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Technical Information
 

A fast, accurate way to determine the optical properties of Light Emitting Diodes and Laser Diodes The LED-1100 Spectral/Angular Analyzer is a compact, easy to use instrument designed for complete optical analysis of LED performance.

Accurate, Reproducible Spectral Acquisition

The LED Analyzer uses an advanced microprocessor technology for greater sensitivity, reproducibility, and accuracy in data collection. The instrument’s optical system offers a unique combination of a diode array spectrometer and a calibrated large area silicon photodiode radiometer. The spectrometer allows for measurements over the spectral range from 350nm to 1050nm, with wavelength measurement accuracy of less than 0.5nm. The spectrometer provides instant spectrum acquisition — one touch sample analysis gives results in less than 20 seconds.

Instrument Calibration

Instrument calibration is traceable to standards set by the National Institute of Standards and Technology (NIST), Physikalish Technische Bundesanstalt (PTB) and the National Physical Laboratory (NPL).

Measurement Socket Assembly

A convenient, detachable measurement socket assembly allows the user to insert the LED into one of two measurement apertures — spectral and angular. The spectral aperture measures photometric, radiometric and colorimetric parameters. The angular aperture measures intensity profile using a moving sensor that sweeps a 160° arch about the LED. For each plane, the instrument’s software plots the data in either Cartesian or polar coordinates and computes the half intensity viewing angle.

The measurement socket assembly accepts a variety of standard and optional sockets to allow for insertion of different types of LED packages. A standard socket assembly, included with the LED-1100, accepts most types of TO style packages with up to 4 leads from 1/2" to 1 1/2" long. The standard socket assembly also accepts 0.015" to 0.040" lead diameters including axial flathead or hooked styles on pin circles from 0.100" to 0.200". Two optional assemblies are also available: one accepts most TO package formats with 0.100" pin circles with lead diameters to 0.020" and the other accepts a variety of in-line style devices with up to 3 leads including TO-3 and TO-66 with 0.050" to 0.200" between leads.

Powerful Application Software

click image for exploded view
click image for exploded view
 
n RS-232C interface connects the LED Analyzer to your computer. Menu driven software offers a simple point and click operation the initiates the measurement and displays results on your computer screen in tabular or graphic formats. Data management features include a build-in report generation function that includes necessary GLP/GMP information such as date, time, operator name, sample identification, and test parameters. Reports are conveniently viewed on your PC, printed or exported as text to other spreadsheet or data processing software for further review and archiving.

Measure

  • Radiant Intensity (µW/sr)
  • Luminous Intensity (mcd)
  • Intensity Profile
  • Viewing Angle (2q1/2)
  • Peak Wavelength (nm)
  • Center Wavelength (nm)
  • Full Width/Half Max (nm)
  • CIE Purity (%)
  • CIE Chromaticity Coordinates
  • CIE Dominant Wavelength
Features and Benefits
  • One-touch sample analysis with results in 20 seconds
  • Low noise and high stability guarantee accurate and repeatable results
  • Calibration traceable to national laboratories
  • Easy-to-use sample handling mechanism
  • Powerful menu driven software
  • Direct connect to PC for easy report writing and records management
  • Convenient, small bench-top size
  • Rugged construction for trouble free reliable measurements
  • Meets CIE Publication 127 for averaged LED intensity

Specifications and Ordering Information

Ordering Information

Part Number

Description

LED-1100

LED Spectral/Angular Analyzer
Measure angular intensity, radiometric, photometric and spectral properties of light emitting diodes over the wavelength region from 350 to 1050 nm. Socket assembly accepts most types of TO style packages with up to 4 leads from 1/2" to 1 1/2" long. Accepts 0.015" to 0.040" lead diameters including axial flathead or hooked styles on pin circles from 0.100" to 0.200".

Optional Socket Assemblies:   
LED-SA-100
LED Socket Assembly, Laser Diode
Accepts most TO package formats with 0.100" pin circles with lead diameters to 0.020".

LED-SA-200

LED Socket Assembly, In-Line 3
Accepts a variety of in-line style devices with up to 3 leads including TO-3 and TO-66 with 0.050" to 0.200" between leads.

Specifications

Spectral Range:
350 - 1050 nm
Wavelength Accuracy:
<0.5 nm
Wavelength Repeatability
<0.1 nm
Radiometric Range
1.0 µW/sr – 100.0 mW/sr
Photometric Range:
0.1 - 10,000 mcd

Angular Intensity:

range:
measurement interval:
data resolution
repeatability:
0° ± 80°

0.1°
<0.25°
Effective Bandwidth:
10 nm
Response Time (Typical):
<20 seconds
Measurement Repeatability
(temperature stable LED )
Luminous intensity:
<0.5%
Chromaticity coordinates:
±0.003 x, ±0.001 y
Inter-instrument Reproducibility
(temperature stable LED)
Luminous intensity:

Chromaticity coordinates:
 
 
<0.5%
±0.003 x, ±0.001 y
Operating Current Accuracy:
±0.1% ±.016mA
Power Requirements:
100 - 230 VAC, 50/60 Hz
Compliance:
Meets CE regulatory requirements
Computer Interface:
RS-232C serial port
Computer Requirements:
Pentium® processor; 16 Mb Ram; 2 Mb disk space, Windows® 3.1 or higher
Computer Monitor:
640X480 resolution VGA
Instrument Dimensions:
17 in H x 13 in D x 8 in W (44.5 cm x 35.0 cm x 21.0 cm)
Weight:
28 lbs (13Kg)

 

 

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