Described herein are methods and apparatus for spectroscopic analysis of samples. In many embodiments, an apparatus for providing spectroscopic analysis of a sample comprises a sample holder. For example, the sample holder may comprise a consumable single use sample holder that can be readily coupled to and removed from a measurement apparatus such as a spectrometer. The sample holder may comprise a measurement surface configured to receive the sample during measurement, wherein the measurement surface may comprise a porous mesh. The porous mesh can receive the sample to optimally configure the sample for spectroscopic measurement, as described in further detail herein.

A measurement apparatus includes: a sample holder on which a plurality of samples can be placed; a measurement unit configured to measure the plurality of samples placed on the sample holder; and a control unit configured to control a position of the measurement unit relative to a sample to be measured. The sample holder includes a substrate, and a holding unit configured to hold the sample. The substrate is provided with a plurality of holding units. The holding unit is configured to hold each of a plurality of samples having different shapes at a center position of the holding unit.

A display device includes: a display device main body including a display panel and a screen calibration function unit that calibrates a display state of the display panel; and a cover that covers the display panel, the cover including an optical sensor in a surface facing the display panel. The optical sensor measures a screen state of the display panel in a state where the display panel is covered with the cover, and sends a measured value of the optical sensor to the display device main body. The screen calibration function unit calibrates the display state of the display panel by using the measured value.

Colorimeter having first and second illumination units disposed symmetrically to a reference line in a prescribed plane, first and second light-receiving parts disposed symmetrically to the reference line in the prescribed plane, a calculation unit for determining color information about a measurement object, and an opposing wall that opposes the measurement object when it is measured. The opposing wall has an abutting part that abuts the measurement object when it is measured. The abutting part has a pair of first abutting parts disposed on two sides of a measurement opening to flank the measurement opening; and a pair of second abutting parts disposed on an orthogonal line orthogonal to a first-abutting-part connection line that connects the pair of first abutting parts to each other, the pair of second abutting parts being disposed on two sides of the first-abutting-part connection line to flank the first-abutting-part connection line.

An optical characteristics measuring method for measuring optical characteristics of a subject, the optical characteristics measuring method including: a step of acquiring one or more captured images including the subject, using an image capturing apparatus that is located at a predetermined distance from the subject, and is configured to be displaceable relative to the subject, while maintaining the predetermined distance; and a step of creating, based on the one or more captured images thus acquired, a virtual image including the subject and acquired from one or more analysis points each located at a position other than a position on a plane that includes the trajectory of the image capturing apparatus.

A system and method for improving the outcome and consistency of hair coloring is provided. In an example method, an image of hair having a sample color may be received. A color space characteristic associated with the hair sample may be determined. An indication of a target color may be received. A colorant formulation may be identified for changing the hair from the sample color to the target color.

Cuvette, comprising at least one measuring area on each one of two arms that are pivotally connected to each other such that from a swung-apart condition, they can be swung together into a measuring position in which the two measuring areas have a distance for positioning a sample between the measuring areas, and means for positioning the two arms in a measuring position in a cuvette shaft of an optical measuring device with a sample between the two measuring areas in a beam path of the optical measuring device that crosses the cuvette shaft.

A first cover is in a closed state while being held by a second cover due to holding force exerted from a first holding mechanism. The second cover is in a closed state while being held by a housing due to holding force exerted from a second holding mechanism. The second cover is removable from the housing when force is applied against the holding force exerted from the second holding mechanism. The holding force is set such that, when the first cover is brought into an open state from the closed state, the holding of the first cover by the second cover is released with the second cover being held by the housing.

Described herein is a receptacle for holding a sample under spectrophotometer analysis comprising: a body, first and second opposing windows separated by a gap to provide a volume for a sample, wherein at least the first opposing window is supported by a first compliant member, and wherein under a force, the first compliant member allows positioning of the first opposing window relative to a first datum to set a desired: a) gap between the first and second opposing windows, and/or b) relative orientation of the first and second opposing windows.

A method and apparatus for sampling cosmetics and process for producing same comprising a fan deck being a fastened collection of cards, each being a clear plastic substrate on which an accurate color reproduction of a cosmetics product and associated identifying information has been printed.