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Figure 3: NIST 2.5 m integrating sphere configured for LED measurements (above) and the picture of the sphere with an LED holder (below).https://www.led-professional.com/media/resources-1_articles_measurement-of-leds_measurment3-jpg/viewhttps://www.led-professional.com/media/resources-1_articles_measurement-of-leds_measurment3-jpg/@@images/image-1200-b94b95d2c336d7f12ce6257548f59531.jpeg
Figure 3: NIST 2.5 m integrating sphere configured for LED measurements (above) and the picture of the sphere with an LED holder (below).