热参数是衡量 LED性能的关键指标。LED在不同温度条件下工作，对于LED的光参数、色参数、电参数、寿命等其它参数都有重大影响。因此，对于LED生产厂家、应用厂家，如何对LED进行合理的散热设计是至关重要的。JDS200参照相关标准，对LED的光、色、电、热进行综合测试，并描绘各参数随时间的变化曲线，使设计人员的工作变得轻轻松松。
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,JDS200 could conduct integration testing on optic,color,electricity and thermal,meanwhile record the changing curve of the parameters with time.
技术特性 Characteristics & Specifications
◆ 测量参数 Measure parameters：
○热学参数 Thermal parameters: 结温、热阻、K系数 Junction temperature,thermal resistance and K factor
○光色参数 Optical parameters：光谱功率分布、色品坐标、相关色温、峰值波长、主波长、半宽度、 红色比显色指数、光功率
Spectral power distribution,chromaticity coordinate,correlative color temperature,peak wavelength,dominant
wavelength,semibreadth,red ratio,rendering index,luminous flux and optical power
○电学参数 Electrical parameters：正向电压、正向电流 Forward voltage（VF）and Forward current（lF）
◆ 波长测量范围 Wavelength measurement range：380~780nm
热沉控制范围 Thermal sink range：5°C~90°C
◆ 波长准确度 Wavelength preciseness: ±0.5nm
色品坐标准确度 Chromaticity coordinate accuracy: ±0.001（标准A光源下）
（Under standard illuminator A）
◆ 温控系统显示精度：0.25%，结温测量准确度：±1οC
Temperature control system display accuracy:0.25%，junction temperature accuracy:±1°C
◆ 描绘各参数随时间的变化曲线 Record the changing curve of parameters with time
◆ 程控设定热沉温度、LED正向电流等参数，以模拟不同LED的实际工作状态
Programmable set thermal sink temperature, and If of LED for the purpose of imitating different working situation of LED
◆ 测试条件符合相关标准
Test condition complies with corresponding international standard
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