Various techniques are provided for implementing an imaging system with multiple infrared imaging modules provided in proximity to a visible light imaging module with overlapping fields of view. In one example, a system includes an array of infrared imaging modules configured to capture infrared images overlapping in a shared field of view of the array. The system also includes a visible light imaging module configured to capture a visible light image with a field of view overlapping with the shared field of view of the array. The system also includes a logic device configured to process the infrared images to provide an increased resolution infrared image corresponding to the shared field of view of the array, and generate a combined image comprising content from the increased resolution infrared image and content from the visible light image. Additional methods and systems are also provided.

Provided are methods and systems for concurrent imaging at multiple wavelengths. In one aspect, a hyperspectral/multispectral imaging device includes a lens configured to receive light backscattered by an object, a plurality of photo-sensors, a plurality of bandpass filters covering respective photo-sensors, where each bandpass filter is configured to allow a different respective spectral band to pass through the filter, and a plurality of beam splitters in optical communication with the lens and the photo-sensors, where each beam splitter splits the light received by the lens into a plurality of optical paths, each path configured to direct light to a corresponding photo-sensor through the bandpass filter corresponding to the respective photo-sensor.

A receiver comprises: optical signal distributing means for distributing an optical signal transmitted to detect a detection target on a traveling path to two or more paths; a detection unit configured to detect a received light intensity of the optical signal at a first position where the received light intensity increases when the optical axis is shifted and at a second position where the received light intensity decreases; an intensity ratio calculation unit configured to calculate a ratio between the received light intensity at the first position and the second position based on the output of the detection unit; and a determination unit configured to determine whether or not there is an optical axis shift based on a change in the ratio of the received light intensity calculated by the intensity ratio calculation unit.

A three-dimensional Raman image mapping measuring device for a flowable sample according to an embodiment of the present disclosure is designed to be capable of measuring a flowable sample during mapping measurement of a three-dimensional image that is a region of a confocal Raman by using a micro Raman spectrometer and a three-axis sample stage (Piezo stage). The three-dimensional Raman image mapping measuring device for a flowable sample includes at least one piezo element; an element holder equipped with the piezo element and having an opening, a sample stage for supporting the element holder equipped with the piezo element, an objective lens mounted in the opening in the element holder, a sample holder for controlling vertical movement of the flowable sample disposed under the lower portion of the sample stage, and a transparent window disposed between the sample stage and the sample holder.

A hyperspectral sensing device may include an optical collector configured to collect light and to transfer the collected light to a sensor having spectral resolution sufficient for sensing hyperspectral data. In some examples, the sensor comprises a compact spectrometer. The device further comprises a power supply, an electronics module, and an input/output hub enabling the device to transmit acquired data (e.g., to a remote server). In some examples, a plurality of hyperspectral sensing devices are deployed as a network to acquire data over a relatively large area.

A spectrometry method used by a spectrometry apparatus including a spectrometry section including a spectrometer and an imaging device that captures a spectroscopic image, a spectroscopic controller that controls the action of the spectrometer, and an image generator that generates the spectroscopic image, the method including generating the spectroscopic image, dividing the range of the spectroscopic image into a plurality of regions including at least a first region, determining a reference value of a color value, generating a first region spectrum based on the spectroscopic image of the first region, calculating first region tristimulus values based on the first region spectrum, calculating a first region color value based on the first region tristimulus values, and calculating a first region color difference that is the color difference between the first region color value and the reference value by using a color difference formula.

A spectral imaging device includes an imager, a scanning stage to establish relative motion between the imager and a sample in a scanning direction and an optical system controlling a light characteristic of a light beam constituting an image of the sample to the imager. The optical system includes a light varying element to receive the light beam and provide an output light beam with spatially varying light characteristic over a cross-section thereof. A set of redirecting optical elements direct light rays from the sample to form the light beam, and to focus the output light beam onto the imager. A controller controls the scanning stage and the imager to capture a plurality of image frames with an overlap including a defined shift that is greater than 1 pixel along the scanning direction between consecutive image frames. A computing device consolidates image data to provide an image of the sample.

A spectrometer system may be used to determine one or more spectra of an object, and the one or more spectra may be associated with one or more attributes of the object that are relevant to the user. While the spectrometer system can take many forms, in many instances the system comprises a spectrometer and a processing device in communication with the spectrometer and with a remote server, wherein the spectrometer is physically integrated with an apparatus. The apparatus may have a function different than that of the spectrometer, such as a consumer appliance or device.

This far-infrared spectroscopy device is provided with: a variable wavelength far-infrared light source that generates first far-infrared light; an illuminating optical system that irradiates a sample with the first far-infrared light; a detecting nonlinear optical crystal that converts second far-infrared light into near-infrared light using pump light, said second far-infrared light having been transmitted from the sample; and a far-infrared image-forming optical system that forms an image of the sample in the detecting nonlinear optical crystal. The irradiation position of the first far-infrared light on the sample does not depend on the wavelength of the first far-infrared light.

In one embodiment, an agricultural sampling apparatus is provided. The apparatus comprising: a wave emitter; a wave transmitter configured to direct the waves from the wave emitter as a plurality of linewise waves to irradiate surface points of the agricultural sample; a dispersive element configured to receive waves arriving from the sample and deflect the arriving waves in at least two directions depending upon the wavelength of an arriving wave; and a detector configured with a plurality of detection elements disposed in at least two dimensions, the detector configured to convert the waves arriving from the dispersive element to a signal.