Otsuka Electronics Co.

Ōsaka, Japan

Otsuka Electronics Co.

Ōsaka, Japan

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Patent
Otsuka Electronics Co. | Date: 2016-07-14

A microspectroscope includes: a light source; a plurality of light projecting optical fibers that receive light from the light source; a spectroscope; a plurality of light receiving optical fibers for guiding received light to the spectroscope; and a confocal optical system for causing each of a plurality of beams from the plurality of light projecting optical fibers to be condensed and irradiated onto a sample, and forming images of a plurality of beams from a plurality of condensing points on the sample, respectively on the plurality of light receiving optical fibers.


Patent
Otsuka Electronics Co. | Date: 2017-01-18

An object of the present invention is to provide a two-photon-absorbing compound which is excellent in water-solubility, is excited by two-photon absorption in a near-infrared wavelength region, and emits a red fluorescence. A compound represented by formula (1) [wherein X^(1) and X^(2) are the same or different, and each represents the following formula (2) (wherein R^(1) represents a C1-C3 alkyl group, Z^(-) represents a counter anion to a pyridinium cation, and a wavy line represents a covalent bond to Y), and Y represents a condensed polycyclic group having 2 to 4 rings] is excellent in water-solubility, is excited by two-photon absorption in a near-infrared wavelength region, and emits a red fluorescence.X^(1)-Y-X^(2)(1)


Patent
Otsuka Electronics Co. | Date: 2017-03-01

A microspectroscope (101) includes: a light source (11, 17); a plurality of light projecting optical fibers (12) that receive light from the light source (11, 17); a spectroscope (1); a plurality of light receiving optical fibers (22) for guiding received light to the spectroscope (1); and a confocal optical system (5) for causing each of a plurality of beams from the plurality of light projecting optical fibers (12) to be condensed and irradiated onto a sample, and forming images of a plurality of beams from a plurality of condensing points on the sample, respectively on the plurality of light receiving optical fibers (22).


Patent
Otsuka Electronics Co. | Date: 2015-04-24

A controller of an optical measurement apparatus causes, in a condition that a rotational speed of a rotary body is controlled so that the speed is a specified value, a light source to generate light having a constant intensity and apply the light to an irradiation region, and acquires first timing information based on a change with time of an intensity of reflected light or transmitted light that is output from a second detection unit receiving the reflected light or transmitted light of the applied light. The controller causes the light source to periodically generate pulsed light in accordance with the first timing information and apply the pulsed light to the irradiation region, and acquires second timing information based on a result which is output from the first detection unit whose measurement is periodically enabled in accordance with the first timing information.


Patent
Otsuka Electronics Co. | Date: 2016-11-29

An optical characteristic measurement apparatus which can be reduced in size and can achieve enhanced versatility is provided. The optical characteristic measurement apparatus includes a first optical element which converts measurement light from a measurement target object to parallel light, a reflective lens which reflects the parallel light from the first optical element to convert the parallel light to convergent light, a light reception portion which receives the convergent light from the reflective lens, and a drive mechanism which varies a position of the first optical element relative to the measurement target object.


Patent
Otsuka Electronics Co., Tokyo University of Agriculture and Technology | Date: 2015-06-18

A dynamic light scattering measurement device includes an irradiation section that applies light emitted from a low-coherence light source to a sample that includes particles, a spectral intensity acquisition section that disperses reflected light from a reference plane and scattered light from the sample that has passed through the reference plane to acquire a spectral intensity of interference light of the reflected light and the scattered light, the reference plane being situated to intersect an optical path through which the light is applied to the sample, and a measurement section that measures dynamic light scattering of the sample based on the acquired spectral intensity.


There is provided an optical characteristic measurement system that can be set up in a relatively short time and can increase a detection sensitivity. The optical characteristic measurement system includes a first measurement apparatus. The first measurement apparatus includes: a first detection element arranged in a housing; a first cooling unit at least partially joined to the first detection element that cools the detection element; and a suppression mechanism that suppresses temperature variations occurring around the detection element in the housing.


Patent
Otsuka Electronics Co., Tokyo University of Agriculture and Technology | Date: 2015-12-30

A dynamic light scattering measurement device (1) includes an irradiation section that applies light emitted from a low-coherence light source (10) to a sample (40) that includes particles (42), a spectral intensity acquisition section (62) that disperses reflected light from a reference plane and scattered light from the sample (40) that has passed through the reference plane to acquire a spectral intensity of interference light of the reflected light and the scattered light, the reference plane being situated to intersect an optical path through which the light is applied to the sample, and a measurement section (80) that measures dynamic light scattering of the sample (40) based on the acquired spectral intensity.


A light distribution characteristic measurement apparatus includes an imaging unit disposed at a predetermined distance from a light source, a movement mechanism that successively changes a positional relation of the imaging unit with respect to the light source, while keeping the distance between the light source and the imaging unit, and a processing module that calculates the light distribution characteristic of the light source. The processing module obtains a plurality of image data taken under a first imaging condition and a plurality of image data taken under a second imaging condition different from the first condition, and determines corrected image information corresponding to a relative position of interest, from first image information corresponding to the relative position of interest included in the image data taken under the first condition and second image information corresponding to the relative position of interest included in the image data taken under the second condition.


Patent
Otsuka Electronics Co. | Date: 2016-01-06

A spectrophotometer includes a photodetection unit configured to convert received light into an electric signal to output the electric signal; a circuit unit including a plurality of gain amplifiers and a plurality of AD converters configured to amplify an output signal from the photodetection unit by a plurality of gains using the plurality of gain amplifiers and configured to convert the amplified output signals into digital signals using the plurality of AD converters to output the digital signals as a plurality of pieces of light amount data; a saturation determination unit configured to determine whether or not each of the plurality of pieces of light amount data from the circuit unit has been saturated; and a measurement result calculation unit configured to calculate, in accordance with a result of the determination by the saturation determination unit, a measurement result of the received light using a part or all of the plurality of pieces of light amount data.

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