The LUMERE LED tester is a fully-integrated test system that connects to a Windows XP Pro or Windows 2000 computer using a high-speed USB 2.0 connection. It can rapidly provide spectral and electric test information via a user-friendly graphical interface.

Features Of LUMERE LED tester:

• Extremely fast LED measurements with results in milliseconds
• User-friendly software that simplifies complex measurements
• High-speed USB interface with PC
  • Provides up to 480Mbps communication bandwidth between test system and PC
• On-site NIST traceable recalibration capability
• Digital I/O standard supports
  • 3.3-V Low Voltage Transistor-transistor Logic (LVTTL) and 3.3-V Low Voltage Complimentary Metal Oxide Semiconductor (LVCMOS) I/O standards support for digital channels
  • Digital channels are 5.0-V TTL compatible
  • Fast edge rates for digital signals
• Precision Measurement Unit (PMU) or Source & Measurement Unit (SMU)
  • Up to +/-12V of voltage forcing range
  • Voltage forcing and clamping capability
  • Up to +/-800mA of current forcing range
  • Current forcing and clamping setting capability
• Windows XP Pro and Windows 2000 compatible software

Execution Speed:

• Minimum source-delay-measure cycle time: 1ms
• Interface: USB 2.0 (high speed)
• Hardware Measurement rate: 0.005ms
• Software continuous reading rate: Operating system dependant

Forcing Current Compliance:

• Compliance: Bipolar voltage limit set with single value
• Maximum: +/-10V
• Minimum: +/- 1% of current range
• Accuracy, step size: 8-bit step

Forcing Voltage Compliance:

• Compliance: Bipolar current limit set with single value
• Maximum: +/-200mA
• Minimum: +/- 1% of current range
• Accuracy, step size: 8-bit step

Technocal Data For Optical Test:
The spectrometer is based on the symmetrical Czerny-Turner design with 2048 pixel CCD Detector Array optical bench. The spectrometer has a fiber optic entrance connector (standard SMA, other possible), collimating and focusing mirror and diffraction grating.

Spectrometer

• Detector: 2048 pixel CCD
• Pixel Width/Height: 14 x 56µm
• Grating: 600 lines/mm
• Blaze: 370nm
• Useable Range: 330nm - 850nm
• Pixel Dispersion: <0.3 nm
• Data Point: 0.25nm
• Focal Length: 75mm
• Slit: 25mm
• Sensitivity: 240 V/lx.s
• Sensitivity (using 8 µm in counts per ms integration time): 5000 counts/µW per ms integration time
• Resolution (FWHM): 0.7
• Signal/Noise: 250:1
• AD Converter: 14 bit, 2Mhz
• Integration time: 1.1 msec - 10 minutes
• Data Transfer Speed: 2.0 msec/scan
• Communication: USB 2.0 high speed, 480Mbps
• Input Optics: 600µm
• Fiber Connector: SMA
• Fiber Type: Multimode, Step Index Fiber
• Dimension: 175x110x44 mm
• Weight: 716 grams

Parameter:
The LUMERE (Led Tester) reports the radiometric, photometric and colorimetric parameters. The parameters are stated as below:

• Radiant Flux (µWatt)
• Luminous Flux (lm)
• Radiant Intensity (µWatt/sr)
• Luminous Intensity (Cd)
• Irradiance (µWatt/cm2)
• Illuminance (Lux = lm/cm2)
• Peak Wavelength (nm)
• Bandwidth (FWHM) (nm)
• Dominant Wavelength (nm)
• Central Wavelength (nm)
• Centroid (nm)
• CIE X,Y, u, v color coordinates
• CCT (oC)
• Purity
• Energy emitted (µJoule)
• Radiant Energy (µJoule/sr)
• Energy/cm² (µJoule/cm²)
• Photon Flux/m² (µMol/(s.m²))
• Photon Flux (µMol/s)
• Photon/m² (µMol/m²)
• Photons (µMol)