Hamamatsu-photonics K.k.

Hamanakodenso Co., Ltd.

Denso Corporation

Toyota Jidosha Kabushiki Kaisha

Nippon Soken, Inc.

Leica Geosystems Ag

Hexagon Metrology Kabushiki Kaisha

Kengo Suzuki

Kazuya Iguchi

Shigeru Eura

Kenichiro Ikemura

Motoyoshi Ando

Takao Ishida

Shuhei Oe

Satoshi Suzuki

Hiroyuki Watanabe

Shota Higashihara

Motoyuki Watanabe

Keita Iwasaki

Masahiro Suzuki

Shinichi Yamashita

Shota Toda

Yasuyuki Tanabe

Akihiro Nakamura

Yoichi Sano

Christoph Wiest

Shoji Isogai

Masaki Takabayashi

Hideaki Suzuki

A measuring device includes: an integrating sphere; an excitation optical system; a light detector; and a first detection optical system. The optical axis of the excitation light incident on the subject to be measured in the integrating sphere in the excitation optical system and the optical axis of the light to be measured that is emitted from the integrating sphere in the first detection optical system obliquely intersect with each other, the first detection optical system has an opening portion that limits a detection range of the light to be measured in the light detector, and an irradiation spot of the excitation light on the subject to be measured and the opening portion are in an optically conjugate relationship.

Measuring device

A measurement device includes: an excitation optical system; an illumination optical system, and an image capturing unit. The illumination optical system includes a light transmission member having a central region that has a first color and a peripheral region that has a second color and surrounds the central region, and the excitation optical system and the illumination optical system are optically connected to each other such that in a field of view of the image capturing unit, an irradiation spot of the excitation light on the subject to be measured is included in a central spot region of the illumination light that has passed through the central region and is surrounded by a peripheral spot region of the illumination light that has passed through the peripheral region.

Measurement device

A spectrometry device includes a light source, an integrator configured to have an internal space in which a long afterglow emission material is disposed and output detection light from the internal space, a spectroscopic detector, an analysis unit configured to analyze a photoluminescence quantum yield of the long afterglow emission material, and a control unit configured to control switching between presence and absence of input of excitation light to the internal space and an exposure time in the spectroscopic detector. The control unit controls the light source so that the input of the excitation light to the internal space is maintained in a first period and the input of the excitation light to the internal space is stopped in a second period, and controls the spectroscopic detector so that an exposure time in the second period becomes longer than an exposure time in the first period.

Light measurement device and light measurement method

In a spectrometry device, a control unit controls a light source so that input of excitation light to an internal space is maintained in a first period, and that the input of the excitation light to the internal space is stopped in a second period, and the analysis unit calculates the photoluminescence quantum yield of a long afterglow emission material on the basis of the number of absorbed photons of the long afterglow emission material obtained on the basis of excitation light spectral data in the first period and the number of light emission photons of the long afterglow emission material obtained on the basis of light emission spectral data in any of the first period, the second period, and a total period of the first period and the second period.

An optical measuring device includes an integrator formed with an incident opening on which excitation light is to be incident and an exit opening from which measurement light is to exit, a light guide unit for guiding the measurement light that exits from the exit opening, and a light detecting unit for detecting the measurement light guided by the light guide unit. The light guide unit includes a plurality of light guide members arranged so that incident end surfaces of the light guide members face the inside of the integrator through the exit opening. The light detecting unit detects the measurement light that is guided by at least one of the plurality of light guide members. Light-receiving regions of the plurality of light guide members on the incident end surface side overlap with each other in the integrator.

Optical measuring device comprising light receiving regions of light guide members overlap with each other in an integrator

An entry/exit support structure of a vehicle seat has: a side support portion that is provided in a seat transverse direction of a seat cushion, and that is displaced in a seat vertical direction; a seat sliding mechanism that supports the seat cushion to slide in a seat front-rear direction, and that has a locking device restricting sliding of the seat cushion in the seat front-rear direction; and a side support portion restricting mechanism having a release operation portion. In a state in which the release operation portion is positioned at a lock position, displacement of the side support portion in the seat vertical direction is restricted. In a state in which the release operation portion is positioned at a release position, displacement of the side support portion in the seat vertical direction is permitted and sliding of the seat cushion in the seat front-rear direction is permitted.

Entry/exit support structure of vehicle seat

A spectroscopic measurement apparatus includes a light source, an integrator, a spectroscopic detector, and an analysis unit. The integrator includes an internal space in which a measurement object is disposed, a light input portion for inputting light to the internal space, a light output portion for outputting light from the internal space, a sample attachment portion for attaching the measurement object, and a filter attachment portion for attaching a filter unit. The filter unit has a transmission spectrum in which an attenuation rate for excitation light is larger than an attenuation rate for up-conversion light, and attenuates the light output from the light output portion. The analysis unit analyzes luminous efficiency of the measurement object on the basis of the transmission spectrum data and the spectroscopic spectrum data acquired by the spectroscopic detector.

Spectrometry device and spectrometry method

A spectral measurement apparatus for irradiating a sample as a measurement object with excitation light and detecting light to be measured includes a light source generating the excitation light; an integrator having an input opening portion through which the excitation light is input, and an output opening portion from which the light to be measured is output; a housing portion arranged in the integrator and housing the sample; an incidence optical system making the excitation light incident to the sample; a photodetector detecting the light to be measured output from the output opening portion; and an analysis device calculating a quantum yield of the sample, based on a detection value detected by the photodetector, and the excitation light is applied to the sample so as to include the sample.

Spectrum measuring device, spectrum measuring method, and specimen container

An electromagnetic valve includes: a housing, a ball valve, a ball guide to hold the ball valve, a shaft that displaces the ball valve; an electromagnetic solenoid part that drives the shaft; a seat component; and a seal member. The seat component has a cylindrical portion disposed inside of the housing, and has a predetermined depth in an axial direction. An inflow valve port passes through a first end of the cylindrical portion in the axial direction. The seal member is coupled with an outer circumference part of the housing at a position corresponding to the cylindrical portion.

Electromagnetic valve

An optical measurement device inputs excitation light to an integrating sphere in which a sample is disposed, irradiates the sample with the excitation light having a predetermined beam cross-section, detects measurement light output from the integrating sphere by a photodetector, and acquires intensity data of the sample. The optical measurement device includes a storage unit in which correction data is stored and an optical characteristic calculation unit for calculating optical characteristics of the sample based on the intensity data of the sample and the correction data. The correction data is calculated based on first corrective intensity data and second corrective intensity data. The predetermined beam cross-section is covered with the first light absorbing member and covers the second light absorbing member.

Optical measurement device and optical measurement method

A spectroscopic measurement apparatus includes a light source, an integrator, a first spectroscopic detector, a second spectroscopic detector, and an analysis unit. The integrator includes an internal space in which a measurement object is disposed, a light input portion for inputting light to the internal space, a light output portion for outputting light from the internal space, and a sample attachment portion for attaching the measurement object. The first spectroscopic detector receives the light output from the integrator, disperses the light of a first wavelength region, and acquires first spectrum data. The second spectroscopic detector receives the light output from the integrator, disperses the light of a second wavelength region, and acquires second spectrum data. The first wavelength region and the second wavelength region include a wavelength region partially overlapping each other.

In a solenoid of a hydraulic pressure control apparatus, a region adjacent to an oil flow guide portion of a stopper breathing passage is formed in a magnetism application region, through which a leakage magnetic flux leaking from a magnetic circuit at a time of turning on of a coil passes. Thereby, magnetic foreign objects made of iron or iron containing material are magnetically attracted to the leakage magnetic flux, so that intrusion of the foreign objects from an outside of the solenoid into a second volume variable chamber through the stopper breathing passage is limited.

Solenoid and hydraulic pressure control apparatus having the same

A spectral measurement apparatus includes a light source for generating a excitation light; an integrator having an input opening portion and an output opening portion; a housing portion arranged in the integrator and for housing a sample; an incidence optical system for making the excitation light incident to the sample; a photodetector for detecting a light to be measured output from the output opening portion; and an analysis means for calculating a light absorptance of the sample, based on a detection value detected by the photodetector, and an irradiation area with the excitation light at a position of incidence to the sample is set larger than an irradiated area of the sample, and the analysis means performs an area ratio correction regarding the irradiation area with the excitation light and the irradiated area of the sample, with respect to the light absorptance calculated.

Spectrum measuring device and spectrum measuring method

A solenoid device includes a plunger driven in an axial direction, a wall portion arranged to oppose the plunger in the axial direction, and a respiratory pore cover covering an opening of a respiratory pore of the wall portion. A volume variable chamber is defined between the plunger and the wall portion. The respiratory pore cover defines a communication space communicated to the respiratory pore, and an opening which causes the communication space to communicate with an exterior space. A volume of the communication space is larger than a predetermined volume of fluid that flows through the respiratory pore from or into the volume variable chamber by a predetermined movement of the plunger.

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Hamamatsu, Japan

Kengo Suzuki