. | 02-28-2013 |
20130209021 | OPTICAL SEMICONDUCTOR MODULATOR DEVICE AND OPTICAL MODULE - In an optical semiconductor device related to the present invention, a first light source outputting light having a first polarization, a second light source outputting light having a second polarization, a first optical modulator being optically connected to an output side of the first light source and modulating the light that is output from the first light source to output a light signal, a second optical modulator being optically connected to an output side of the second light source and modulating the light that is output from the second light source to output a light signal, and an optical multiplexer coupling the light signal that is output from the first optical modulator with the light signal that is output from the second optical modulator to output a coupled light signal, are integrated on a semiconductor substrate together. | 08-15-2013 |
20140153605 | OPTICAL DEVICE - An optical device includes a first substrate, having first and second surfaces, and a second substrate having a third surface. The first substrate includes: a laser unit, having an active layer and emitting light into the first substrate from the active layer; a reflecting mirror, having a plane obliquely intersecting an optical axis of light emitted from the laser unit, and being formed on the first surface so as to reflect the light toward the second surface; and a convex lens, being formed in a region on the second surface, the region including an optical axis of the light reflected by the reflecting mirror. The second substrate is provided with a grating coupler and an optical waveguide on the third surface, the optical waveguide having light incident on the grating coupler propagating therethrough. | 06-05-2014 |
Patent application number | Description | Published |
20080239747 | LINE ILLUMINATION DEVICE AND IMAGE INPUT APPARATUS USING THE SAME - A line illumination device includes: a frame; a rod-shaped light-guiding member housed in the frame; a flexible substrate; and a light source that is provided on the flexible substrate and emits light to the light-guiding member. The flexible substrate is bent so that the light source is disposed at an end of the light-guiding member and that the flexible substrate is housed in the frame. Power is supplied to the light source through a wiring provided on the flexible substrate so that the light source emits light and the light-guiding member emits light in line-shape. | 10-02-2008 |
20090207462 | IMAGE READING APPARATUS - An image reading apparatus includes: a light source emitting a plurality of colors; a light receiver including a plurality of pixels which receive lights of respective colors; an analog-to-digital converter which analog-to-digital converts analog signals obtained by the light receiver to obtain digital photoelectric conversion outputs, respectively; a color determining portion which receives output signals, determines whether output signals for respective colors from the same pixel are within predetermined ranges, respectively, and outputs, as dropout data, pixel position information of the pixel, the outputs signals from which are within the predetermined ranges, respectively; an image monochromating circuit which receives output signals and obtains monochrome data; a data substituting portion which receives the monochrome data, substitutes the monochrome data corresponding to the pixel position information from the color determining portion with a level at which the pixel is determined as a white level in a binarizing process. | 08-20-2009 |
20140376254 | LIGHT SOURCE DEVICE - A light guide propagates light emitted by a light source in the long axis direction. A fluorescent material layer surrounds the outer periphery of the light guide except for an opening along the long axis direction. A light reflecting pattern is provided on the outer periphery of the light guide opposite to the fluorescent material layer. The fluorescent material layer captures light reflected by the light reflecting pattern and exiting from the outer periphery of the light guide, reflects part of the light, and emits light of different wavelengths. The light emitted by the fluorescent material layer is transmitted into the light guide, and the light having entered therein from the end and the light emitted by the fluorescent material layer are emitted to the object from a portion of the light guide that is exposed in the opening. | 12-25-2014 |
Patent application number | Description | Published |
20080251741 | READING SYSTEM FOR RADIATION IMAGE CONVERSION PANEL AND RADIATION IMAGE CONVERSION PANEL - A reading system for reading information recorded in a radiation image conversion panel containing a flexible substrate having thereon a phosphor layer containing a columnar crystal phosphor, wherein the reading system has a transport section to transport the radiation image conversion panel with curvature when the radiation image conversion panel is transported in the reading system, provided that the radiation image conversion panel has a curvature radius of from 50 to 500 mm during transportation by the transport section in the reading system. | 10-16-2008 |
20090078887 | RADIATION IMAGE CONVERSION PANEL AND PREPARATION METHOD THEREOF - There is provided a radiation image conversion panel having strong resistance to physical impact, and in which enhanced sharpness and adhesion are balanced, especially, enhanced adhesion of a photostimulable phosphor layer onto a support is achieved, and a preparation method of the radiation image conversion panel. The radiation image conversion panel comprising on a support a sublayer and at least one photostimulable phosphor layer in this order from the support, featured in that the photostimulable phosphor layer is formed by a gas phase method and has a thickness of not less than 50 μm, and the sublayer comprises a thermoplastic resin and the thickness of the central portion in an image area of the sublayer is greater than that of the peripheral portion of the image area. | 03-26-2009 |
20100034351 | RADIATION IMAGE CONVERSION PANEL, ITS MANUFACTURING METHOD, AND X-RAY RADIOGRAPHIC SYSTEM - Disclosed are a radiation image conversion panel, which provides high luminance, an image without white or black defects, an image free from cracks and an image with reduced unevenness, and its manufacturing method. Also disclosed is an X-ray radiographic system employing the radiation image conversion panel. The radiation image conversion panel of the invention comprises a substrate and provided thereon, a reflection layer, a phosphor layer and a protective layer in that order, wherein the phosphor layer is composed of a phosphor crystal in the form of column, and the reflection layer is formed by vapor phase deposition of two or more kinds of metals. | 02-11-2010 |
20110017925 | RADIATION IMAGE CONVERSION PANEL - A radiation image conversion panel which is excellent in luminance and sharpness is disclosed, comprising a phosphor layer formed on a support by a process of vapor growth, and the support comprising a resin and exhibiting a linear thermal expansion coefficient of 20 to 70 ppm/° C. | 01-27-2011 |
20120068074 | METHOD OF MANUFACTURING SCINTILLATOR PANEL, SCINTILLATOR PANEL, AND RADIATION IMAGE DETECTOR - A method of manufacturing a scintillator panel in which no dust is generated when improving protrusions on the phosphor surface, resulting in no generation of image defects caused by the dust, to-provide a scintillator panel exhibiting excellent image quality and a radiation image detector thereof. The scintillator panel includes a support having a phosphor layer formed thereon. The method includes forming the phosphor layer on the support, and subsequently heat-treating the support and the phosphor layer which are sandwiched by two rigid plates under applied pressure. | 03-22-2012 |
20120211661 | METHOD FOR PRODUCING SCINTILLATOR PANEL, SCINTILLATOR PANEL AND FLAT PANEL DETECTOR - Provided is a method for producing a scintillator panel containing a first support having thereon a phosphor layer, and a protective layer on the phosphor layer, the method comprising the steps of (1) dividing a first scintillator panel comprising the first support having thereon the phosphor layer into a plurality of second scintillator panels; (2) providing an adsorbing member between a side of the first support of each of the plurality of the second scintillator panels and a side of a second support; and allowing to adsorb the plurality of the second scintillator panels onto the second support; (3) forming a protective layer on a whole surface of the plurality of the second scintillator panels except a portion of the second scintillator panels which is contacted with the adsorbing member. | 08-23-2012 |
20140239195 | DEPOSITION SUBSTRATE AND SCINTILLATOR PANEL - An object of the invention is to provide a scintillator panel which exhibits excellent cuttability and can be cut without the occurrence of problems such as the separation of a scintillator layer and which can give radiographic images such as X-ray images with excellent sensitivity and sharpness. The scintillator panel of the invention includes a reflective layer and a scintillator layer formed by deposition on a support, and the reflective layer includes light-scattering particles and a specific binder resin and has a specific thickness. | 08-28-2014 |
20140239196 | DEPOSITION SUBSTRATE AND SCINTILLATOR PANEL - An object of the invention is to provide scintillator panels which can give radiographic images such as X-ray images with excellent sharpness and excellent uniformity of sharpness, which realize devices such as flat panel detectors having uniform image quality characteristics in the light-receiving plane, and which exhibit excellent cuttability, excellent sharpness and excellent in-plane uniformity of sharpness. A scintillator panel of the invention includes a support, a reflective layer on the support, and a scintillator layer formed on the reflective layer by deposition. The reflective layer includes light-scattering particles and a binder resin. A specific region of the reflective layer is defined by a resin or includes light-scattering particles having a specific area average particle diameter, or the reflective layer has a specific arithmetic average roughness. | 08-28-2014 |