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Perfect For Color Measurement Applications!

Product Announcement from StellarNet, Inc.

Perfect For Color Measurement Applications!-Image

BLACK-Comet-CXR SpectroColorimeters
Instruments for Color Measurement
These instruments measure the color of solid and liquid samples using either a fiber optic reflectance probe, fixture, dip probe, or cuvette holder. The StellarNet BLACK-Comet-CXR colorimeter has consistent resolution throughout 280-900nm and is a perfect low cost instrument for any color measurement application. As one of StellarNet's concave grating models it has low stray light levels because there are no mirrors in its optical bench. It is engineered with no moving parts which results in shock proof durability, permanent alignment, and a ruggedness unmatched by any spectrometer in its field. The BLACK-Comet-CXR reliably measures CIELAB & Delta E* values. StellarNet's BLACK-Comet-CXR colorimeter is applicable for color measurements of food, beverages, industrial and home liquids, textiles, plastics, pharmaceuticals, and raw materials.

Color Measurement Accessories
A fiber optic sample probe is illuminated using a fiber optic light source (see options below). For measuring the color of solid samples an integrating sphere, such as the IC2, can be used in place of the fiber optic reflectance probe to improve measurement consistency. The IC2 act as a cosine receptor for irradiance measurements. In addition, a reflectance fixture with an integrated light source may be used to measure the color of solid and powder samples. A white reflectance standard, such as the RS50 listed below, is required to generate a reference for subsequent measurement of solid samples.

Free SpectraWiz Software
Software is included to provide CIE 1976 L* a* b* (CIELAB) color coordinate data for measurement and tolerancing. The L* (L star) is a measure of Brightness. The a* and b* are the color coordinates that range from -90 to +90 in the CIELAB color space "circle". For a* (a star), -90=green and +90=red. For b* (b star), -90=blue and +90=yellow. To perform color tolerancing, a standard sample is measured and saved for future comparisons. A Delta E* value is then calculated to show the color differences with other samples. Double beam and multi-beam color monitors for continuous industrial process monitoring are configurable by adding additional channels.

Power and InterFace
Portable spectrometers include a USB-2 interface cable and +5VDC power adapter for 120VAC-60H (light sont transformers with U.S. style 2 prong plugs). For usage outside the U.S.A., we offer an upgrade to universal power adapters. If you don't have a USB-2 port, connecting the spectrometer to a second EPP printer port on your computer is most convenient and recommended. For portable notebook computers that don't have a USB-2 port or an EPP capable printer port, we offer the PCMCIA card style EPP interface.

StellarNet Color Analysis System-
BLACK-Comet-CXR colour spectrophotometer, SL1 Halogen Krypton Light Source, R400-7-VIS Reflectance Probe, RPH1 Reflectance Probe Holder, and RS50 Reflection Standard

BLACK-Comet-CXR SpectroColorimeter

- Reliably measure CIELAB & Delta E* values
- Fiber optic Interface for sampling accessories
- Concave grating provides high sensitivity
- Consistent resolution throughout 280-900nm range
- No mirrors for lowest possible stray light
- Extremely rugged with no moving parts
- Shock-proof durability and permanent alignment
- Miniature size, low cost, portable instrumentation
- Battery pack options for field measurements
- Simple USB2 interface to notebook & desktop PCs

See more about StellarNet's Concave Grating Spectrometers!!!

StellarNet's IC2 for Color Measurement Applications-

The IC2 is a 2" internal diameter sphere with 2 SMA connectors for illumination and collection of solid samples . The input port is 5/8".

See more about StellarNet's Integration Spheres!!!

StellarNet's RFX-2 for Color Measurement Applications- Reflectance fixture has integrated light source to enable facile color measurement of solids and powders by placing sample on top

StellarNet manufactures precision fiber optic spectrometers for portable and multi-channel industrial applications, which enable low cost spectroscopy solutions. Our expertise in electro-optics, software design, and applications development, provides unmatched price performance in the global instrumentation market


Since 1991, StellarNet has been producing low cost miniature fiber optic spectrometers and accessories for industrial and academic applications worldwide. StellarNet is now one of the world's leading producers of ruggedized spectrometers for wavelength ranges of 190-2300nm and attributes its success to the eXtreme engineering of its internal optical benches, gratings, extruded electronics and detectors, and airflow optimized aluminum enclosures. StellarNet spectrometers contain no moving parts, detector sockets, or screws, allowing for extended life and eXtreme durability.

Popular Applications

StellarNet offers preconfigured Color measurement Systems, SpectroRadiometer and LED systems, Raman, Thin Film and Optical Measurement systems, SpectroChemistry Systems, Spectrofluorometers, PORTA-LIBS-2000 and Plasma Emission Monitors, and Raman systems.

 Customer Appications:


Technical Support Check out StellarNet's new online technical support!!!

Free SpectraWiz Software Spectroscopy Software It's like a "Swiss Army Knife" of spectroscopy application tools that include customizable LabVIEW and VBA Excel programs and more

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StellarNet Catalog              

View all StellarNet products in an easy to navigate PDF format.



*StellarNet Inc. : Developing Intelligence from Light since 1991