Gigahertz-Optik’s BTS256-LED Tester is designed to measure the luminous flux, color and spectral characteristics of pc board mounted LEDs, discrete LEDs within a module, miniature lamps, endoscopes and any narrow beam emitting light source. Larger size light sources can be measured by attaching the LED tester to a Gigahertz-Optik integrating sphere. Plus illuminance can be measured with the optional diffuser window attachment.
The Portable BTS256-LED Tester for Fast & Accurate Measurement of:
- Spectral flux distribution in W/nm
- Illuminance in lux with optional diffuser window
- Peak wavelength
- Dominant wavelength
- Color temperature
- Color rendering index
- Color coordinates (x,y & u’ v’)
Key Components of the LED Measurement Tester
Key components of the BTS256-LED Tester include a built-in 50mm diameter integrating sphere with a unique exchangeable input optic nozzle designed to minimize positional error, auxiliary LED for test sample absorption factor correction, remote controlled shutter for on-line offset compensation of the diode array and GO’s bi-tech sensor.
Built-In Integrating Sphere with Exchangeable Input Nozzle
The integrating sphere is made out of GO’s ODM98 white diffuse plastic and includes a sealed window light output port. Interchangeable different size input nozzles (placed over the board mounted test LED) screw onto the port.
High Precision Photodiode/Compact Spectrometer
The Bi-Technology BTS256P light sensor houses both a high precision photometric filtered photodiode for accurate flux detection over a wide dynamic range and a compact low stray light design spectrometer. To achieve more stable readings in low frequency modulated light applications, the fast integral sensor (photodiode) detects the frequency of the AC component of the light signal. Both sensors (integral and diode array) are then synchronized to that frequency.
Ultra Compact Electronically Controlled Shutter
Another important component is the ultra compact electronically controlled shutter for on-line offset compensation of the diode array array through dark signal measurement and GO Bi-Tech sensor.
Measure Spectral Flux Distribution
Measure and display the spectral flux distribution in W/nm as well as peak intensity wavelength, dominant wavelength, xy and u’v’ color coordinates, color temperature and color rendering index. The measured spectral data is also used for on-line correction of the photometric detector for any photopic spectral mismatch error.
Auxiliary LED Lamp
A white LED auxiliary lamp is included to compensate test sample absorbance errors. The PC operated LED measurement tester, auxiliary lamp function and calibration correction for different size input nozzles are all under control of the supplied G.O.O.S. software.