Integrating Sphere System For Photoelectric Performance Test

0.3M integrating sphere for leds luminous flux test

1, System Functions

The system are composed of integrating sphere, spectroradiometer and computer to determine the spectroradiometric and colorimetric parameters, e.g. spectral power distribution, chromaticity coordinates, correlated color temperature, color rendering index, color tolerance, color difference, luminous flux, current, voltage, wattage, etc.Standards:

1)     Solid-State Lighting Program Requirements

2)     LM-79

3)     CIE127

2,  Technical indicators:

1)SPEC1000A Rapid Spectroradiometer

Spectral range: 380nm ~ 780nm

Measurement speed: rapid speed 3ms~2000ms

Measuring Devices: high-sensitivity CCD imported

Wavelength accuracy: 0.3nm

Wavelength repeatability: 0.2nm

Photometric linearity: 0.5%

Color temperature range: 1500K ~ 30000K

Photometric range(lumens):0.01lm-1.9999×10⁵ lm

Color coordinates accuracy: 0.0008 (Standard light source)

2)1.2m Optical Fiber

  Length: 1.2m

  Diameter: 0.4mm

 Interface dimensions: SMA905

3)0.3m Integrating Sphere

Diameter:0.3m

Fine diffuse reflection. Reflectance ρ≈0.93,BaSO_4;

For Power LED,SMD LED

Entrance port: Φ30mm or customized

Measurement method: center 4π

Equipped with baffle for sensor

Single LED Test  Fixture

With 0.5m integrating sphere

Used  for SMD LED(3014,3528,5050)

Power LED 1W, 3W

MR16, etc

4)Standard Lamp  10W

Sectral range : 380 ~ 780nm continuous spectrum ;

Germany OSRAM;

Life :2000 h ;

DC constant current mode ;

Color temperature 2856K;

Color Temperature Stability : 0.2% ;

Flux stability: 0.2% ;

5)LCP-3005 CC & CV DC Power Supply (30V/5A)

Output:30V,5A

Source / Load effect:

(1) Regulator CV ≤ 5 * 10-4 +1 mV

(2) Steady flow CC ≤ 1 * 10-4 +2 mA

 Rripple factor:

(1) Regulator CV ≤ 1.5mV

(2) Steady flow CC ≤ 5mA