Mitsubishi Electric Corporation

Calsonic Kansei Corporation

Mitsubishi Denki Kabushiki Kaisha

Laurel Precision Machines Co., Ltd.

Shimadzu Corporation

Yasuyuki Nakagawa

Hiromasu Matsuoka

Harumi Nishiguchi

Yasuhiro Kunitsugu

Shigeyuki Sato

Yukio Sato

Kazushige Kawasaki

Hiroshi Kurokawa

Junichi Horie

Toru Yoshihara

Tetsuya Yagi

Mitoru Yabe

Kyosuke Kuramoto

Yukihisa Wada

Yosuke Suzuki

Toshihiko Shiga

Naoji Moriya

Muneaki Mukuda

Masatsugu Kusunoki

Mitsumasa Tsuruda

Shoichi Uda

Nobushige Horiguchi

Masaru Kinugawa

Toru Yamaguchi

Takeo Shirahama

Sonoko Umemura

Hisato Kasahara

Kiichiro Ikedaka

Tatsuo Sato

To obtain a resin type identification method and a resin type identification apparatus with which an optimum infrared reflection spectrum for identifying a resin piece can be selected and accurate identification processing can be performed successively on individual resin pieces even when the resin pieces are identified using a single optical detector, at least one identifying signal power is selected by executing signal processing on the basis of signal powers corresponding to infrared reflection intensities obtained by emitting infrared light onto the resin piece, and the resin type of the resin piece is identified on the basis of an infrared reflection spectrum corresponding to the selected identifying signal power.

Resin type identification method and resin type identification apparatus

An objective is to provide a light source device having a light emission source such as a semiconductor laser (LD), an LED and a lamp, and an optical part such as a lens and a fiber for transmitting, transferring and light-focusing, in which, by controlling the amount of sulfate ions inside the device at a low level, adhesion of ammonium sulfate to the optical part can be prevented. The light source device includes a light source for emitting light, an optical part for processing light emitted from the light source, and a housing in which the optical part is housed, or to which the optical part is mounted, and the housing is formed by machining material that includes no sulfur component, and the material is exposed on the surface thereof.

Light source device with reduced optical part clouding

A coin processing apparatus according to the present invention includes: a coin conveying section that conveys coins on a coin passage; an identifying section that identifies coins on the coin passage; at least one discharging section that discharges normal coins that are identified as normal by the identifying section from the coin passage; at least first and second removing sections that remove abnormal coins that are identified as abnormal by the identifying section from the coin passage; and a control section that distributes abnormal coins to either one of the first and second removing sections in order to remove the abnormal coins, in accordance with identification factors of the abnormal coins.

Coin processing apparatus

The invention provides an end-face-processing jig that allows the formation of a reflectance control film on an end face of a semiconductor laser body while preventing possible degradation due to catastrophic optical damage (COD) of a semiconductor laser, and a method of manufacturing a semiconductor laser employing such an end-face-processing jig. A window part of the end-face-processing jig is made of at least one of an oxide and a nitride, and semiconductor laser bars are fixed by the end-face-processing jig so that their end faces are exposed through a window of the window part. In this condition, a reflectance control film is formed on the end faces of the semiconductor laser bars for the manufacture of a semiconductor laser. This prevents a metal from being taken in the reflectance control film, thus preventing the absorption of light caused by a metal taken in the reflectance control film. It is thus possible to form a reflectance control film on the end faces of semiconductor laser bars while preventing possible degradation due to COD of a semiconductor laser.

Method of manufacturing semiconductor laser using end-face-processing jig

A semiconductor light-emitting device includes a light generation unit generating light with an oscillation wavelength &#x3bb;, a light outgoing facet from which light generated at the light generation unit emerges, a light reflecting facet at which light generated at the light generation unit is reflected, and a high reflection film at the light reflecting facet and made of a dielectric multilayered film of at least three layers. The high reflection film includes a first layer which is in contact with the light reflection facet, is constituted of AlO, and has a thickness smaller than &#x3bb;/4n, wherein n is the refractive index of AlO, a second layer which is in contact with the first layer, and a third layer which is in contact with the second layer and has a refractive index different from the refractive index of the second layer.

Semiconductor laser device including highly reflective coating film

A GaN laser, includes a coating film on a front end surface through which laser light is emitted. The coating film includes a first insulating film in contact with the front end surface and a second insulating film on the first insulating film. The optical film thickness of the second insulating film is an odd multiple of &#x3bb;/4 with respect to the wavelength &#x3bb; of laser light produced by the semiconductor laser. The adhesion of the first insulating film to GaN is stronger than the adhesion of the second insulating film to GaN. The refractive index of the second insulating film is 2 to 2.3 thick. The first insulating film is 10 nm or less. The first insulating film is an oxide film having a stoichiometric composition.

Semiconductor laser

A coin wrapping machine includes a discrimination unit which detects images of the front face and rear face of coins during conveyance, and which discriminates the coins, a sorting unit which sorts the coins to one of a first side and a second side based on the discrimination results of the discrimination unit, a stacking unit which stacks the coins sorted to the first side by this sorting unit into columnar form with a prescribed number of coins, a wrapping unit which wraps stack of coins in columnar form, and a controller which controls the sorting unit based on the discrimination results so that at least one of an outside face of a coin at one end of the stack of coins and a second outside face of a coin at the other end of the stack of coins is the rear face.

Coin wrapping machine

A semiconductor laser device includes a semiconductor laser body including a resonator and having a front end face and a rear end face facing each other, the resonator being located between the front end face and the rear end face. The front end face emits principal laser light. A reflectance control film is disposed on the front end face or the rear end face of the semiconductor laser body and is made up of either an aluminum oxide film or a five-layer film including the aluminum oxide film disposed such that it is the layer in the five-layer film farthest from the front end face or the rear end face. A silicon oxide film is disposed on the aluminum oxide film of the reflectance control film and has a thickness of 20 nm or less.

Semiconductor laser device

A semiconductor laser device comprises a GaN substrate having a refractive index of 3.5 or below, a semiconductor layer laminated on the substrate, and a pair of facets forming a resonator and in face-to-face-relation to each other in a direction perpendicular to the direction of the laminated layer. One of the facets of the resonator includes a low reflection film, of a first dielectric film, a second dielectric film, a third dielectric film, and a fourth dielectric film. When the refractive indexes of these films are taken as n, n, n, and n, nand n=n. The following relationship between the first dielectric film and the third dielectric film, and between the second dielectric film and the fourth dielectric film is established, nd+n'd&#x2032;=p&#x3bb;/4, where p is an integer, and &#x3bb; is oscillation wavelength of a laser beam generated by the semiconductor laser device.

Semiconductor laser device having a low reflection film of stable reflectance

A low reflective film is formed of, in sequence from a side in contact with a laser chip, a first dielectric film of a refractive index nand a thickness d, a second dielectric film of a refractive index nand a thickness d, a third dielectric film of a refractive index nand a thickness d, and a fourth dielectric film of a refractive index nand a thickness d, specifically, aluminum oxide AlOwith a refractive index n=1.638 is used for the first dielectric film, silicon oxide SiOwith a refractive index n=n=1.489 for the second and fourth dielectric films, tantalum oxide TaOwith a refractive index n=2.063 for the third dielectric film, respectively, resulting in a semiconductor laser device with a reflectance which is stably controllable.

Semiconductor laser devices

A semiconductor laser device includes a dielectric multilayer film with a reflectance of 40% or more, on at least one of optical exit faces of a laser chip. The dielectric multilayer film includes a film of tantalum oxide (TaO) and another film of a dielectric oxide, such as aluminum oxide (AlO), and silicon oxide (SiO). The tantalum oxide film has an optical absorption coefficient smaller than that of silicon (Si) and thermal stability in emission superior to that of titanium oxide (TiO), thereby remarkably improving the catastrophic optical damage degradation level of the laser chip.

A display device for a vehicle comprises an instrument for a vehicle (), which includes a plate having a surface on which characters are provided (), an indicating needle () rotatably disposed along a surface of the plate (), and a transparent cover () disposed in a surface side of the plate () separately from the plate (), and a small display portion () is disposed in a portion of the transparent cover () to be a floating state to the plate (), and a new visual effect having a stereoscopic feeling can be obtained because the small display portion () can be seen as the floating state to the surface of the plate ().

Display device for vehicle

Instrument for displaying information for use in an automobile

Instrument for displaying information, for use in an automobile

A light conducting body has a generally conical through bore defined therein. The conical through bore includes a front bore part defined by a sloped surface and a rear bore part defined by a concave surface. A light conducting dial board is installed in the conical through bore with its front face facing forward and positioned in the vicinity of the junction portion between the front and rear bore parts. The dial board has a peripheral edge separated from the inner wall surface of the conical through bore thereby to define therebetween a circumferentially extending space. A light conducting supporting plate is attached to a rear surface of the dial board. The supporting plate is formed with a light transmitting portion which extends rearward and has an rear end intimately received in a recess formed in the rear end of the light conducting body. A plurality of light sources are positioned behind the rear end of the light conducting body. A first light introducing structure is defined by the rear end of the light conducting body, from which light from the light sources enters the light conducting body and travels toward the sloped and concave surfaces of the front and rear bore parts to illuminate the same from within. A second light introducing structure is defined by the light conducting supporting plate, through which light from the light sources enters the light conducting supporting plate and travels toward the dial board to illuminate the same from within.

Growing community of inventors

Tokyo, Japan

Yasuyuki Nakagawa