Junction Temperature is a critically important parameter for high reliability LED applications because both LED lifetime and LED light output are directly proportional to junction temperature. Thermal parameter is the key index to evaluate the quality of LED. Different temperature will have significant different effects on optical parameters, color parameters, electricity parameters and life of LED. Therefore, design and control of the thermal dissipation is the most important thing for the manufacturers and users.
Measures:
Junction temperature, Thermal resistance and K factor, Spectral power distribution, LED lifetime(lumen maintenance), chromaticity coordinate, Correlative color temperature, Peak wavelength, Dominant wavelength, Semibreadth, Red ratio, Rendering index, Luminous flux and Optical power, Forward voltage, Forward current
Features:
- Automatically record the changing curve of the parameters with time
- Measurement functions:
LED voltage K factor measurement
Track the instantaneous junction temperature changing
High-resolution measurement of relation in Junction temperature, Thermal resistance and Voltage with time - Programmable set thermal sink temperature
- Friendly graphic user interface provides an easy-to-use operation environment
- Test condition complies with corresponding international standard
Specifications:
- Wavelength measurement range: 380 ~ 780nm
- Thermal sink range: 5oC ~ 90oC
- Wavelength preciseness: ±0.5nm
- Chromaticity coordinate accuracy: ±0.001
- Temperature control system accuracy: ±1oC
- Junction temperature accuracy: ±1oC