A system and method for detecting colored objects and decoding messages are provided. A light source is operatively coupled to a power source for emitting light on a colored object. A light receiver is configured to receive the emitted light from the light source as the light reflects off the colored object and is further configured to detect color of the reflected light. Further, a processor is operatively coupled to processor readable media and is configured to receive, via a communications module, information representing the color of the reflected light. A housing is included for supporting the light source, the light receiver, the processor and the communications module. The processor is configured to process the information representing the color of the reflected light and provide at least partial message information corresponding to the color.

In a colorimetric apparatus including a support base configured to support a colorimetric object, a carriage including a detection unit configured to detect a detection target portion formed at the colorimetric object, the carriage supporting a colorimeter, and a movement unit configured to move the carriage, an adjustment value is calculated based on a detection position of the detection unit where the detection unit is caused to detect a detection target portion and a color measurement position of the colorimeter where the colorimeter is caused to measure a color of the detection target portion, and a position of the carriage at the time when a color of a patch is measured is adjusted based on the adjustment value.

Memory efficient methods determine corrected color values from image data acquired by a nucleic acid sequencer during a base calling cycle. Such methods may: (a) obtain an image of a substrate (e.g., a portion of a flow cell) including a plurality of sites where nucleic acid bases are read; (b) measure color values of the plurality of sites from the image of the substrate; (c) store the color values in a processor buffer of the sequencer's one or more processors; (d) retrieve partially phase-corrected color values of the plurality of sites, where the partially phase-corrected color values were stored in the sequencer's memory during an immediately preceding base calling cycle; (e) determine a prephasing correction; and (f) determine the corrected color values. In various implementations, these operations are all performed during a single base calling cycle. In certain embodiments, the methods additionally include using the corrected color values to make base calls for the plurality of sites. Sequencers may be designed or configured to implement such methods.

A portable color measurement device 10 is described. The device 10 has a body 20 including a light source 30 and a sensor 40. The body 20 includes a measurement zone 21 to accommodate, within the body 20, an element 100 to be measured for color. The light source 30 is configured to emit light along a path within the body 20 to the sensor 40. The measurement zone 21 is substantially in the path. The portable color measurement device is configured to measure properties of an accommodated element 100 in dependence on one or more outputs of the sensor 40.

A detachable diffuse reflectance spectroscopy sample spinner (2) for use with a spectrometer (1) in diffuse reflectance spectroscopy. The sample spinner (2) comprises a sample receiving turntable (23) mounted for rotation and a motor unit (5) comprising a motor for rotatingly driving the turntable (23). The spinner (2) can comprise wireless electrical power receiver means (54) for receiving electrical power wirelessly for powering the motor (5).

A transmission spectroscopy device can direct light into a sample, and determine properties of the sample based on how much light emerges from the sample. The device can use a cell to contain the sample, so that the size of the cell defines the optical path length traversed by light in the sample. To ensure accuracy in the measurements, it is beneficial to calibrate the device by measuring the size of the cell periodically or as needed. To measure the size of the cell, the device can perform a transmission spectroscopy measurement of a known substance, such as pure water, to produce a measured absorbance spectrum of the known substance. The device can subtract a known absorbance spectrum of the known substance from the measured absorbance spectrum to form an oscillatory fringe pattern. The device can determine the size of the cell from a period of the fringe pattern.

Disclosed are a colorimeter and a reflectivity measuring method based on a multichannel spectrum. The colorimeter includes a main unit and a calibration box, wherein the main unit includes an integrating sphere, a light source and a main sensor, a detection hole is formed in one side of a top of the integrating sphere, a light-through hole is formed in a side of the integrating sphere, and a measuring port is formed in a bottom of the integrating sphere, the light source is arranged outside the light-through hole, and the main sensor is arranged outside the detection hole; the calibration box includes a housing and a white board arranged at a top of the housing, the white board is correspondingly matched with the measuring port, and the calibration box is connected with the main unit; the sensor is a multichannel spectral sensor.

A colorimetric apparatus includes a detection unit configured to detect a detection target portion. The detection unit detects the detection target portion based on a change in an output value of a light reception amount at the time when a carriage straddles the detection target portion by moving in a first direction or a third direction in the detection operation. The colorimetric apparatus increases a light projection amount and executes a retry operation when the entire output value of the light reception amount of the detection unit is smaller than a first threshold in the detection operation and reduces the light projection amount and executes the retry operation when the entire output value of the light reception amount of the detection unit is larger than a second threshold in the detection operation.

Systems and methods here may be used for automated capturing and analyzing spectrometer data of multiple sample gemstones on a stage, including mapping digital camera image data of samples, applying a Raman Probe to a first sample gemstone under evaluation on the stage, receiving spectrometer data of the sample gemstone from the probe, automatically moving the stage to a second sample, using the image data, and analyzing the other samples.

A colorimetry device includes a support base having a support surface for supporting a measurement target and a carriage unit configured to move in at least one of a first direction, which is a direction along the support surface, and a second direction, which is a direction along the support surface and which intersects the first direction as a moving direction, wherein the carriage unit includes an accommodation section to which a colorimeter, which is configured to measure color of the measurement target, is detachably and attachably accommodated and a first operation section that is a portion to which an external force is applied when the carriage unit is manually moved in the moving direction.