Abstract:
PROBLEM TO BE SOLVED: To easily allow precise calibration in a user side, without using a black-body radiation light source such as an A light source, in a reference light source for the calibration used for calibrating wavelengths and sensitivities of a spectral luminance meter and the spectral illuminance meter. SOLUTION: This reference light source for the calibration uses a plurality of single wavelength light sources emitting respectively reference lights of single wavelengths different each other. A control processing means 5 measures not only an intensity by an intensity monitoring sensor 4, but also a wavelength by a wavelength monitoring spectrometer 3, and finds a reference brightness by an intensity-brightness converting data. The reliability of the obtained reference brightness is enhanced thereby, the sensitivity of the spectral luminance meter 101 to be calibrated is corrected with high precision and reliability, in the user side, the reference light source can use, as the single wavelength light sources, inexpensive LEDs 21-27 capable of providing a large number of wavelengths, and capable of arranging reference wavelengths with a density required for securing the precision of a correction factor by interpolation, and the correction precision is thereby enhanced over the whole measuring wavelength range. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
A field spectral radiometer includes a support structure and a remote sensing head disposed on the support structure. The remote sensing head includes a central axis, a first optical element disposed on a first side of the central axis and defining a first optical path for a first optical channel, and a second optical element disposed on a second side of the central axis and defining second optical path for a second optical channel. An instrumentation assembly disposed on the support structure. the instrumentation assembly includes a first detection path associated with the first optical channel and a second detection path associated with the second optical channel, the first and second detection path include optical indexers for manipulating the first and second optical channels. The field spectral radiometer may include a calibration assembly disposed on the base. The calibration assembly may include a calibrating light source for calibrating the remote sensing head.
Abstract:
There is provided an optical characteristic measurement system that can be set up in a relatively short time and can increase a detection sensitivity. The optical characteristic measurement system includes a first measurement apparatus. The first measurement apparatus includes: a first detection element arranged in a housing; a first cooling unit at least partially joined to the first detection element that cools the detection element; and a suppression mechanism that suppresses temperature variations occurring around the detection element in the housing.
Abstract:
A spectroscopic measurement apparatus includes a light source, an integrator, a first spectroscopic detector, a second spectroscopic detector, and an analysis unit. The integrator includes an internal space in which a measurement object is disposed, a light input portion for inputting light to the internal space, a light output portion for outputting light from the internal space, and a sample attachment portion for attaching the measurement object. The first spectroscopic detector receives the light output from the integrator, disperses the light of a first wavelength region, and acquires first spectrum data. The second spectroscopic detector receives the light output from the integrator, disperses the light of a second wavelength region, and acquires second spectrum data. The first wavelength region and the second wavelength region include a wavelength region partially overlapping each other.
Abstract:
Systems and methods for measuring spectra and other optical characteristics such as colors, translucence, gloss, and other characteristics of objects and materials such as skin. Instruments and methods for measuring spectra and other optical characteristics of skin or other translucent or opaque objects utilize an abridged spectrophotometer and improved calibration/normalization methods. Improved linearization methods also are provided, as are improved classifier-based algorithms. User control is provided via a graphical user interface. Product or product formulations to match the measured skin or other object or to transform the skin or other object are provided to lighten, darken, make more uniform and the like.