Measure thermal property of LED according to change of temperature in normal or excessive conditions and analyze change of optical and electrical property in accordance with change of temperature in normal.
- Key features
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ㆍMeasure temperature in PN connection part and thermal resistance by analyzing physical property of high power LED.
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ㆍMeasure thermal property of LED (Optical and thermal property) according to change of temperature in normal or excessive conditions.
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ㆍObtain beneficial information for package design by analyzing functional output of high power LED and figuring out thermal flow.
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ㆍSimultaneous measurement of optical and electrical property of LED in accordance with change of ambient temperature.
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ㆍApplied for obtaining LED efficiency and temperature control in accordance with change of temperature in connection part.
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ㆍSuitable for related R&D and QRA.
- Measuring items
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ㆍThermal property: K-factor at 1mA or 10mA of thermal resistance, temperature in P-N connection part, and functional output.
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ㆍoptical properties: Max wavelength, dominant wavelength(λp, λd), luminous intensity, intensity radiation (Iv,Ie) CIE color coordinate(Cx, Cy), FWHM, Correlated color temperature(CCT), Color rendering index(CRI) , Optical efficiency(K), and Total Luminous flux(Φv,Φe)
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ㆍElectrical property : Forward voltage, reverse voltage(Vf, Vr), Forward current, reverse current(If, Ir ) optical-current-voltage Sweep( L I V Sweep Curve)
- Measuring targets
- Heat sink type SMD LEDs, Metal PCB type LEDs, Multi chip LEDs of SMD type
- SYSTEM structure and specifications
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MEASUREMENT ITEMS JUNTION TEMPERATURE THERMAl RESISTANCE Range 0℃ ~250℃ 0℃/W ~999.9℃/W Accuracy ±0.5℃ ±0.5℃/W Resolution 0.1℃ 0.5℃/W Transient State Rising
Falling
ImpulseSampling rate Max. 1 MHz -
SYSTEM SPECIFICATIONS Analog Output 4MS/sec Analog Input 1MS/sec Channel Input 2 ch Resolution 22bit Source Current ±1A Frequency 200 KHz 이하 Pulse Width 1μ sec 이상 Thermocouple T-type GUI & Hardware interface program
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