Abstract: The present disclosure relates to a method for imaging an optical signal received by a graded index (GRIN) optical element to account for known variations in a graded index distribution of the GRIN optical element. The method may involve using a plurality of optical detector elements to receive optical rays received by the GRIN optical element at a plane, where the plane forms a part of the GRIN optical element or is downstream of the GRIN optical element relative to a direction of propagation of the optical rays. The optical rays are then traced to a plurality of additional specific locations on the plane based on the known variations in the graded index distribution of the GRIN optical element. A processor may be used to determine information on both an intensity and an angle of the received optical rays at each one of the plurality of specific locations on the plane of the GRIN optical element.

Abstract: An optical screening device includes a box and a light source. The box includes two chambers. The first chamber includes an incident passageway made with an exit. The second chamber includes a reflection passageway made with an entrance and an exit. The light source is inserted in the first chamber and adapted for casting incident light onto a first face of an inspected object located out of the box through the exit of the incident passageway so that primary reflected light goes into the second chamber from the first face of the inspected object via the entrance of the reflection passageway and goes out of the second chamber through the exit of the reflection passageway. The entrance of the reflection passageway is made with small width to allow only the primary reflected light to enter the second chamber.

Abstract: An inspection substrate for inspecting a component, such as a liquid confinement system, of an apparatus for processing production substrates is discussed. The inspection substrate includes a body having dimensions similar to a production substrate so that the inspection substrate is compatible with the apparatus, an illumination device, such as light emitting diodes, embedded in the body, a sensor, such as an imaging device or a pressure sensor, that is embedded in the body and configured to generate inspection information, such as image data, relating to a parameter of the component of the apparatus proximate to the inspection substrate, and a storage device embedded in the body and configured to store the inspection information.

Abstract: A chemical sensor, methods of forming the same, and methods of performing chemical detection include a carbon nanotube test surface. A detector is configured to receive a signal from the carbon nanotube test surface responsive to illumination on the nanotube test surface. A matching module is configured to determine whether a chemical is present at the carbon nanotube test surface based on a comparison between the signal and a spectral profile of the chemical.

Abstract: An on-machine measurement device comprises: a moving mechanism that makes scanning irradiation with a laser beam by moving a cutting target as a measurement target relative to a laser source; a half mirror that causes the beam from the laser source to enter the cutting target vertically; a lens that focuses the beam scattered, diffracted, and reflected on the cutting target; a projection plane for a focal image of the beam having passed through the lens; a light-receiving element array that converts an optical signal at the projection plane to an electrical signal and outputs an analog signal; and a calculator that stores received beam information in chronological order acquired by the light-receiving element array, converts the received beam information stored in chronological order to space information to generate an optical diffraction image, and acquires a beam intensity distribution based on the generated optical diffraction image.

Abstract: A spectrally selective (e.g., color) target has been designed and fabricated for reflectance micro- and/or macro-imaging that utilizes microlens arrays and color mirrors. The color mirrors are optical interference coatings. The microlenses are designed and fabricated such that the light reflected from the color mirror is incident onto the detector. This system of microlenses and color mirrors allows the user to image different colored specular highlights. An infinite number of spectral reflectance profiles can be created with these color targets and used for spectral and colorimetric imaging applications. The targets are not limited to the visible region; they can also be designed to work in the ultraviolet and infrared wavelength regions.

Abstract: Apparatuses and methods for spectroscopy using multiple resonance modes are provided. Multiple resonance modes may be used for bulk sensing and/or surface sensing applications. A plasmon waveguide resonance sensor is provided for multimode spectroscopy. The sensor includes a dielectric layer; and a metallic layer coupled to the dielectric layer. The sensor is configured to provide: a first resonance mode for bulk sensing, in response to light of a given wavelength; and a second resonance mode for surface sensing, in response to light of the given wavelength. The first and second resonance modes have different polarizations. Surface plasmon resonance assemblies are provided having a grating coupled to a surface plasmon resonance sensor, the grating being a dielectric grating or a metallic grating. The grating, in response to light, provides various resonance modes having at least two different polarizations for bulk and surface sensing.

Abstract: Flow cytometer systems are provided having intermediate angle scatter detection capability. In some aspects, systems are provided that include an intermediate angle scatter (IAS) light detector positioned to measure intermediate angle scatter emitted from a flow cytometer. The system further includes a mask disposed across a portion of the IAS light detector and positioned between the flow cell and the IAS light detector to cover at least a central portion of the IAS light detector so as to block a diffraction pattern observed at the detector. In some instances, the diffraction pattern is created by a flat beam profile irradiating the sample. Methods are also provided for configuring a flow cytometer to block a diffraction pattern created by (1) a flat laser beam profile irradiating a flow cytometer liquid sample, or (2) a mismatched index of refraction between a sheath fluid and a liquid sample in a flow cytometer.

Abstract: The present invention relates to an optical displacement sensor comprising a first at least partially reflective surface and a second surface having a diffractive pattern, the surfaces being provided on elements having a variable distance between them, each surface pair defining a cavity between them. The sensor also comprising at least one light source transmitting light at least one a chosen wavelength range into said cavities and at least one light detector receiving light from the cavities, wherein said diffractive patterns are adapted to direct light toward at least one detector provided in a known position relative to said diffractive surfaces.

Abstract: A fluid analyzer includes an optical source and detector defining a beam path of an optical beam, and a fluid flow cell on the beam path defining an interrogation region in a fluid channel in which the optical beam interacts with fluids. One or more flow-control devices conduct a particle in a fluid through the fluid channel. A motion system moves the interrogation region relative to the fluid channel in response to a motion signal, and a controller (1) generates the motion signal having a time-varying characteristic, (2) samples an output signal from the optical detector at respective intervals of the motion signal during which the interrogation region contains and does not contain the particle, and (3) determines from output signal samples a measurement value indicative of an optically measured characteristic of the particle.

Abstract: A test device for testing a first contact lens classified as a specific type of contact lens is disclosed. The test device includes a light emitting unit and a detection unit. The light emitting unit emits a first incident light to the first contact lens to generate a first reflected light having a first light intensity, and the detection unit receives the first reflected light, in response to the first light intensity generates a first light intensity value, and implements a specific water content algorithm based on the first light intensity value to estimate an actual water content associated with the first contact lens, wherein the specific water content algorithm is constructed based on a water content reference data associated with the specific type of contact lens and a corresponding light intensity measurement data associated with the water content reference data.

Abstract: A method for reporting motion information from an electronic device to a remote host device includes: using an optical sensor for sensing the motion information of the electronic device, the optical sensor being configured within the electronic device; and reporting a motion result of the electronic device to the remote host device based on the optical sensor when the electronic device has moved a predetermined distance each time.

Abstract: A system and method for mounting a section onto a substrate, the system comprising: a fluid channel including: a fluid channel inlet that receives the section, processed from a bulk embedded sample by a sample sectioning module positioned proximal the fluid channel inlet, a section-mounting region downstream of the fluid channel inlet, and a fluid channel outlet downstream of the section-mounting region; a reservoir in fluid communication with the fluid channel outlet; and a manifold, fluidly coupled to the reservoir, that delivers fluid from the reservoir to the fluid channel inlet, thereby transmitting fluid flow that drives delivery of the section from the fluid channel inlet toward the section-mounting region.

Abstract: An optical sensor is provided. The optical sensor has an emitting system including at least one light emitting device which emits light onto an object; and a detecting system detecting the light which has been emitted by the emitting system and which has propagated through the object. The light emitting device is capable of emitting a plurality of light beams with different wavelengths onto substantially the same position of the object.

Abstract: An optical system and method for quantifying total protein in whole blood or other multi-phase liquids and colloidal suspensions uses refractometry without preliminary steps such as cell separation or centrifugation. A refractometer is integrated with a flow cell to enable the refractive index of a flowing sample to be measured based on a substantially cell free boundary layer of the sample that is present under certain flow conditions. Dimensions of the flow cell are selected to produce a cell-free layer in a flow of whole blood in which the cell free layer is thick enough to reduce scattering of light from the refractometer light source. A numerical method is used to compensate for scattering artifacts. The numerical compensation method is based on the slope and width of a peak in the derivative curve of an angular spectrum image of the flowing sample produced by refractometry.

Abstract: The present disclosure provides a display substrate, a display device and a method for recognizing a positioning mark. The display substrate includes a substrate, and a first pattern and a second pattern formed on a first side of the substrate; the second pattern is disposed between the first pattern and the substrate, and the first pattern has a first through hole directly facing the second pattern; the first pattern and the second pattern are formed of materials having different reflectances, and the first through hole serves as a positioning mark on a first side of the substrate for positioning the first side of the substrate.

Abstract: A test container for checking container inspection machines, which inspection machines are suitable for examining at least a first category of containers for the presence of foreign bodies, with a main body in which a liquid is disposed, with a mouth via which the liquid is able to be introduced into the container, with a first closure by which the container is closed, wherein a foreign body which can be detected by the inspection machine is disposed in the container is provided. The container and/or the liquid disposed therein has a further substance or for example a transmitting device which can be detected by a user and/or by a detection device in order thus to distinguish the test container per se from another container of the category to be inspected.

Abstract: The present invention relates to a method for generating a compensation matrix during a substrate inspection.

Abstract: A lens meter includes a measurement optical system that projects measurement light to a test lens, and receives the measurement light which has passed through the test lens, a control part that calculates an optical characteristic value of the test lens based on the received measurement light, and controls the measurement optical system, a display part that displays the optical characteristic value by control of the control part, and an imaging part that obtains a lens image of the test lens, wherein the control part generates a mapping image showing distribution of the optical characteristic value of the test lens based on the optical characteristic value and position information of a measurement position of the optical characteristic value, generates a superimposed image in which the mapping image is superimposed onto the lens image, and displays the superimposed image on the display part.

Abstract: An optical assurance cap, having a body including a through-bore, a first section having a first light absorption coefficient, a second section having a second light absorption coefficient, and a third section having a third light absorption coefficient, operatively arranged between the first section and the second section, wherein the first and second light absorption coefficients form a first combined light absorption coefficient, and the first, second, and third light absorption coefficients form a second combined light absorption coefficient, the first combined light absorption coefficient being less than the second combined light absorption coefficient.