LED MEASUREMENT SOLUTIONS

Overview

Sphereoptics offers a number of instruments, systems, and components to meet the measurement challenges of today’s LED users and manufacturers.

Select from the
LCS LED Characterizations System,
LCS-LED Goniometric Spectroradiometer
or the ASAHI-SPECTRA IMS 5000 LED Profiler.

Not sure which system? Contact one of our sales engineers who will assist you in choosing the right system for your application or provide a customized solution to meet your exact needs.

LCS LED Characterization System
- modular by design

The LCS LED Characterization System is designed with measurement accuracy, flexibility, and ease-of-use in mind. SphereOptics provides high performance-to-price ratio along with exceptional quality to meet the measurement challenges of today’s LED users and manufacturers.

Our LCS-100 base station is the foundation of our LED measurement solutions product line. At the heart of the test station is a fast scanning 16 bit, 2048 element CCD spectrometer configured to cover either the 350 to 1050 wavelength range or the 280 to 800 nm range. Simply by adding any of our LCS series integrating spheres, ILEDA or ILEDB adapters, power supply, or our goniometer module you can achieve any geometry required for measuring the critical optical, spectral, color, and purity characteristics of LEDs, lamps, and large light sources.

Measure:

• Total Luminous Flux
• Total Spectral Flux
• Averaged Luminous Intensity
• Averaged Spectral RadiantIntensity
• Dominant Wavelength
• Peak Wavelength
• Center Wavelength
• Centroid Wavelength
• FWHM Full Width/Half Max
• Spectral Purity
• Correlated Color Temperature
• Color Rendering Index (CRI)
• Chromaticity Coordinates (x, y, u’, v’)
• L-I-V Characterization Curves

Powerful, Easy-to-Use Software

The system’s Window XP compatible software is intuitive and guides the user through all measurement procedures. The software includes automatic routines to simplify measurements and ensure accuracy for each measurement. Results can be downloaded to database programs such as MS Excel, Word or Access.

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Main data acquisition screen shows real time updates of LED spectrum along with calculated spectral quantities.

Click here to download our complete data sheet and specifications.

LCS-100-G Goniometric Spectroradiometer

The LCS-100-G Goniometric Spectroradiometer enables complete far-field angular characterization of a single LED (standard and high power). Users can perform accurate, repeatable angular characterizations for intensity, spectrum, and derived color values. A front panel rotational dial allows for manual axial rotation of the LED in 15° increments. A small cosine-corrected detector placed at 100 mm sweeps up to 180° at a user selectable resolution as small as 1.8 degrees. Typical scan time for measurements can vary from one minute for low resolution, very bright LED’s up to 10 minutes to complete a full angular scan, including LED brightness, scan averaging and angular range. The system includes a NIST traceable calibration source and dedicated power supply for spectral intensity calibrations.

Measure:

• Candela vs angle
• W/sr-nm vs angle
• Viewing angle
• Peak intensity
• Chromaticity vs angle (x, y, u’ v’)
• Dominant wavelength vs angle
• Peak wavelength vs angle
• Center wavelength vs angle
• Centroid wavelength vs angle
• Color temperature vs angle
• CRI vs angle
• Purity vs angle
• FWHM vs angle

FEATURES

• High Sensivity spectrometer
• 1.5 nm Spectral Resolution
• ±90 scans Horizontal
• Variable resolution 1.8° - 9°
• 0-180° axial rotation in 15° increments
• 0.5 nm Wavelength Accuracy
• NIST traceable calibration Lamp
• Built-in self calibration function
• USB 2.0 computer connection

SYSTEM SOFTWARE

Windows compatible software provides real-time graphics capabilities in an easy, fast environment for accurate measurements. The computer display can be toggled between Cartesian and Polar plots as well as between luminous intensity (candela) and spectral radiant intensity. Data is quickly and easily exported to .csv files that are readable in Excel. The software is compatible with all LCS LED measurement products offered by SphereOptics.

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Click screen to enlarge

ASAHI-SPECTRA IMS 5000 LED Profiler

The IMS-5000 LED profiler is a powerful tool for measuring the critical spatial distribution and optical properties of light emitting diodes (LEDs) and small lamps.

Measure:

• Peak Wavelength (nm)
• Center Wavelength (nm)
• FWHM (nm)
• Spectral Irradiance (µW/m2)
• Illuminance (lx)
• Luminous Intensity (CD)
• Tristimulus Value (X,Y,Z)
• Chromaticity Diagram (x,y)
• Dominant Wavelength (nm)
• Color Purity (%)
• Correlated Color Temperature (K)

Precision Alignment with CCD Camera

The instrument’s CCD camera precisely aligns the sample to provide accurate measurement of the LED; alignment is monitored in real time through the system’s software. Standard stages are available for 5 types of LEDs and the stage can be modified to accommodate most types of sample.

All operations are controlled via PC, and measurement routines are automatic. Data can be viewed in 2D or 3D polar or standard formats.

Software Allows For A Variety Of View Graphs

Standard System Components:

• LED Profiler
• CCD camera for positioning
• Mountable attachments for oval LEDs (3mm/5mm dia.)
• Grating polychromator for VIS (350-850 nm)
• XYZ Micromotion Stage
• Desktop PC with 17 inch LCD Monitor
• Preinstalled Win XP, MS Office, and IMS-5000 operating software

Optional accessories include a thermo-electric cooler, Constant Current Power Supply, Grating Polychromators for UV or NIR measurements. and Bandpass or Neutral Density Filters.

Specifications:

• Model:IMS-5000
• Detector Unit:Grating Polychromator, Single Czerny-Turner
• Focal Length:75mm
• F-number5.6
• Wavelength:350-850nm
• Resolution:5.5nm at 546.1nm
• Wavelength Precision:± 1.2nm
• Wavelength Reproducibility:± 0.6nm
• Imaging Sensor:NMOS, 1024 element
• Exposure Time:20 msec – 30 sec
• Input voltage:AC85V-264V, 50/60 Hz
• Power Consumption:80VA
• Interface:RS485
• Dimensions: (cm)63 W x 38.2 D x 59.5 H, (inches)24.75 W x 15 D x 23.75 H
• Weight:64 kg – 142 lbs.

Download a Datasheet