Hamamatsu-photonics K.k.

Sekisui Medical Co., Ltd.

Fusanori Kondo

Teruo Takeshita

Tomokazu Matsumura

Naoki Iwata

Motoki Morita

Keigo Kohno

Daichi Susuki

Hirotsugu Inoue

Sho Ozawa

Spectrometer

An optical measurement deviceincludes: a measurement unit; and a determination unit, wherein the determination unit calculates a difference value between the initial measurement value and the latter measurement value when the measurement value exceeds the first threshold value after the sample is held by the lateral flow test strip, determines that the sample is positive when the difference value exceeds a second threshold value set in advance, and determines that the sample is negative when the difference value is the second threshold value or less.

Optical measurement device and optical measurement method

An optical measurement device includes a light detection element for detecting detection light including fluorescence generated from an immuno-chromatography test piece irradiated with excitation light and scattered light caused by the excitation light and having a phase equivalent to that of the excitation light, and a cancel circuit for processing a detection signal corresponding to the detection light. The cancel circuit removes a signal component corresponding to the scattered light from the detection signal on the basis of a phase difference between the fluorescence and the scattered light.

An optical measurement device includes an irradiation optical system, a detection optical system, and a cancel circuit. In a fluorescence detection process, a sample is designated as an irradiation target, the sample is irradiated with irradiation light, measurement target light including fluorescence generated from the sample irradiated with the irradiation light and light scattered from the sample irradiated with the irradiation light is detected as detection light, a signal component corresponding to the scattered light is removed from a measurement signal corresponding to the measurement target light in consideration of a result of performing a calibration process during a preliminary process. In the preliminary process, the calibration process for removing a signal component corresponding to the scattered light from the measurement signal is performed on the basis of a calibration signal having a higher signal intensity than a signal corresponding to the scattered light in the measurement signal.

Growing community of inventors

Hamamatsu, Japan

Fusanori Kondo