SpectroRadiometers - LED Measurement Systems

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LED measurement features

• Measure LED optical output in Luminous & Radiant Flux, spectral irradiance and LUX, microwatts/cm2, moles per second, PAR, Footcandles, CRI & CQS

• LED Measurement Systems include a miniature spectrometer, a fiber optic cable (or direct attachment), a light collecting accessory/integrating sphere, and a NIST traceable intensity calibration

• Real-time 1931 CIE Chromaticity diagram for xy Chromaticity, Dominant Wavelength, Purity, and Correlated Color Temperature (CCT)

• LED Testing spectrometers available to cover the 200-1700nm range

More and more incandescent lights are being replaced by LEDs each day. LEDs have the advantages of increased efficiency, color specificity, size, response time, lifetime, and numerous other factors. StellarNet’s line of low cost miniature spectroradiometers are the perfect tool to analyze LEDs for both irradiant output, color, spectral profiling, and a handful of other useful values. Spectrometers for LED Measurement These miniature rugged spectrometers are calibrated to test LED optical output in Luminous & Radiant Flux, spectral irradiance and LUX, microwatts/cm2, moles per second, PAR, Footcandles, CRI & CQS. Currently, StellarNet offers LED measurement systems in the 200-2300nm range. A majority of StellarNet’s spectrometers can be configured for LED measurement including the BLUE-Wave, High Resolution, High Sensitivity SILVER-Nova, and DWARF-Star NIR spectrometer models. The spectrometers can additionally be calibrated with our NIST traceable lamps for absolute intensity to be used to capture LED intensity profiles and shape. Typically an integrating sphere such as the IC2 2? or IS6 6? or IS12 12? integrating sphere is used with a radiant flux calibration (RAD-CAL). StellarNet LED Testing Solutions? – UV-VIS-NIR Ranges 200-2300nm – Low cost – Ruggedized high performance – Shock-proof – Permanently aligned – SpectraWiz Software included Free – Battery packs and handheld option for field measurements – USB-2 interface to all notebook PCs

Typical System consists of a BLUE-Wave Spectrometer, Fiber Optic Cable, 6'' Integrating Sphere, and a Radiant Flux calibration in Watts/nm

	Visible LED Measurement Spectrometers The StellarNet miniature spectrometers are fiber optically coupled instruments with a wide selection of models for LED measurements in 200-1150nm wavelength ranges. BLACK-Comet and BLUE-Wave models are both very popular with LED testing
	Visible High Resolution (HR) and High Sensitivity (SILVER-Nova) Spectrometers The HR spectrometers have double the resolution over standard models with the same grating. The wavelength range is reduced by the same factor. Resolutions better than 0.1nm can be achieved depending on selected model range, detector, and slit size. The SILVER-Nova and SILVER-Nova-TEC-X2 offer the highest sensitivity with Thermo electric coolers down 15 & 30 degrees respectively which increase detection capabilities for low light LED measurement.
	Near-Infrared LED Test Spectrometers The DWARF-Star and RED-Wave NIR spectrometers can be spectrally calibrated for NIR LED testing from 900-1700nm. StellarNet offers various optional ranges with increase spectral resolution. Likewise a NIR can be paired with a visible unit to give you broadband spectral analysis over the 200-1100nm range.
StellarNet low cost LED Measurement Systems reliably test LED optical output in Luminous & Radiant Flux, spectral irradiance and LUX, microwatts/cm2, moles per second, PAR, Footcandles, CRI & CQS StellarNet offers LED testing systems for comparing LED Lumens, CCT, x,y chromaticity, dominant wavelength and hue for QC/QA in the field such as the StellarRad Handheld Radiometer Laboratory & Research Quality LED Measurement Systems typically include a BLACK-Comet concave grating spectrometer (with optional TEC), optical fiber, and integrating sphere SpectroRadiometer Test Report – Enables customers to prepare and instantly display all of the relevant test data on one sheet making quality control and R&D efforts much more efficient. Instantly, acquire a complete spectrum of your test light source and view its color distribution with an under the curve wavelength color representation.

Bright Light Configurations
In contrast, many industries require the measurement of really bright light emission. StellarNet spectrometers have a dynamic range of 6 decades allowing integration times from 1ms to 65s. StellarNet spectrometers can be specially configured for high power applications. The limitation of a high power radiometer will be limited by the power of the calibration source. StellarNet can configure Spectroradiometers to optimize calibration thus allowing the use of the units large dynamic range and detector linearity to allow high power light measurement. Additionally, smaller slits, fibers, and integration spheres can be employed to decrease the signal to the spectrometer. StellarNet offers a high light level calibration to further optimize the system performance.

*Note only Concave grating spectrometers can be NIST calibrated for deep UV (IRRADUV-CAL) and VIS (IRRAD-CAL) measurements simultaneously.

Item	Description	Price
	Preconfigured LED Measurement System
LED-System	Preconfigured LED Measurement System with IS6 6'' integrating sphere, BLUE-Wave-VIS spectrometer for spectral range 350-1150nm, F600-VISNIR fiber optic cable, & RAD-CAL NIST traceable Radiant Flux calibration in Watts/nm. SpectraWiz Spectroscopy software is included FREE. Preconfigured system also includes an IS-Lamp NIST traceable calibration source for system recalibrations & DUT absorption corrections as well as an IRRAD-CAL-DOC Certificate of Calibration.	$5595
Stellar-RAD	The StellarNet Handheld-Radiometer measures illuminance, chromaticity, dominant wavelength and the complete spectral distribution of all visible light 350-1100nm (with options for Infrared or Ultra Violet). Full spectral data is collected using <1nm research grade optics. It has a 5x7“, touch-pad tablet interface that’s both ergonomic and user-friendly. UV upgrade for 250-1100nm range for $500.	$3495

	Spectrometers for Chemistry Applications
BLUE-Wave	Visible spectrometer 350-1150nm (UV options available)	$2700
BLACK-Comet	Concave Grating spectrometer for UV-VIS. C(190-850nm) or CXR (280-900nm)	$2950
BLACK-Comet-SR	Super Range Concave Grating spectrometer for UV-VIS-NIR. C-SR (200-1080nm) or CXR-SR (220-1100nm)	$3495
BLACK-Comet TEC Upgrade	Thermo Electric Cooler (TEC) upgrade for low light LED testing to improve measurement sensitivity and detection capability. TEC reducing noise effects over %50 at long exposures and includes a sealed and isolated detector enclosure with specialized heat sink and air flow design for added stability and cool operation.	$1650
SILVER-Nova	High Sensitivity “Super Range” spectrometer for 190-1110nm. Price includes slit, UV detector upgrade, detector lens assembly, integrated order sorting filters, composite grating mounted in large optical bench for wide range, included TE cooled detector, and USB-2 interface cable. Standard TE cooler maintains 15 degrees below ambient with 50% noise reduction. Interchangeable Slit upgrade available!	$4495
DWARF-Star	Compact NIR spectrometer with miniature size (5x2x3 '') and extremely robust design with 512 element PDA, range 900-1700nm, 2.5nm resolution with 25um slit, 16-bit digitizer, high speed USB-2.	$13125
DWARF-Star-1024	Compact NIR spectrometer with miniature size (5x2x3 '') and extremely robust design with 1024 element InGaAs PDA, range 900-1700nm, 1.25nm resolution with 25um slit, 16-bit digitizer, high speed USB-2.	$17695
DSR-CSR-512	BLACK-Comet model C-SR (UV-VIS-NIR, CCD) plus RED-Wave- NIR-512 (InGaAs PDA) for 200-1700nm	$16620
DSR-CSR-1024	BLACK-Comet model C-SR (UV-VIS-NIR, CCD) plus RED-Wave-NIR- 1024 (InGaAs PDA) for 200-1700nmDA	$21190

	NIST Traceable Calibration Options
IRRAD-CAL	SpectroRadiometric Calibration VIS-NIR for range 300-1100nm or 900-1700nm	$250
IRRADUVN-CAL	SpectroRadiometric Calibration VIS-NIR for range 300-1700nm	$500
IRRADUV-CAL	SpectroRadiometric Calibration UV for range 200-400nm	$250
RAD-CAL	Radiant power calibration (flux) in Watts/nm and Lumen/nm (for LEDs) 300-1100nm	$250
RAD-CAL-SR	Radiance calibration in Watts/sr/m^2/nm can measure Cd/m^2/nm – requires CR-LENS for CR2	$250
IRRAD-CAL-DOC	Optional Irradiance Calibration certificate with NIST traceable serial numbers	$125

	Fiber Optic Accessories for Calibrated Measurement
CR2	CR2 Cosine Receptor for UV-VIS-NIR 1/4 inch diameter and 180° field of view	$180
CR2-AP	Screw on 10% aperture for CR2, allows measurement of light that is 10 times brighter	$165
IC2	Integrating Cube Receptor (Sphere), 2 x2 x2 inches with 5/8 inch input port	$495
IS6	6” integrating sphere with a 2.0” input port, 1 SMA fiber optic output, and internal white coating	$1745
IS12	12” integrating sphere that allows for internal mounting of devices for light measurement such as discrete LEDs, arrays, and bulbs. The sphere opens for simple access to mounting devices. IS12 Sphere includes lamp with data file used to calibrate the system for total flux measurements in watts/nm and lumens/nm.	$3495
F600-VIS-NIR	Armored, 600um diameter single strand, multimode fiber optic cable with black PVC jacket and 2 SMA conectors-2 meter length for wavelength range 400-2200nm	$160
F600-UVVIS-SR	Armored Solarization Resistant 600um fiber optic cable – 2 meters	$195
IC2-TP	Tripod for mounting and positioning IC2 light receptors	$65