Abstract: The present disclosure provides various embodiments of a fluorescence scanning system having a sample holder with a sample suspended within that is rotated by a centrifuge such that the sample is illuminated at various angles by an excitation beam by operation of a galvanometer and such that the sample emits a fluorescence emissions that is detected through a narrow window of exposure defined along the travel path of rotation taken by the sample holder when rotated by the centrifuge. A stationary fluorescence detector is in operative communication with the sample holder along the narrow window of exposure for detecting the fluorescence emissions emitted by the sample from the sample holder while also separating the excitation beam from the fluorescence emissions.

Abstract: A method of determining at least one property associated to a dry particulate substance is disclosed. The method includes providing a sample support capable of containing a liquid medium; providing a dispersed sample including a portion of the particulate substance dispersed in a portion of liquid dispersing medium in the sample support, performing at least one scanning procedure including acquiring a plurality of light transmission images of an image acquisition area translated along a scanning path through the dispersed sample in the sample support using an image acquisition device having an optical axis; processing a plurality of the acquired images and determining said at least one property.

Abstract: Provided are methods, devices, and systems for measuring aquatic biomass in an aqueous liquid, optionally for the cultivation, growth optimization, and harvest of an aquatic biomass for plant protein production. In particular, measurements of aquatic biomass density are based on light absorption of the aquatic biomass. The aquatic biomass includes an aquatic organism such as Lemna, including Lemna minor. The plant protein isolates include a RuBisCO protein.

Abstract: Disclosed is an optical system for interrogating a sample, an optical system for measuring the spectrum of a beam of light, an optical system for measuring the spectrum of two beams of light, a compact imaging-based sensor or sensors, and combinations thereof.

Abstract: Various embodiments include an exemplary design of a high-temperature condensation particle counter (HT-CPC) having particle-counting statistics that are greatly improved over prior art systems since the sample flow of the disclosed HT-CPC is at least eight times greater than the prior art systems. In one embodiment, the HT-CPC includes a saturator block to accept directly a sampled particle-laden gas flow, a condenser block located downstream and in fluid communication with the saturator block, an optics block located downstream and in fluid communication with the condenser block, and a makeup-flow block having a concentric-tube design located in fluid communication with and between the condenser block and the optics block. The makeup-flow block being configured to reduce volatile contents from re-nucleating in the optics block. Other designs and apparatuses are disclosed.

Abstract: A system for detecting a gas may include a first laser having a wavelength overlapping with two or more absorption features in a spectrum of the gas, a second laser having a wavelength centered away from absorbing features in the spectrum of the gas, and at least one sensor to determine a received power of the first laser and a received power of the second laser.

Abstract: Disclosed herein is a composite material suitable for use in surface-enhanced Raman scattering, the material comprising a substrate layer having a surface; a plurality of layers of core-shell particles formed on the surface of the substrate layer, wherein the core is formed from a plasmonic metal nanoparticle, and the shell is formed from a metal-organic framework (MOF), and wherein the plurality of layers of core-shell particles provide a thickness of from 0.5 to 10 um on the surface of the substrate layer. In specific embodiments, the plasmonic metal nanoparticles are silver nanocubes, and the MOF is ZIF-8.

Abstract: Systems and methods for analysing milk are described. A plurality of First Type Sensors (FTPs) are provided, each associated with a respective one of a plurality of Milking Clusters (MKs) of a milking system and configured to analyse milk extracted from an animal by the MK to determine at least one FTP value of a parameter of the milk across an event period. At least one of a Second Type Sensor (STP) associated with at least one of the plurality of MKs is configured to analyse the milk to determine at least one STP value of the parameter within the event period, wherein the STP is less susceptible to animal specific bias than the FTP. An Animal Specific Bias Correction (ASBC) is determined based on the at least one FTP value and the at least one STP value and applied to FTP values for milk extracted from the animal.

Abstract: A colorimetric apparatus has a shutter unit that can shift between a closed position and an open position. The apparatus body has: a shifting member that can shift between a projection position, at which the shifting member projects in a first direction, and a retraction position, at which the shifting member retracts in a second direction; a first pressing member that presses the shifting member in the first direction; and an operation conversion means that converts the shift operation of the shifting member with respect to the apparatus body to the shift operation of the shutter unit. In a state in which the shifting member is at the projection position, the shutter unit is at the closed position. When the shifting member shifts from the projection position to the retraction position, the shutter unit shifts from the closed position to the open position.

Abstract: A wafer storage device may include one or more mutually aligned rails extending from two opposing side walls, each pair of mutually aligned rails configured to support a wafer between the side walls. The wafer storage device includes one or more sensors coupled to at least some of the one or more rails. The one or more sensors may be configured to detect a physical property of the wafer. The wafer storage device may further include a processor configured to analyze data from the one or more sensors, and a memory device. The memory device may be configured to store data produced by at least the one or more sensors or the processor. The wafer storage device may also include a power storage device configured to receive power from an external source and supply power to the one or more sensors and the processor.

Abstract: A fire detection apparatus 1F for detecting a fire in a monitored area, the fire detection apparatus 1F being attached to an installation surface of an installation object, the fire detection apparatus 1F comprises a detection space 60F in which detection of a detection target is performed; an incidence suppressing unit that inhibits ambient light from entering the detection space 60F, the incidence suppressing unit being able to allow a gas containing the detection target to flow into and out of the incidence suppressing unit; an accommodating unit that accommodates the incidence suppressing unit, the accommodating unit being able to allow the gas to flow into and out of the accommodating unit; and a light shielding wall 140F provided to surround the incidence suppressing unit on an inside of the accommodating unit, wherein the incidence suppressing unit includes a first incidence suppressing unit that covers a part of the detection space 60F, and a second incidence suppressing unit provided on an installati

Abstract: An optical signal detection system includes: a nonlinear converter that nonlinearly converts a plurality of first optical signals into a plurality of second optical signals, and also a third optical signal into a fourth optical signal; a spectrometer that obtains each of a plurality of first spectral data items from a different one of the plurality of second optical signals, and also a third spectral data item from the fourth optical signal; and a detection device that detects the third optical signal and outputs a detection result. The detection device includes: an analyzer that performs sparse principal component analysis on the plurality of first spectral data items to generate a plurality of second spectral data items; and a detector that compares the third spectral data item with each of the plurality of second spectral data items, and detects the third optical signal based on the result of the comparison.

Abstract: A reader device for detecting a test result from a testing element carrying a sample includes a radiation source for emitting electromagnetic radiation, an optical system for directing the electromagnetic radiation to the testing element, and a detector for receiving electromagnetic radiation from the testing element and for producing a detection signal responsive to the received electromagnetic radiation. The optical system includes a guide rod for conducting electromagnetic radiation and a lens system for focusing the electromagnetic radiation coming out via an egress-end surface of the guide rod to the testing element. The egress end-surface of the guide rod has an elongated shape so that a radiation pattern having an elongated shape is produced on the testing element. The elongated shape of the radiation pattern facilitates scanning the testing element with the electromagnetic radiation.

Abstract: An optical output system includes: a first laser that outputs first light which is a pulse laser in response to input of a first signal; a second laser that outputs second light which is a pulse laser in response to input of a second signal; and an arithmetic unit that inputs the first signal and the second signal to the first laser and the second laser, wherein the arithmetic unit repeatedly inputs the first signal and the second signal with switching a variable delay value, which is a difference between a timing to input the first signal to the first laser and a timing to input the second signal to the second laser, in a plurality of ways.

Abstract: Comprehensive system for fire detection and implementing thereof. The disclosed system combines and optimizes optical, electrical, and sensor sub-systems to provide the functionality demanded by the market. While many of the individual functions exist separately, none of the existing products combine elements from different sub-systems to provide a much higher level of functionality. The present disclosure shows how to build a very compact housing around the smoke detector while keeping the reflections from the housing structure to a very low value while satisfying all the other peripheral needs of fast response to smoke and preventing ambient light. This allows very small measurements of light scattering of the smoke particles to be reliable in a device resistant to the negative effects of dust.

Abstract: The present invention provides a device (1) for detecting contamination with a photosynthesis inhibitor, the device including a collection device (10) configured to collect a test liquid, a light-blocking pretreatment tank (21) configured to store the test liquid (2) collected by the collection device in a state of containing phytoplankton, a stirring device configured to maintain a floating state of the phytoplankton in the test liquid stored in the pretreatment tank, an irradiation light source configured to irradiate the phytoplankton in the test liquid stored in the pretreatment tank with weak light having an underwater photon flux density that does not cause photoinhibition, a drainage conduit (40) configured to allow the test liquid discharged from the pretreatment tank to flow thereinto, and a fluorescence quantum efficiency measuring machine (50) provided for the drainage conduit and configured to measure a fluorescence quantum efficiency of the phytoplankton in the test liquid discharged from the pre

Abstract: A method for determining a distance to a target comprises: receiving a bitstream of binary digits corresponding to a time-varying signal based on light transmitted by a light source being reflected by the target, wherein each binary digit in the bitstream is defined based on the time-varying signal at a time instance represented by the binary digit being above or below a threshold; comparing the bitstream to a set of stored reference bitstreams, wherein the set comprises pairs comprising a first reference bitstream and a second reference bitstream representing a common distance to the target, wherein the first reference bitstream is phase-shifted in relation to the second reference bitstream; and determining the distance to the target based on selection of a pair of reference bitstreams based on said comparing.

Abstract: Techniques for label-free determination of a value of at least one blood property are presented. The techniques may utilize a device that includes an optical objective including at least one lens, at least a first light source situated so as to provide light to a body part at a location that is off-center from a central axis of the objective, at least a first electronic detector situated to receive light gathered by the optical objective and generate image data, at least one electronic processor communicatively coupled to the first electronic detector, the at least one electronic processor configured to determine the value of the at least one blood property based at least in part on the image data, and an output interface communicatively coupled to the at least one electronic processor and configured to provide the value of the at least one blood property.

Abstract: In a method for inspecting pattern defects, a plurality of patterns are formed over an underlying layer. The plurality of patterns are electrically isolated from each other. A part of the plurality of patterns are scanned with an electron beam to charge the plurality of patterns. An intensity of secondary electrons emitted from the scanned part of the plurality of patterns is obtained. One or more of the plurality of patterns that show an intensity of the secondary electrons different from others of the plurality of patterns are searched.

Abstract: An imaging target for characterization of an optical system has a structure, formed on a substrate, wherein the structure has a base level and has one or more staging surfaces spaced apart from the base level and disposed over a range of distances from the base level; and one or more localized light sources disposed along the one or more staging surfaces of the structure and configured to direct light through or from the structure.