The present invention is one that intends to achieve improvements in both analysis efficiency and analysis accuracy without difficulty, and a biological substance analysis device that analyzes light derived from a biological substance in a sample, and the biological substance analysis device includes: a holder that holds multiple containers containing the sample; a photodetector that is fixed at a predetermined position; a holder driving mechanism that moves the holder to position each of the containers held in the holder at a detection position by the photodetector in sequence; and a light shielding mechanism that, while guiding light emitted from the sample in a container at the detection position to the photodetector, prevents light emitted from the sample in the other containers from being guided to the photodetector.

An improved disc feeder/conveyor (2) with optical sensor (200) and return chute (10) for multiple industrial, commercial or agricultural applications. The conveyor (2) comprises a pair of co-rotating (or counter-rotating) roller shafts (11A, 11B) driven by a belt (104) drive. The rollers (11A, 11B) are non-parallel, slightly angled, and the rotation of the shafts frictionally engages, the sample caps or other elements being advanced away from the production line causing the items seated thereon advance. Sensors (200, 202) detect the presence/absence of items on the rollers for gating. Another pair of co- or counter-rotating roller shafts (15A, 15B) may act as a return chute (10).

A method for aligning a reaction ring in an analyzer system using a gauge vertical reaction ring comprising at least one end slot includes inserting a light beam gauge into an aperture operable to hold the light beam gauge at a height corresponding to a photometer included in the analyzer system. The gauge vertical reaction ring is rotated on the reaction ring until the light beam gauge engages the end slot to confirm alignment of the reaction ring with the photometer.

The present invention discloses an instantaneous multi-wavelength fluorescence detection instrument and an instantaneous multi-wavelength fluorescence detection method, relating to the field of medical instruments. The instantaneous multi-wavelength fluorescence detection instrument includes a card holder having an accommodating groove, a driving mechanism configured to drive the card holder to move, and an optical module for fluorescence detection. An optical module generates irradiation light of different wavelength by a light source. The irradiation light irradiates the sample to be detected through the first dichroic mirror to generate fluorescence signals of different wavelengths. The fluorescence signals form multiple fluorescence transmission paths through second dichroic mirrors, some of the fluorescence transmission paths are at a reflection light path of the second dichroic mirrors and some of the fluorescence transmission paths are at a transmission light path of the second dichroic mirrors. The fluorescence of different wavelengths is received by a corresponding optical element.

An analyzer and a method for reading a test result of a test apparatus are provided. The analyzer includes an analyzer (1) housing, and a drive system, a photoelectric system, a data processing system and a result output system disposed in the analyzer (1) housing. The test apparatus is carried by an objective stage (10) of the drive system to get in and out of the analyzer (1) to read the test result. The analyzer (1) compact in size and stable in operation is applicable to testing of various biochemical indicators and can improve the efficiency of medical testing.

Analyte collection and testing systems and methods, and more particularly to disposable oral fluid collection and testing systems and methods. Described herein are methods and apparatuses to achieve significant improvements in the detection of fluorescence signals in the reader.

A plasmon resonance (PR) system, instrument, and/or device and configurations thereof for measuring molecular interactions is disclosed. In some embodiments, the PR system, instrument, and/or device is a localized surface plasmon resonance (LSPR) system, instrument, and/or device. In other embodiments, the PR system, instrument, and/or device is a surface plasmon resonance (SPR) system, instrument. The PR system, instrument, and/or device may include, for example, force feedback for reliable flow cell sealing, optical feedback for reliable flow cell sealing, local thermal control of an LSPR chip (e.g., a ring Peltier, a continuous Peltier), dual displacement pumps for constant flow delivery to a microfluidic device, a dual channel LSPR sensor, and any combinations thereof.

It is possible to reduce a burden on a user in performing a spectroscopic analysis of a liquid sample. There is provided an analysis cell that is detachable and replaceable with respect to an analysis unit and accommodates a liquid sample, the analysis cell including a first wall surface pair that is made of a material transmitting a light, and a second wall surface pair for propagating an ultrasonic wave to the accommodated liquid sample, in which a first wall surface and a second wall surface forming the second wall surface pair and facing each other, are formed of materials having different acoustic impedances.

Provided is a position detection method and a position detection device for detecting a position of a sensor chip and obtaining relative positional information between a well member and a prism as for a well chip type sensor chip in which the well member is provided on a prism. By applying measurement light to the sensor chip while changing a distance between the sensor chip and a measurement light irradiation unit and detecting reflected light traveling in a predetermined direction out of the reflected light generated when the measurement light is reflected by the sensor chip, at least any one of the position of the sensor chip and the relative position between a dielectric member and a sample solution holding member is detected on the basis of a change in intensity of the detected reflected light.

The invention relates to a method for microscopic investigation of a plurality of samples. The method contains the step of arranging the samples in a sample holder that is movable, in particular in motorized and/or automatic fashion, relative to a sample illumination position in such a way that at least one of the samples is respectively successively positionable in the sample illumination position, a clearance for a deflection means respectively remaining adjacent to the sample that is currently located in the sample illumination position; the step of focusing a light stripe with an illumination objective; the step of deflecting the light stripe, once it has passed through the illumination objective, with the deflection means in such a way that the light stripe propagates at an angle different from zero degrees with respect to the optical axis of the illumination objective and has a focus in the sample illumination position; and the step of successively positioning the samples, retained with the sample holder, in the sample illumination position, and detecting the detected light emerging from the sample respectively located in the sample illumination position. The invention furthermore relates to an optical apparatus having a sample holder that holds a plurality of samples and is supported movably, in particular in motorized and/or automatic fashion, relative to a sample illumination position in such a way that at least one of the samples is respectively successively positionable in the sample illumination position.