Extremely Robust Yet Lightweight Spheres!

Product Announcement from StellarNet, Inc.

Extremely Robust Yet Lightweight Spheres!-Image

StellarNet Integrating Spheres
StellarNet designs and manufactures a variety of low cost integrating spheres and accessories for photometric and radiometric applications. Our spheres are available in a variety of sizes to offer customers the most flexibility when choosing a sphere for their application. The spheres are extremely robust yet are surprisingly lightweight, compact, and easy to operate.

StellarNet integrating spheres, when coupled with a StellarNet spectrometer, provide NIST traceable characterization of all types of light including discrete LEDs, LED arrays, and standard bulbs of various sizes and output intensities. Measurements include absolute intensity in Watts/m2, Lumens/m2, Radiant/Luminous Flux, Correlated Color Temperature (CCT), xy chromaticity, Color Rendering Index (CRI), dominant wavelength, and more across the 200-1700nm wavelength range.

IC2 is a 2” cube with internal integrating sphere. It has 5/8” input port and SMA fiber optic output. Another SMA input can be used for reflectance illumination. Select the CR2-TP miniature tripod for mounting the IC2 for alignment and repeatable measurement.

IS12 For internal device mounting, the StellarSphere-IS12, a 12” diameter integrating sphere, features a vertical hinge that opens to allow access to the sample stage. The sample stage is equipped with powered device mounting sockets with a variety of detachable socket options. In addition, the StellarSphere-IS12 includes a tungsten halogen lamp and data file for system calibration using the SpectraWiz® radiometer application software.

Sphere Calibration
StellarNet’s Tampa, FL manufacturing facility features a dedicated Calibration Lab to provide our products with many calibration options to match specific application requirements. This includes the ability to calibrate for low-light levels, across any range over 200-1700 againstNIST traceable lamps, with optional documentation available. We recommend recalibrating your instrument on a yearly basis, but it should be noted that this is not required since all of our components are built rugged, with no moving parts.

Irradiance Calibrations can be performed by StellarNet using NIST traceable lamps (IRRAD-CAL) or by the customer using SpectraWiz software. Applications include light source characterization of spectral intensity distribution, color temperature, xy chromaticity, dominant wavelength (and more), for LED, laser, solar, industrial lighting, and any type of light emission.

View our LED Radiometry Webpage

IS6 is a 6” diameter integrating sphere with a 2.0” input port, internal reflective coating, baffle system, and SMA fiber optic output.

StellarNet's White Reflectance Coating- on its StellarSpheres is a diffuse white coating paint for reflectance applications covering the UV-VIS-NIR wavelength region. This non-luminescent coating yields reflectance values of 95 to 98% over the wavelength region from 300 to 1700 nm.

A baffle is found in the 6” and 12” spheres and prevents direct light from the input port reaching the fiber optic input port, which can lead to measurement inaccuracies. The baffles are constructed of aluminum and coated with the reflective coating used in the rest of the sphere and designed to maintain the uniformity of the sphere.

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 Inc. : Developing Intelligence from Light since 1991