Thermal Resistance Spectroradiometeric System for LED

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 are the most important thing for the manufacturers and users. Referring to the relative international standard, TRS-1000 could conduct integration testing on optic, color, electricity and thermal, meanwhile record the changing curve of the parameters at real time.

LED Thermal Resistance Test and Spectroradiometric Measurement System Technical Specification:
1)  Thermal parameters: Junction temperature, thermal resistance and K factor
• Thermal sink range: 5℃ ~ 90℃
• Temperature control system accuracy: ±1℃
• Junction temperature accuracy: ±1℃

2) Optic and colormetric Parameters: Spectral power distribution, chromaticity coordinate, correlative color temperature, peak wavelength, dominant wavelength, semibreadth, red ratio, rendering index, luminous flux and optical power
• Wavelength range: 380~780nm
• Wavelength accuracy: ±0.3nm
• Repeatability of chromaticity coordinate: ±0.001(Under standard illuminator A)
• Sampling interval: 1nm/5nm
• Photometry repeatability: 1%
• CCT range: 1000~100000K
• Dominant wavelength range: 380~700nm
• Sensor: 2048 unit array CCD
• Integration time: 6μs~10s

3) Electrical parameters: Forward voltage (Vf) and forward current(If)
• Output current range: 1-3000mA
• Output voltage range: 45V
• Max LED power dissipation of LED: 20W